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Option 82, no free leases

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Oskar Stenman

Option 82, no free leases

Hi!

I'm trying to get isc-dhcp-server 4.2.2 to give leases based only on the option-82 value. If we replace a host it should be plug and play, unplug old host, remove it, install new host, plug it in, and it should immediately get the same ip + boot the same pxe image as the old host without any further configuration of the host.

I also tried 4.2.6 and 4.3.3-p1 which i built from source, i even added all debugging features i could find besides the one depending on dump_packet since compile breaks when adding that, Either way it's not giving any usefull information besides the extra output of "Not returning a lease."

I have a subnet and hosts declared like this:

subnet 10.1.13.0 netmask 255.255.255.0 {

option routers 10.1.13.1;

option broadcast-address 10.1.13.255;

ddns-domainname "r13.int.domai";

ddns-ttl 604800;

option domain-name "r13.int.domai";

option domain-name-servers 10.0.0.11, 10.0.0.12;

next-server 10.0.0.10;

option ntp-servers xx.yy.zz.63, xx.yy.zz.62, xx.yy.zz.61, xx.yy.zz.60, xx.yy.zz.59, xx.yy.zz.58;

option pxelinux.pathprefix "/boot/debinstall/debmaint/";

}

group {

host s1-ilo.r13.int.domai { host-identifier option agent.circuit-id "s1-ilo.r13.int.domai"; fixed-address 10.1.13.201; option host-name "s1-ilo"; ddns-hostname "s1-ilo";}

host s2-ilo.r13.int.domai { host-identifier option agent.circuit-id "s2-ilo.r13.int.domai"; fixed-address 10.1.13.202; option host-name "s2-ilo"; ddns-hostname "s2-ilo";}

host s3-ilo.r13.int.domai { host-identifier option agent.circuit-id "s3-ilo.r13.int.domai"; fixed-address 10.1.13.203; option host-name "s3-ilo"; ddns-hostname "s3-ilo";}

host s4-ilo.r13.int.domai { host-identifier option agent.circuit-id "s4-ilo.r13.int.domai"; fixed-address 10.1.13.204; option host-name "s4-ilo"; ddns-hostname "s4-ilo";}

host s5-ilo.r13.int.domai { host-identifier option agent.circuit-id "s5-ilo.r13.int.domai"; fixed-address 10.1.13.205; option host-name "s5-ilo"; ddns-hostname "s5-ilo";}

host s6-ilo.r13.int.domai { host-identifier option agent.circuit-id "s6-ilo.r13.int.domai"; fixed-address 10.1.13.206; option host-name "s6-ilo"; ddns-hostname "s6-ilo";}

host s7-ilo.r13.int.domai { host-identifier option agent.circuit-id "s7-ilo.r13.int.domai"; fixed-address 10.1.13.207; option host-name "s7-ilo"; ddns-hostname "s7-ilo";}

host s8-ilo.r13.int.domai { host-identifier option agent.circuit-id "s8-ilo.r13.int.domai"; fixed-address 10.1.13.208; option host-name "s8-ilo"; ddns-hostname "s8-ilo";}

host s9-ilo.r13.int.domai { host-identifier option agent.circuit-id "s9-ilo.r13.int.domai"; fixed-address 10.1.13.209; option host-name "s9-ilo"; ddns-hostname "s9-ilo";}

host s10-ilo.r13.int.domai { host-identifier option agent.circuit-id "s10-ilo.r13.int.domai"; fixed-address 10.1.13.210; option host-name "s10-ilo"; ddns-hostname "s10-ilo";}

host s11-ilo.r13.int.domai { host-identifier option agent.circuit-id "s11-ilo.r13.int.domai"; fixed-address 10.1.13.211; option host-name "s11-ilo"; ddns-hostname "s11-ilo";}

host s12-ilo.r13.int.domai { host-identifier option agent.circuit-id "s12-ilo.r13.int.domai"; fixed-address 10.1.13.212; option host-name "s12-ilo"; ddns-hostname "s12-ilo";}

host s13-ilo.r13.int.domai { host-identifier option agent.circuit-id "s13-ilo.r13.int.domai"; fixed-address 10.1.13.213; option host-name "s13-ilo"; ddns-hostname "s13-ilo";}

host s14-ilo.r13.int.domai { host-identifier option agent.circuit-id "s14-ilo.r13.int.domai"; fixed-address 10.1.13.214; option host-name "s14-ilo"; ddns-hostname "s14-ilo";}

host s15-ilo.r13.int.domai { host-identifier option agent.circuit-id "s15-ilo.r13.int.domai"; fixed-address 10.1.13.215; option host-name "s15-ilo"; ddns-hostname "s15-ilo";}

host s16-ilo.r13.int.domai { host-identifier option agent.circuit-id "s16-ilo.r13.int.domai"; fixed-address 10.1.13.216; option host-name "s16-ilo"; ddns-hostname "s16-ilo";}

host s17-ilo.r13.int.domai { host-identifier option agent.circuit-id "s17-ilo.r13.int.domai"; fixed-address 10.1.13.217; option host-name "s17-ilo"; ddns-hostname "s17-ilo";}

host s18-ilo.r13.int.domai { host-identifier option agent.circuit-id "s18-ilo.r13.int.domai"; fixed-address 10.1.13.218; option host-name "s18-ilo"; ddns-hostname "s18-ilo";}

host s19-ilo.r13.int.domai { host-identifier option agent.circuit-id "s19-ilo.r13.int.domai"; fixed-address 10.1.13.219; option host-name "s19-ilo"; ddns-hostname "s19-ilo";}

host s20-ilo.r13.int.domai { host-identifier option agent.circuit-id "s20-ilo.r13.int.domai"; fixed-address 10.1.13.220; option host-name "s20-ilo"; ddns-hostname "s20-ilo";}

host s21-ilo.r13.int.domai { host-identifier option agent.circuit-id "s21-ilo.r13.int.domai"; fixed-address 10.1.13.221; option host-name "s21-ilo"; ddns-hostname "s21-ilo";}

host s22-ilo.r13.int.domai { host-identifier option agent.circuit-id "s22-ilo.r13.int.domai"; fixed-address 10.1.13.222; option host-name "s22-ilo"; ddns-hostname "s22-ilo";}

host s23-ilo.r13.int.domai { host-identifier option agent.circuit-id "s23-ilo.r13.int.domai"; fixed-address 10.1.13.223; option host-name "s23-ilo"; ddns-hostname "s23-ilo";}

host s24-ilo.r13.int.domai { host-identifier option agent.circuit-id "s24-ilo.r13.int.domai"; fixed-address 10.1.13.224; option host-name "s24-ilo"; ddns-hostname "s24-ilo";}

host s25-ilo.r13.int.domai { host-identifier option agent.circuit-id "s25-ilo.r13.int.domai"; fixed-address 10.1.13.225; option host-name "s25-ilo"; ddns-hostname "s25-ilo";}

host s26-ilo.r13.int.domai { host-identifier option agent.circuit-id "s26-ilo.r13.int.domai"; fixed-address 10.1.13.226; option host-name "s26-ilo"; ddns-hostname "s26-ilo";}

host s27-ilo.r13.int.domai { host-identifier option agent.circuit-id "s27-ilo.r13.int.domai"; fixed-address 10.1.13.227; option host-name "s27-ilo"; ddns-hostname "s27-ilo";}

host s28-ilo.r13.int.domai { host-identifier option agent.circuit-id "s28-ilo.r13.int.domai"; fixed-address 10.1.13.228; option host-name "s28-ilo"; ddns-hostname "s28-ilo";}

host s29-ilo.r13.int.domai { host-identifier option agent.circuit-id "s29-ilo.r13.int.domai"; fixed-address 10.1.13.229; option host-name "s29-ilo"; ddns-hostname "s29-ilo";}

host s30-ilo.r13.int.domai { host-identifier option agent.circuit-id "s30-ilo.r13.int.domai"; fixed-address 10.1.13.230; option host-name "s30-ilo"; ddns-hostname "s30-ilo";}

host s31-ilo.r13.int.domai { host-identifier option agent.circuit-id "s31-ilo.r13.int.domai"; fixed-address 10.1.13.231; option host-name "s31-ilo"; ddns-hostname "s31-ilo";}

host s32-ilo.r13.int.domai { host-identifier option agent.circuit-id "s32-ilo.r13.int.domai"; fixed-address 10.1.13.232; option host-name "s32-ilo"; ddns-hostname "s32-ilo";}

host s33-ilo.r13.int.domai { host-identifier option agent.circuit-id "s33-ilo.r13.int.domai"; fixed-address 10.1.13.233; option host-name "s33-ilo"; ddns-hostname "s33-ilo";}

host s34-ilo.r13.int.domai { host-identifier option agent.circuit-id "s34-ilo.r13.int.domai"; fixed-address 10.1.13.234; option host-name "s34-ilo"; ddns-hostname "s34-ilo";}

host s35-ilo.r13.int.domai { host-identifier option agent.circuit-id "s35-ilo.r13.int.domai"; fixed-address 10.1.13.235; option host-name "s35-ilo"; ddns-hostname "s35-ilo";}

host s36-ilo.r13.int.domai { host-identifier option agent.circuit-id "s36-ilo.r13.int.domai"; fixed-address 10.1.13.236; option host-name "s36-ilo"; ddns-hostname "s36-ilo";}

host s37-ilo.r13.int.domai { host-identifier option agent.circuit-id "s37-ilo.r13.int.domai"; fixed-address 10.1.13.237; option host-name "s37-ilo"; ddns-hostname "s37-ilo";}

host s38-ilo.r13.int.domai { host-identifier option agent.circuit-id "s38-ilo.r13.int.domai"; fixed-address 10.1.13.238; option host-name "s38-ilo"; ddns-hostname "s38-ilo";}

host s39-ilo.r13.int.domai { host-identifier option agent.circuit-id "s39-ilo.r13.int.domai"; fixed-address 10.1.13.239; option host-name "s39-ilo"; ddns-hostname "s39-ilo";}

host s40-ilo.r13.int.domai { host-identifier option agent.circuit-id "s40-ilo.r13.int.domai"; fixed-address 10.1.13.240; option host-name "s40-ilo"; ddns-hostname "s40-ilo";}

}

And all i get in the log is:

2016-02-04T18:35:48.124024+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:01:52 via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:48.124055+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:01:52 via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:48.240046+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:47:1c via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:48.240152+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:47:1c via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:48.799417+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:00:ef via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:48.799508+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:00:ef via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:48.920182+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:3f:6f via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:48.920432+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:3f:6f via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:49.125385+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:01:1f via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:49.125487+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:01:1f via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:49.343455+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:42:8d via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:49.343487+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:42:8d via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:49.461783+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:01:49 via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:49.461815+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:01:49 via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:49.617856+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:01:01 via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:49.617888+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:01:01 via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:49.654026+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:01:0a via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:49.654059+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:01:0a via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:49.666002+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:41:97 via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:49.666146+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:41:97 via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:49.773406+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:01:46 via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:49.773655+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:01:46 via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:49.826255+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:01:4f via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:49.826330+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:01:4f via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:50.257486+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:42:cc via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:50.257518+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:42:cc via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:50.273982+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:01:31 via 10.1.13.2: network 10.1.13.0/24: no free leases

2016-02-04T18:35:50.274015+00:00 dhcphost dhcpd: DHCPDISCOVER from 34:17:eb:e7:01:31 via 10.1.13.2: network 10.1.13.0/24: no free leases

For some reason dhcpd "refuses" to match on agent.circuit-id.

I've tried:

range 10.1.13.201 10.1.13.240 -> random assignments from the range.

pool {

range 10.1.13.201 10.1.13.240

} -> random assignments

pool {

range 10.1.13.150 10.1.13.153

} -> 3 random assignments

+ all possible combinations of deny unknown-clients, allow known-clients and similar to these that i could think of, nothing works. either no ip is assigned, or all of them are assigned random ip's..

tcpdump shows the circuit-id:

22:22:16.595500 IP (tos 0x0, ttl 255, id 11344, offset 0, flags [none], proto UDP (17), length 364)

10.1.13.2.67 > 10.0.0.11.67: [udp sum ok] BOOTP/DHCP, Request from 34:17:eb:e7:3f:a2, length 336, hops 1, xid 0xc95ed144, Flags [none] (0x0000)

Gateway-IP 10.1.13.2

Client-Ethernet-Address 34:17:eb:e7:3f:a2

Vendor-rfc1048 Extensions

Magic Cookie 0x63825363

DHCP-Message Option 53, length 1: Discover

Client-ID Option 61, length 7: ether 34:17:eb:e7:3f:a2

Hostname Option 12, length 17: "bmc-DPT1852-0-0-2"

Vendor-Class Option 60, length 11: "udhcp 1.8.2"

MSZ Option 57, length 2: 576

Parameter-Request Option 55, length 8:

Subnet-Mask, Default-Gateway, Domain-Name-Server, Hostname

Domain-Name, BR, NTP, Vendor-Option

Agent-Information Option 82, length 35:

Circuit-ID SubOption 1, length 23: ^A^Us18-ilo.r13.int.domai

Remote-ID SubOption 2, length 8: ^@^FX^J M-fiM-^@

What am i doing wrong?

/Oskar Stenman

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glenn.satchell

Re: Option 82, no free leases

Hi Oskar

The tcpdump shows the true contents of the circuit-id option is
"^A^Us18-ilo.r13.int.domai" but you are trying to match against the string
"s18-ilo.r13.int.domai", so that's not equal.

So your match string needs to be "\000\025s18-ilo.r13.int.domai" where
control A is \000 in octal, and control U is \025 (I think I have that
right, you may need to check).

The format of strings is described in the dhcp-eval man page under the
heading "string".

regards,
-glenn

On Fri, February 5, 2016 9:40 am, Oskar Stenman wrote:

> Hi!
>
> I'm trying to get isc-dhcp-server 4.2.2 to give leases based only on the
> option-82 value. If we replace a host it should be plug and play, unplug
> old host, remove it, install new host, plug it in, and it should
> immediately get the same ip + boot the same pxe image as the old host
> without any further configuration of the host.
>
> I also tried 4.2.6 and 4.3.3-p1 which i built from source, i even added
> all
> debugging features i could find besides the one depending on dump_packet
> since compile breaks when adding that, Either way it's not giving any
> usefull information besides the extra output of "Not returning a lease."
>
> I have a subnet and hosts declared like this:
>
> subnet 10.1.13.0 netmask 255.255.255.0 {
> option routers 10.1.13.1;
> option broadcast-address 10.1.13.255;
> ddns-domainname "r13.int.domai";
> ddns-ttl 604800;
> option domain-name "r13.int.domai";
> option domain-name-servers 10.0.0.11, 10.0.0.12;
> next-server 10.0.0.10;
> option ntp-servers xx.yy.zz.63, xx.yy.zz.62, xx.yy.zz.61, xx.yy.zz.60,
> xx.yy.zz.59, xx.yy.zz.58;
> option pxelinux.pathprefix "/boot/debinstall/debmaint/";
> }
>
> group {
> host s1-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s1-ilo.r13.int.domai"; fixed-address 10.1.13.201; option host-name
> "s1-ilo"; ddns-hostname "s1-ilo";}
> host s2-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s2-ilo.r13.int.domai"; fixed-address 10.1.13.202; option host-name
> "s2-ilo"; ddns-hostname "s2-ilo";}
> host s3-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s3-ilo.r13.int.domai"; fixed-address 10.1.13.203; option host-name
> "s3-ilo"; ddns-hostname "s3-ilo";}
> host s4-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s4-ilo.r13.int.domai"; fixed-address 10.1.13.204; option host-name
> "s4-ilo"; ddns-hostname "s4-ilo";}
> host s5-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s5-ilo.r13.int.domai"; fixed-address 10.1.13.205; option host-name
> "s5-ilo"; ddns-hostname "s5-ilo";}
> host s6-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s6-ilo.r13.int.domai"; fixed-address 10.1.13.206; option host-name
> "s6-ilo"; ddns-hostname "s6-ilo";}
> host s7-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s7-ilo.r13.int.domai"; fixed-address 10.1.13.207; option host-name
> "s7-ilo"; ddns-hostname "s7-ilo";}
> host s8-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s8-ilo.r13.int.domai"; fixed-address 10.1.13.208; option host-name
> "s8-ilo"; ddns-hostname "s8-ilo";}
> host s9-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s9-ilo.r13.int.domai"; fixed-address 10.1.13.209; option host-name
> "s9-ilo"; ddns-hostname "s9-ilo";}
> host s10-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s10-ilo.r13.int.domai"; fixed-address 10.1.13.210; option host-name
> "s10-ilo"; ddns-hostname "s10-ilo";}
> host s11-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s11-ilo.r13.int.domai"; fixed-address 10.1.13.211; option host-name
> "s11-ilo"; ddns-hostname "s11-ilo";}
> host s12-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s12-ilo.r13.int.domai"; fixed-address 10.1.13.212; option host-name
> "s12-ilo"; ddns-hostname "s12-ilo";}
> host s13-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s13-ilo.r13.int.domai"; fixed-address 10.1.13.213; option host-name
> "s13-ilo"; ddns-hostname "s13-ilo";}
> host s14-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s14-ilo.r13.int.domai"; fixed-address 10.1.13.214; option host-name
> "s14-ilo"; ddns-hostname "s14-ilo";}
> host s15-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s15-ilo.r13.int.domai"; fixed-address 10.1.13.215; option host-name
> "s15-ilo"; ddns-hostname "s15-ilo";}
> host s16-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s16-ilo.r13.int.domai"; fixed-address 10.1.13.216; option host-name
> "s16-ilo"; ddns-hostname "s16-ilo";}
> host s17-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s17-ilo.r13.int.domai"; fixed-address 10.1.13.217; option host-name
> "s17-ilo"; ddns-hostname "s17-ilo";}
> host s18-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s18-ilo.r13.int.domai"; fixed-address 10.1.13.218; option host-name
> "s18-ilo"; ddns-hostname "s18-ilo";}
> host s19-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s19-ilo.r13.int.domai"; fixed-address 10.1.13.219; option host-name
> "s19-ilo"; ddns-hostname "s19-ilo";}
> host s20-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s20-ilo.r13.int.domai"; fixed-address 10.1.13.220; option host-name
> "s20-ilo"; ddns-hostname "s20-ilo";}
> host s21-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s21-ilo.r13.int.domai"; fixed-address 10.1.13.221; option host-name
> "s21-ilo"; ddns-hostname "s21-ilo";}
> host s22-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s22-ilo.r13.int.domai"; fixed-address 10.1.13.222; option host-name
> "s22-ilo"; ddns-hostname "s22-ilo";}
> host s23-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s23-ilo.r13.int.domai"; fixed-address 10.1.13.223; option host-name
> "s23-ilo"; ddns-hostname "s23-ilo";}
> host s24-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s24-ilo.r13.int.domai"; fixed-address 10.1.13.224; option host-name
> "s24-ilo"; ddns-hostname "s24-ilo";}
> host s25-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s25-ilo.r13.int.domai"; fixed-address 10.1.13.225; option host-name
> "s25-ilo"; ddns-hostname "s25-ilo";}
> host s26-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s26-ilo.r13.int.domai"; fixed-address 10.1.13.226; option host-name
> "s26-ilo"; ddns-hostname "s26-ilo";}
> host s27-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s27-ilo.r13.int.domai"; fixed-address 10.1.13.227; option host-name
> "s27-ilo"; ddns-hostname "s27-ilo";}
> host s28-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s28-ilo.r13.int.domai"; fixed-address 10.1.13.228; option host-name
> "s28-ilo"; ddns-hostname "s28-ilo";}
> host s29-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s29-ilo.r13.int.domai"; fixed-address 10.1.13.229; option host-name
> "s29-ilo"; ddns-hostname "s29-ilo";}
> host s30-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s30-ilo.r13.int.domai"; fixed-address 10.1.13.230; option host-name
> "s30-ilo"; ddns-hostname "s30-ilo";}
> host s31-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s31-ilo.r13.int.domai"; fixed-address 10.1.13.231; option host-name
> "s31-ilo"; ddns-hostname "s31-ilo";}
> host s32-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s32-ilo.r13.int.domai"; fixed-address 10.1.13.232; option host-name
> "s32-ilo"; ddns-hostname "s32-ilo";}
> host s33-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s33-ilo.r13.int.domai"; fixed-address 10.1.13.233; option host-name
> "s33-ilo"; ddns-hostname "s33-ilo";}
> host s34-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s34-ilo.r13.int.domai"; fixed-address 10.1.13.234; option host-name
> "s34-ilo"; ddns-hostname "s34-ilo";}
> host s35-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s35-ilo.r13.int.domai"; fixed-address 10.1.13.235; option host-name
> "s35-ilo"; ddns-hostname "s35-ilo";}
> host s36-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s36-ilo.r13.int.domai"; fixed-address 10.1.13.236; option host-name
> "s36-ilo"; ddns-hostname "s36-ilo";}
> host s37-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s37-ilo.r13.int.domai"; fixed-address 10.1.13.237; option host-name
> "s37-ilo"; ddns-hostname "s37-ilo";}
> host s38-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s38-ilo.r13.int.domai"; fixed-address 10.1.13.238; option host-name
> "s38-ilo"; ddns-hostname "s38-ilo";}
> host s39-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s39-ilo.r13.int.domai"; fixed-address 10.1.13.239; option host-name
> "s39-ilo"; ddns-hostname "s39-ilo";}
> host s40-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s40-ilo.r13.int.domai"; fixed-address 10.1.13.240; option host-name
> "s40-ilo"; ddns-hostname "s40-ilo";}
> }
>
>
> And all i get in the log is:
> 2016-02-04T18:35:48.124024+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:52 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:48.124055+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:52 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:48.240046+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:47:1c via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:48.240152+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:47:1c via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:48.799417+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:00:ef via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:48.799508+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:00:ef via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:48.920182+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:3f:6f via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:48.920432+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:3f:6f via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.125385+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:1f via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.125487+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:1f via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.343455+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:42:8d via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.343487+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:42:8d via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.461783+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:49 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.461815+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:49 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.617856+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:01 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.617888+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:01 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.654026+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:0a via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.654059+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:0a via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.666002+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:41:97 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.666146+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:41:97 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.773406+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:46 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.773655+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:46 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.826255+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:4f via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.826330+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:4f via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:50.257486+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:42:cc via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:50.257518+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:42:cc via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:50.273982+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:31 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:50.274015+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:31 via 10.1.13.2: network 10.1.13.0/24: no free leases
>
> For some reason dhcpd "refuses" to match on agent.circuit-id.
> I've tried:
> range 10.1.13.201 10.1.13.240 -> random assignments from the range.
>
> pool {
> range 10.1.13.201 10.1.13.240
> } -> random assignments
>
> pool {
> range 10.1.13.150 10.1.13.153
> } -> 3 random assignments
>
> + all possible combinations of deny unknown-clients, allow known-clients
> and similar to these that i could think of, nothing works. either no ip is
> assigned, or all of them are assigned random ip's..
>
> tcpdump shows the circuit-id:
> 22:22:16.595500 IP (tos 0x0, ttl 255, id 11344, offset 0, flags [none],
> proto UDP (17), length 364)
> 10.1.13.2.67 > 10.0.0.11.67: [udp sum ok] BOOTP/DHCP, Request from
> 34:17:eb:e7:3f:a2, length 336, hops 1, xid 0xc95ed144, Flags [none]
> (0x0000)
> Gateway-IP 10.1.13.2
> Client-Ethernet-Address 34:17:eb:e7:3f:a2
> Vendor-rfc1048 Extensions
> Magic Cookie 0x63825363
> DHCP-Message Option 53, length 1: Discover
> Client-ID Option 61, length 7: ether 34:17:eb:e7:3f:a2
> Hostname Option 12, length 17: "bmc-DPT1852-0-0-2"
> Vendor-Class Option 60, length 11: "udhcp 1.8.2"
> MSZ Option 57, length 2: 576
> Parameter-Request Option 55, length 8:
> Subnet-Mask, Default-Gateway, Domain-Name-Server, Hostname
> Domain-Name, BR, NTP, Vendor-Option
> Agent-Information Option 82, length 35:
> Circuit-ID SubOption 1, length 23: ^A^Us18-ilo.r13.int.domai
> Remote-ID SubOption 2, length 8: ^@^FX^J M-fiM-^@
>
> What am i doing wrong?
>
> /Oskar Stenman
> _______________________________________________
> dhcp-users mailing list
> [hidden email]
> https://lists.isc.org/mailman/listinfo/dhcp-users

_______________________________________________
dhcp-users mailing list
[hidden email]
https://lists.isc.org/mailman/listinfo/dhcp-users

Oskar Stenman

Re: Option 82, no free leases

Haha!

Thank you!

I missed "override" in the configuration so cisco was appending circuit-id to the default.

And i mixed up ^A^U, thought tcpdump was printing the option id (hex 01) and string length (hex 15 for the new dump i did this morning, got another interface now) so i didn't look into that any deeper.

Turns out tcpdump removes option-id and string length when it decodes the message, so the actual option definition was:
01 17 01 15 s18-ilo.r3.int.domai

where 01 17 = option 1, string length 17 (dec 23)

and 01 15 = something that i can't get to match vlan-mod-port or anything else, also it's the same for all interfaces.

This time i will probably remember this.. (i've had it working for quite some time but it has seemed to break randomly)

If any of you manage one of the option-82 guides out there, please add that override is required to have the string be exactly as specified, I think i skimmed through all of them yesterday (even went as far as page 10 of google search results, my brain was about to implode..) and no one mentioned this.. :)

now:

interface GigabitEthernet1/0/1

description s1-ilo.r13.int.domai

ip dhcp snooping vlan 1 information option format-type circuit-id override string s1-ilo.r13.int.domai

was:

interface GigabitEthernet1/0/1

description s1-ilo.r13.int.domai

ip dhcp snooping vlan 1 information option format-type circuit-id string s1-ilo.r13.int.domai

/Oskar Stenman

On Fri, Feb 5, 2016 at 2:21 AM, Glenn Satchell <[hidden email]> wrote:

Hi Oskar

The tcpdump shows the true contents of the circuit-id option is
"^A^Us18-ilo.r13.int.domai" but you are trying to match against the string
"s18-ilo.r13.int.domai", so that's not equal.

So your match string needs to be "\000\025s18-ilo.r13.int.domai" where
control A is \000 in octal, and control U is \025 (I think I have that
right, you may need to check).

The format of strings is described in the dhcp-eval man page under the
heading "string".

regards,
-glenn

On Fri, February 5, 2016 9:40 am, Oskar Stenman wrote:
> Hi!
>
> I'm trying to get isc-dhcp-server 4.2.2 to give leases based only on the
> option-82 value. If we replace a host it should be plug and play, unplug
> old host, remove it, install new host, plug it in, and it should
> immediately get the same ip + boot the same pxe image as the old host
> without any further configuration of the host.
>
> I also tried 4.2.6 and 4.3.3-p1 which i built from source, i even added
> all
> debugging features i could find besides the one depending on dump_packet
> since compile breaks when adding that, Either way it's not giving any
> usefull information besides the extra output of "Not returning a lease."
>
> I have a subnet and hosts declared like this:
>
> subnet 10.1.13.0 netmask 255.255.255.0 {
> option routers 10.1.13.1;
> option broadcast-address 10.1.13.255;
> ddns-domainname "r13.int.domai";
> ddns-ttl 604800;
> option domain-name "r13.int.domai";
> option domain-name-servers 10.0.0.11, 10.0.0.12;
> next-server 10.0.0.10;
> option ntp-servers xx.yy.zz.63, xx.yy.zz.62, xx.yy.zz.61, xx.yy.zz.60,
> xx.yy.zz.59, xx.yy.zz.58;
> option pxelinux.pathprefix "/boot/debinstall/debmaint/";
> }
>
> group {
> host s1-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s1-ilo.r13.int.domai"; fixed-address 10.1.13.201; option host-name
> "s1-ilo"; ddns-hostname "s1-ilo";}
> host s2-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s2-ilo.r13.int.domai"; fixed-address 10.1.13.202; option host-name
> "s2-ilo"; ddns-hostname "s2-ilo";}
> host s3-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s3-ilo.r13.int.domai"; fixed-address 10.1.13.203; option host-name
> "s3-ilo"; ddns-hostname "s3-ilo";}
> host s4-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s4-ilo.r13.int.domai"; fixed-address 10.1.13.204; option host-name
> "s4-ilo"; ddns-hostname "s4-ilo";}
> host s5-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s5-ilo.r13.int.domai"; fixed-address 10.1.13.205; option host-name
> "s5-ilo"; ddns-hostname "s5-ilo";}
> host s6-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s6-ilo.r13.int.domai"; fixed-address 10.1.13.206; option host-name
> "s6-ilo"; ddns-hostname "s6-ilo";}
> host s7-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s7-ilo.r13.int.domai"; fixed-address 10.1.13.207; option host-name
> "s7-ilo"; ddns-hostname "s7-ilo";}
> host s8-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s8-ilo.r13.int.domai"; fixed-address 10.1.13.208; option host-name
> "s8-ilo"; ddns-hostname "s8-ilo";}
> host s9-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s9-ilo.r13.int.domai"; fixed-address 10.1.13.209; option host-name
> "s9-ilo"; ddns-hostname "s9-ilo";}
> host s10-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s10-ilo.r13.int.domai"; fixed-address 10.1.13.210; option host-name
> "s10-ilo"; ddns-hostname "s10-ilo";}
> host s11-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s11-ilo.r13.int.domai"; fixed-address 10.1.13.211; option host-name
> "s11-ilo"; ddns-hostname "s11-ilo";}
> host s12-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s12-ilo.r13.int.domai"; fixed-address 10.1.13.212; option host-name
> "s12-ilo"; ddns-hostname "s12-ilo";}
> host s13-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s13-ilo.r13.int.domai"; fixed-address 10.1.13.213; option host-name
> "s13-ilo"; ddns-hostname "s13-ilo";}
> host s14-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s14-ilo.r13.int.domai"; fixed-address 10.1.13.214; option host-name
> "s14-ilo"; ddns-hostname "s14-ilo";}
> host s15-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s15-ilo.r13.int.domai"; fixed-address 10.1.13.215; option host-name
> "s15-ilo"; ddns-hostname "s15-ilo";}
> host s16-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s16-ilo.r13.int.domai"; fixed-address 10.1.13.216; option host-name
> "s16-ilo"; ddns-hostname "s16-ilo";}
> host s17-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s17-ilo.r13.int.domai"; fixed-address 10.1.13.217; option host-name
> "s17-ilo"; ddns-hostname "s17-ilo";}
> host s18-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s18-ilo.r13.int.domai"; fixed-address 10.1.13.218; option host-name
> "s18-ilo"; ddns-hostname "s18-ilo";}
> host s19-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s19-ilo.r13.int.domai"; fixed-address 10.1.13.219; option host-name
> "s19-ilo"; ddns-hostname "s19-ilo";}
> host s20-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s20-ilo.r13.int.domai"; fixed-address 10.1.13.220; option host-name
> "s20-ilo"; ddns-hostname "s20-ilo";}
> host s21-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s21-ilo.r13.int.domai"; fixed-address 10.1.13.221; option host-name
> "s21-ilo"; ddns-hostname "s21-ilo";}
> host s22-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s22-ilo.r13.int.domai"; fixed-address 10.1.13.222; option host-name
> "s22-ilo"; ddns-hostname "s22-ilo";}
> host s23-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s23-ilo.r13.int.domai"; fixed-address 10.1.13.223; option host-name
> "s23-ilo"; ddns-hostname "s23-ilo";}
> host s24-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s24-ilo.r13.int.domai"; fixed-address 10.1.13.224; option host-name
> "s24-ilo"; ddns-hostname "s24-ilo";}
> host s25-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s25-ilo.r13.int.domai"; fixed-address 10.1.13.225; option host-name
> "s25-ilo"; ddns-hostname "s25-ilo";}
> host s26-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s26-ilo.r13.int.domai"; fixed-address 10.1.13.226; option host-name
> "s26-ilo"; ddns-hostname "s26-ilo";}
> host s27-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s27-ilo.r13.int.domai"; fixed-address 10.1.13.227; option host-name
> "s27-ilo"; ddns-hostname "s27-ilo";}
> host s28-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s28-ilo.r13.int.domai"; fixed-address 10.1.13.228; option host-name
> "s28-ilo"; ddns-hostname "s28-ilo";}
> host s29-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s29-ilo.r13.int.domai"; fixed-address 10.1.13.229; option host-name
> "s29-ilo"; ddns-hostname "s29-ilo";}
> host s30-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s30-ilo.r13.int.domai"; fixed-address 10.1.13.230; option host-name
> "s30-ilo"; ddns-hostname "s30-ilo";}
> host s31-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s31-ilo.r13.int.domai"; fixed-address 10.1.13.231; option host-name
> "s31-ilo"; ddns-hostname "s31-ilo";}
> host s32-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s32-ilo.r13.int.domai"; fixed-address 10.1.13.232; option host-name
> "s32-ilo"; ddns-hostname "s32-ilo";}
> host s33-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s33-ilo.r13.int.domai"; fixed-address 10.1.13.233; option host-name
> "s33-ilo"; ddns-hostname "s33-ilo";}
> host s34-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s34-ilo.r13.int.domai"; fixed-address 10.1.13.234; option host-name
> "s34-ilo"; ddns-hostname "s34-ilo";}
> host s35-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s35-ilo.r13.int.domai"; fixed-address 10.1.13.235; option host-name
> "s35-ilo"; ddns-hostname "s35-ilo";}
> host s36-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s36-ilo.r13.int.domai"; fixed-address 10.1.13.236; option host-name
> "s36-ilo"; ddns-hostname "s36-ilo";}
> host s37-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s37-ilo.r13.int.domai"; fixed-address 10.1.13.237; option host-name
> "s37-ilo"; ddns-hostname "s37-ilo";}
> host s38-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s38-ilo.r13.int.domai"; fixed-address 10.1.13.238; option host-name
> "s38-ilo"; ddns-hostname "s38-ilo";}
> host s39-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s39-ilo.r13.int.domai"; fixed-address 10.1.13.239; option host-name
> "s39-ilo"; ddns-hostname "s39-ilo";}
> host s40-ilo.r13.int.domai { host-identifier option agent.circuit-id
> "s40-ilo.r13.int.domai"; fixed-address 10.1.13.240; option host-name
> "s40-ilo"; ddns-hostname "s40-ilo";}
> }
>
>
> And all i get in the log is:
> 2016-02-04T18:35:48.124024+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:52 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:<a href="tel:48.124055" value="+4748124055">48.124055+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:52 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:<a href="tel:48.240046" value="+4748240046">48.240046+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:47:1c via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:<a href="tel:48.240152" value="+4748240152">48.240152+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:47:1c via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:<a href="tel:48.799417" value="+4748799417">48.799417+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:00:ef via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:<a href="tel:48.799508" value="+4748799508">48.799508+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:00:ef via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:<a href="tel:48.920182" value="+4748920182">48.920182+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:3f:6f via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:<a href="tel:48.920432" value="+4748920432">48.920432+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:3f:6f via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.125385+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:1f via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.125487+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:1f via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.343455+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:42:8d via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.343487+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:42:8d via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.461783+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:49 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.461815+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:49 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.617856+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:01 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.617888+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:01 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.654026+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:0a via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.654059+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:0a via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.666002+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:41:97 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.666146+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:41:97 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.773406+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:46 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.773655+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:46 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.826255+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:4f via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:49.826330+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:4f via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:50.257486+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:42:cc via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:50.257518+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:42:cc via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:50.273982+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:31 via 10.1.13.2: network 10.1.13.0/24: no free leases
> 2016-02-04T18:35:50.274015+00:00 dhcphost dhcpd: DHCPDISCOVER from
> 34:17:eb:e7:01:31 via 10.1.13.2: network 10.1.13.0/24: no free leases
>
> For some reason dhcpd "refuses" to match on agent.circuit-id.
> I've tried:
> range 10.1.13.201 10.1.13.240 -> random assignments from the range.
>
> pool {
> range 10.1.13.201 10.1.13.240
> } -> random assignments
>
> pool {
> range 10.1.13.150 10.1.13.153
> } -> 3 random assignments
>
> + all possible combinations of deny unknown-clients, allow known-clients
> and similar to these that i could think of, nothing works. either no ip is
> assigned, or all of them are assigned random ip's..
>
> tcpdump shows the circuit-id:
> 22:22:16.595500 IP (tos 0x0, ttl 255, id 11344, offset 0, flags [none],
> proto UDP (17), length 364)
> 10.1.13.2.67 > 10.0.0.11.67: [udp sum ok] BOOTP/DHCP, Request from
> 34:17:eb:e7:3f:a2, length 336, hops 1, xid 0xc95ed144, Flags [none]
> (0x0000)
> Gateway-IP 10.1.13.2
> Client-Ethernet-Address 34:17:eb:e7:3f:a2
> Vendor-rfc1048 Extensions
> Magic Cookie 0x63825363
> DHCP-Message Option 53, length 1: Discover
> Client-ID Option 61, length 7: ether 34:17:eb:e7:3f:a2
> Hostname Option 12, length 17: "bmc-DPT1852-0-0-2"
> Vendor-Class Option 60, length 11: "udhcp 1.8.2"
> MSZ Option 57, length 2: 576
> Parameter-Request Option 55, length 8:
> Subnet-Mask, Default-Gateway, Domain-Name-Server, Hostname
> Domain-Name, BR, NTP, Vendor-Option
> Agent-Information Option 82, length 35:
> Circuit-ID SubOption 1, length 23: ^A^Us18-ilo.r13.int.domai
> Remote-ID SubOption 2, length 8: ^@^FX^J M-fiM-^@
>
> What am i doing wrong?
>
> /Oskar Stenman
> _______________________________________________
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Oskar Stenman

Network Architect

Magine TV

[hidden email] | Mob: +46 70 565 21 52

Grev Turegatan 3 | 114 46 Stockholm, Sweden | www.magine.com

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