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Friesen, Don MTIC:EX

DRP server startup

We run a failover configuration. We have a second set of servers at a DRP site. All our relays have all four addresses configured. The DRP servers are configured to not start the daemon on reboot. Or at least they should have been. The server that was secondary at the DRP site was not properly configured. On a reboot the daemon started. To my surprise, it served nothing.

I checked the configuration and it is configured to serve. It has a copy of the lease data from the production pair. The startup log follows.

Is the reason it served nothing that it is the declared secondary server in the failover and the primary was never started?

Wed Nov 25 00:01:00 2015: Internet Systems Consortium DHCP Server 4.3.3

Wed Nov 25 00:01:00 2015: For info, please visit https://www.isc.org/software/dhcp/

Wed Nov 25 00:01:01 2015: Config file: /var/dhcp/dhcpd.conf

Wed Nov 25 00:01:01 2015: Database file: /var/dhcp/db/dhcpd.leases

Wed Nov 25 00:01:01 2015: PID file: /var/run/dhcpd.pid

Wed Nov 25 00:01:04 2015: lease 10.23.218.165: no subnet.

Wed Nov 25 00:01:04 2015: lease 10.23.218.157: no subnet.

Wed Nov 25 00:01:05 2015: Wrote 0 class decls to leases file.

Wed Nov 25 00:01:05 2015: Wrote 0 deleted host decls to leases file.

Wed Nov 25 00:01:05 2015: Wrote 0 new dynamic host decls to leases file.

Wed Nov 25 00:01:07 2015: Wrote 107752 leases to leases file.

Wed Nov 25 00:01:07 2015:

Wed Nov 25 00:01:07 2015: No subnet declaration for vnet3 (172.28.8.77).

Wed Nov 25 00:01:07 2015: ** Ignoring requests on vnet3. If this is not what

Wed Nov 25 00:01:07 2015: you want, please write a subnet declaration

Wed Nov 25 00:01:07 2015: in your dhcpd.conf file for the network segment

Wed Nov 25 00:01:07 2015: to which interface vnet3 is attached. **

Wed Nov 25 00:01:07 2015:

Wed Nov 25 00:01:07 2015: No subnet declaration for vnet2 (172.28.169.21).

Wed Nov 25 00:01:07 2015: ** Ignoring requests on vnet2. If this is not what

Wed Nov 25 00:01:07 2015: you want, please write a subnet declaration

Wed Nov 25 00:01:07 2015: in your dhcpd.conf file for the network segment

Wed Nov 25 00:01:07 2015: to which interface vnet2 is attached. **

Wed Nov 25 00:01:07 2015:

Wed Nov 25 00:01:07 2015: No subnet declaration for vnet1 (0.0.0.0).

Wed Nov 25 00:01:07 2015: ** Ignoring requests on vnet1. If this is not what

Wed Nov 25 00:01:07 2015: you want, please write a subnet declaration

Wed Nov 25 00:01:07 2015: in your dhcpd.conf file for the network segment

Wed Nov 25 00:01:07 2015: to which interface vnet1 is attached. **

Wed Nov 25 00:01:07 2015:

Wed Nov 25 00:01:07 2015: Listening on DLPI/vnet0/00:14:4f:fb:01:01/10_34_43_0

Wed Nov 25 00:01:07 2015: Sending on DLPI/vnet0/00:14:4f:fb:01:01/10_34_43_0

Wed Nov 25 00:01:07 2015: Sending on Socket/fallback/fallback-net

Wed Nov 25 00:01:07 2015: failover peer PoBCdhcp: I move from communications-interrupted to startup

Wed Nov 25 00:01:07 2015: Server starting service.

Wed Nov 25 00:01:22 2015: failover peer PoBCdhcp: I move from startup to communications-interrupted

Wed Nov 25 01:05:34 2015: Wrote 0 class decls to leases file.

Wed Nov 25 01:05:34 2015: Wrote 0 deleted host decls to leases file.

Wed Nov 25 01:05:34 2015: Wrote 0 new dynamic host decls to leases file.

Wed Nov 25 01:05:36 2015: Wrote 107752 leases to leases file.

Wed Nov 25 02:11:52 2015: Wrote 0 class decls to leases file.

Wed Nov 25 02:11:52 2015: Wrote 0 deleted host decls to leases file.

Wed Nov 25 02:11:52 2015: Wrote 0 new dynamic host decls to leases file.

Wed Nov 25 02:11:53 2015: Wrote 107752 leases to leases file.

Don Friesen

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glenn.satchell

Re: DRP server startup

Perhaps, because it is at a far away site the reply from the server took
much longer to get back to the client and the client therefore selected
one of the closer servers?

I wouldn't like to rely on this behaviour though, so best to configure it
properly :)

regards,
-glenn

On Thu, November 26, 2015 1:34 am, Friesen, Don MTIC:EX wrote:

>
> We run a failover configuration. We have a second set of servers at a
> DRP site. All our relays have all four addresses configured. The DRP
> servers are configured to not start the daemon on reboot. Or at least
> they should have been. The server that was secondary at the DRP site
> was not properly configured. On a reboot the daemon started. To my
> surprise, it served nothing.
>
> I checked the configuration and it is configured to serve. It has a
> copy of the lease data from the production pair. The startup log
> follows.
>
> Is the reason it served nothing that it is the declared secondary
> server in the failover and the primary was never started?
>
> Wed Nov 25 00:01:00 2015: Internet Systems Consortium DHCP Server 4.3.3
> Wed Nov 25 00:01:00 2015: Copyright 2004-2015 Internet Systems Consortium.
> Wed Nov 25 00:01:00 2015: All rights reserved.
> Wed Nov 25 00:01:00 2015: For info, please visit
> https://www.isc.org/software/dhcp/
> Wed Nov 25 00:01:01 2015: Config file: /var/dhcp/dhcpd.conf
> Wed Nov 25 00:01:01 2015: Database file: /var/dhcp/db/dhcpd.leases
> Wed Nov 25 00:01:01 2015: PID file: /var/run/dhcpd.pid
> Wed Nov 25 00:01:04 2015: lease 10.23.218.165: no subnet.
> Wed Nov 25 00:01:04 2015: lease 10.23.218.157: no subnet.
> Wed Nov 25 00:01:05 2015: Wrote 0 class decls to leases file.
> Wed Nov 25 00:01:05 2015: Wrote 0 deleted host decls to leases file.
> Wed Nov 25 00:01:05 2015: Wrote 0 new dynamic host decls to leases file.
> Wed Nov 25 00:01:07 2015: Wrote 107752 leases to leases file.
> Wed Nov 25 00:01:07 2015:
> Wed Nov 25 00:01:07 2015: No subnet declaration for vnet3 (172.28.8.77).
> Wed Nov 25 00:01:07 2015: ** Ignoring requests on vnet3. If this is not
> what
> Wed Nov 25 00:01:07 2015: you want, please write a subnet declaration
> Wed Nov 25 00:01:07 2015: in your dhcpd.conf file for the network
> segment
> Wed Nov 25 00:01:07 2015: to which interface vnet3 is attached. **
> Wed Nov 25 00:01:07 2015:
> Wed Nov 25 00:01:07 2015:
> Wed Nov 25 00:01:07 2015: No subnet declaration for vnet2 (172.28.169.21).
> Wed Nov 25 00:01:07 2015: ** Ignoring requests on vnet2. If this is not
> what
> Wed Nov 25 00:01:07 2015: you want, please write a subnet declaration
> Wed Nov 25 00:01:07 2015: in your dhcpd.conf file for the network
> segment
> Wed Nov 25 00:01:07 2015: to which interface vnet2 is attached. **
> Wed Nov 25 00:01:07 2015:
> Wed Nov 25 00:01:07 2015:
> Wed Nov 25 00:01:07 2015: No subnet declaration for vnet1 (0.0.0.0).
> Wed Nov 25 00:01:07 2015: ** Ignoring requests on vnet1. If this is not
> what
> Wed Nov 25 00:01:07 2015: you want, please write a subnet declaration
> Wed Nov 25 00:01:07 2015: in your dhcpd.conf file for the network
> segment
> Wed Nov 25 00:01:07 2015: to which interface vnet1 is attached. **
> Wed Nov 25 00:01:07 2015:
> Wed Nov 25 00:01:07 2015: Listening on
> DLPI/vnet0/00:14:4f:fb:01:01/10_34_43_0
> Wed Nov 25 00:01:07 2015: Sending on
> DLPI/vnet0/00:14:4f:fb:01:01/10_34_43_0
> Wed Nov 25 00:01:07 2015: Sending on Socket/fallback/fallback-net
> Wed Nov 25 00:01:07 2015: failover peer PoBCdhcp: I move from
> communications-interrupted to startup
> Wed Nov 25 00:01:07 2015: Server starting service.
> Wed Nov 25 00:01:22 2015: failover peer PoBCdhcp: I move from startup to
> communications-interrupted
> Wed Nov 25 01:05:34 2015: Wrote 0 class decls to leases file.
> Wed Nov 25 01:05:34 2015: Wrote 0 deleted host decls to leases file.
> Wed Nov 25 01:05:34 2015: Wrote 0 new dynamic host decls to leases file.
> Wed Nov 25 01:05:36 2015: Wrote 107752 leases to leases file.
> Wed Nov 25 02:11:52 2015: Wrote 0 class decls to leases file.
> Wed Nov 25 02:11:52 2015: Wrote 0 deleted host decls to leases file.
> Wed Nov 25 02:11:52 2015: Wrote 0 new dynamic host decls to leases file.
> Wed Nov 25 02:11:53 2015: Wrote 107752 leases to leases file.
>
> Don Friesen
> _______________________________________________
> dhcp-users mailing list
> [hidden email]
> https://lists.isc.org/mailman/listinfo/dhcp-users

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Friesen, Don MTIC:EX

RE: DRP server startup

No. The log shows it receiving nothing. The prod servers log a lot of inbound traffic, and any offers they make. This server logged nothing at all. Which I find odd.

Don Friesen

-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of Glenn Satchell
Sent: Wednesday, November 25, 2015 7:11 AM
To: Users of ISC DHCP
Subject: Re: DRP server startup

Perhaps, because it is at a far away site the reply from the server took much longer to get back to the client and the client therefore selected one of the closer servers?

I wouldn't like to rely on this behaviour though, so best to configure it properly :)

regards,
-glenn

On Thu, November 26, 2015 1:34 am, Friesen, Don MTIC:EX wrote:

>
> We run a failover configuration. We have a second set of servers
> at a DRP site. All our relays have all four addresses configured.
> The DRP servers are configured to not start the daemon on reboot. Or
> at least they should have been. The server that was secondary at the
> DRP site was not properly configured. On a reboot the daemon started.
> To my surprise, it served nothing.
>
> I checked the configuration and it is configured to serve. It has
> a copy of the lease data from the production pair. The startup log
> follows.
>
> Is the reason it served nothing that it is the declared secondary
> server in the failover and the primary was never started?
>
> Wed Nov 25 00:01:00 2015: Internet Systems Consortium DHCP Server
> 4.3.3 Wed Nov 25 00:01:00 2015: Copyright 2004-2015 Internet Systems Consortium.
> Wed Nov 25 00:01:00 2015: All rights reserved.
> Wed Nov 25 00:01:00 2015: For info, please visit
> https://www.isc.org/software/dhcp/
> Wed Nov 25 00:01:01 2015: Config file: /var/dhcp/dhcpd.conf Wed Nov 25
> 00:01:01 2015: Database file: /var/dhcp/db/dhcpd.leases Wed Nov 25
> 00:01:01 2015: PID file: /var/run/dhcpd.pid Wed Nov 25 00:01:04 2015:
> lease 10.23.218.165: no subnet.
> Wed Nov 25 00:01:04 2015: lease 10.23.218.157: no subnet.
> Wed Nov 25 00:01:05 2015: Wrote 0 class decls to leases file.
> Wed Nov 25 00:01:05 2015: Wrote 0 deleted host decls to leases file.
> Wed Nov 25 00:01:05 2015: Wrote 0 new dynamic host decls to leases file.
> Wed Nov 25 00:01:07 2015: Wrote 107752 leases to leases file.
> Wed Nov 25 00:01:07 2015:
> Wed Nov 25 00:01:07 2015: No subnet declaration for vnet3 (172.28.8.77).
> Wed Nov 25 00:01:07 2015: ** Ignoring requests on vnet3. If this is
> not what
> Wed Nov 25 00:01:07 2015: you want, please write a subnet declaration
> Wed Nov 25 00:01:07 2015: in your dhcpd.conf file for the network
> segment
> Wed Nov 25 00:01:07 2015: to which interface vnet3 is attached. **
> Wed Nov 25 00:01:07 2015:
> Wed Nov 25 00:01:07 2015:
> Wed Nov 25 00:01:07 2015: No subnet declaration for vnet2 (172.28.169.21).
> Wed Nov 25 00:01:07 2015: ** Ignoring requests on vnet2. If this is
> not what
> Wed Nov 25 00:01:07 2015: you want, please write a subnet declaration
> Wed Nov 25 00:01:07 2015: in your dhcpd.conf file for the network
> segment
> Wed Nov 25 00:01:07 2015: to which interface vnet2 is attached. **
> Wed Nov 25 00:01:07 2015:
> Wed Nov 25 00:01:07 2015:
> Wed Nov 25 00:01:07 2015: No subnet declaration for vnet1 (0.0.0.0).
> Wed Nov 25 00:01:07 2015: ** Ignoring requests on vnet1. If this is
> not what
> Wed Nov 25 00:01:07 2015: you want, please write a subnet declaration
> Wed Nov 25 00:01:07 2015: in your dhcpd.conf file for the network
> segment
> Wed Nov 25 00:01:07 2015: to which interface vnet1 is attached. **
> Wed Nov 25 00:01:07 2015:
> Wed Nov 25 00:01:07 2015: Listening on
> DLPI/vnet0/00:14:4f:fb:01:01/10_34_43_0
> Wed Nov 25 00:01:07 2015: Sending on
> DLPI/vnet0/00:14:4f:fb:01:01/10_34_43_0
> Wed Nov 25 00:01:07 2015: Sending on Socket/fallback/fallback-net
> Wed Nov 25 00:01:07 2015: failover peer PoBCdhcp: I move from
> communications-interrupted to startup Wed Nov 25 00:01:07 2015: Server
> starting service.
> Wed Nov 25 00:01:22 2015: failover peer PoBCdhcp: I move from startup
> to communications-interrupted Wed Nov 25 01:05:34 2015: Wrote 0 class
> decls to leases file.
> Wed Nov 25 01:05:34 2015: Wrote 0 deleted host decls to leases file.
> Wed Nov 25 01:05:34 2015: Wrote 0 new dynamic host decls to leases file.
> Wed Nov 25 01:05:36 2015: Wrote 107752 leases to leases file.
> Wed Nov 25 02:11:52 2015: Wrote 0 class decls to leases file.
> Wed Nov 25 02:11:52 2015: Wrote 0 deleted host decls to leases file.
> Wed Nov 25 02:11:52 2015: Wrote 0 new dynamic host decls to leases file.
> Wed Nov 25 02:11:53 2015: Wrote 107752 leases to leases file.
>
> Don Friesen
> _______________________________________________
> dhcp-users mailing list
> [hidden email]
> https://lists.isc.org/mailman/listinfo/dhcp-users

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Bob Harold

Re: DRP server startup

On Wed, Nov 25, 2015 at 10:25 AM, Friesen, Don MTIC:EX <[hidden email]> wrote:

No. The log shows it receiving nothing. The prod servers log a lot of inbound traffic, and any offers they make. This server logged nothing at all. Which I find odd.

Don Friesen

-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of Glenn Satchell
Sent: Wednesday, November 25, 2015 7:11 AM
To: Users of ISC DHCP
Subject: Re: DRP server startup

Perhaps, because it is at a far away site the reply from the server took much longer to get back to the client and the client therefore selected one of the closer servers?

I wouldn't like to rely on this behaviour though, so best to configure it properly :)

regards,
-glenn

On Thu, November 26, 2015 1:34 am, Friesen, Don MTIC:EX wrote:
>
> We run a failover configuration. We have a second set of servers
> at a DRP site. All our relays have all four addresses configured.
> The DRP servers are configured to not start the daemon on reboot. Or
> at least they should have been. The server that was secondary at the
> DRP site was not properly configured. On a reboot the daemon started.
> To my surprise, it served nothing.
>
> I checked the configuration and it is configured to serve. It has
> a copy of the lease data from the production pair. The startup log
> follows.
>
> Is the reason it served nothing that it is the declared secondary
> server in the failover and the primary was never started?
>
> Wed Nov 25 00:01:00 2015: Internet Systems Consortium DHCP Server
> 4.3.3 Wed Nov 25 00:01:00 2015: Copyright 2004-2015 Internet Systems Consortium.
> Wed Nov 25 00:01:00 2015: All rights reserved.
> Wed Nov 25 00:01:00 2015: For info, please visit
> https://www.isc.org/software/dhcp/
> Wed Nov 25 00:01:01 2015: Config file: /var/dhcp/dhcpd.conf Wed Nov 25
> 00:01:01 2015: Database file: /var/dhcp/db/dhcpd.leases Wed Nov 25
> 00:01:01 2015: PID file: /var/run/dhcpd.pid Wed Nov 25 00:01:04 2015:
> lease 10.23.218.165: no subnet.
> Wed Nov 25 00:01:04 2015: lease 10.23.218.157: no subnet.
> Wed Nov 25 00:01:05 2015: Wrote 0 class decls to leases file.
> Wed Nov 25 00:01:05 2015: Wrote 0 deleted host decls to leases file.
> Wed Nov 25 00:01:05 2015: Wrote 0 new dynamic host decls to leases file.
> Wed Nov 25 00:01:07 2015: Wrote 107752 leases to leases file.
> Wed Nov 25 00:01:07 2015:
> Wed Nov 25 00:01:07 2015: No subnet declaration for vnet3 (172.28.8.77).
> Wed Nov 25 00:01:07 2015: ** Ignoring requests on vnet3. If this is
> not what
> Wed Nov 25 00:01:07 2015: you want, please write a subnet declaration
> Wed Nov 25 00:01:07 2015: in your dhcpd.conf file for the network
> segment
> Wed Nov 25 00:01:07 2015: to which interface vnet3 is attached. **
> Wed Nov 25 00:01:07 2015:
> Wed Nov 25 00:01:07 2015:
> Wed Nov 25 00:01:07 2015: No subnet declaration for vnet2 (172.28.169.21).
> Wed Nov 25 00:01:07 2015: ** Ignoring requests on vnet2. If this is
> not what
> Wed Nov 25 00:01:07 2015: you want, please write a subnet declaration
> Wed Nov 25 00:01:07 2015: in your dhcpd.conf file for the network
> segment
> Wed Nov 25 00:01:07 2015: to which interface vnet2 is attached. **
> Wed Nov 25 00:01:07 2015:
> Wed Nov 25 00:01:07 2015:
> Wed Nov 25 00:01:07 2015: No subnet declaration for vnet1 (0.0.0.0).
> Wed Nov 25 00:01:07 2015: ** Ignoring requests on vnet1. If this is
> not what
> Wed Nov 25 00:01:07 2015: you want, please write a subnet declaration
> Wed Nov 25 00:01:07 2015: in your dhcpd.conf file for the network
> segment
> Wed Nov 25 00:01:07 2015: to which interface vnet1 is attached. **
> Wed Nov 25 00:01:07 2015:
> Wed Nov 25 00:01:07 2015: Listening on
> DLPI/vnet0/00:14:4f:fb:01:01/10_34_43_0
> Wed Nov 25 00:01:07 2015: Sending on
> DLPI/vnet0/00:14:4f:fb:01:01/10_34_43_0
> Wed Nov 25 00:01:07 2015: Sending on Socket/fallback/fallback-net
> Wed Nov 25 00:01:07 2015: failover peer PoBCdhcp: I move from
> communications-interrupted to startup Wed Nov 25 00:01:07 2015: Server
> starting service.
> Wed Nov 25 00:01:22 2015: failover peer PoBCdhcp: I move from startup
> to communications-interrupted Wed Nov 25 01:05:34 2015: Wrote 0 class
> decls to leases file.
> Wed Nov 25 01:05:34 2015: Wrote 0 deleted host decls to leases file.
> Wed Nov 25 01:05:34 2015: Wrote 0 new dynamic host decls to leases file.
> Wed Nov 25 01:05:36 2015: Wrote 107752 leases to leases file.
> Wed Nov 25 02:11:52 2015: Wrote 0 class decls to leases file.
> Wed Nov 25 02:11:52 2015: Wrote 0 deleted host decls to leases file.
> Wed Nov 25 02:11:52 2015: Wrote 0 new dynamic host decls to leases file.
> Wed Nov 25 02:11:53 2015: Wrote 107752 leases to leases file.
>
> Don Friesen

Note that the DRP won't see renew packets, because those are usually unicast to one DHCP server. They will only see broadcast packets. If there are no 'new' clients, there might not be any. If a new client (or release/renew, depending on the client) does not show up, then I would suggest tracing packets to be sure that discover packets are reaching the DRP servers.

--

Bob Harold

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Friesen, Don MTIC:EX

RE: DRP server startup

Bob Harold

I have snooped the interface, and see traffic arriving.

I think this Saturday I may do a DRP test of the Primary. I was wondering if this was a feature of a Secondary server in a pair, that it would do nothing until it has at least established a first connection to the Primary.

Don Friesen

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José Queiroz

Re: DRP server startup

2015-11-25 14:47 GMT-02:00 Friesen, Don MTIC:EX <[hidden email]>:

Note that the DRP won't see renew packets, because those are usually unicast to one DHCP server. They will only see broadcast packets. If there are no 'new' clients, there might not be any. If a new client (or release/renew, depending on the client) does not show up, then I would suggest tracing packets to be sure that discover packets are reaching the DRP servers.

--

Bob Harold

I have snooped the interface, and see traffic arriving.

Just a clarification... which interface are you inspecting? vnet0, vnet1, vnet2, vnet3?

And what is the destination address of the traffic that you see? Is it unicast or broadcast?

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Friesen, Don MTIC:EX

RE: DRP server startup

Snooping vnet0 I see relayed traffic that the relay has forwarded to the server. We do not run local traffic, so the servers will never directly see broadcasts. Since this server is not production and has never served out any addresses, the remote clients will not be unicasting to it. The relays will convert all broadcast to unicast and forward to the server list. Since it retains the full list of 105000+ leases, the configuration for those networks is understood, otherwise it would flush the lease database.

I don’t think I’ll know more until I get a chance to turn up both DRP servers as a paired set and watch them converge.

Don Friesen

From: [hidden email] [mailto:[hidden email]] On Behalf Of José Queiroz
Sent: Wednesday, November 25, 2015 9:17 AM
To: Users of ISC DHCP
Subject: Re: DRP server startup

Just a clarification... which interface are you inspecting? vnet0, vnet1, vnet2, vnet3?

And what is the destination address of the traffic that you see? Is it unicast or broadcast?

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José Queiroz

Re: DRP server startup

2015-11-25 16:07 GMT-02:00 Friesen, Don MTIC:EX <[hidden email]>:

Snooping vnet0 I see relayed traffic that the relay has forwarded to the server. We do not run local traffic, so the servers will never directly see broadcasts. Since this server is not production and has never served out any addresses, the remote clients will not be unicasting to it. The relays will convert all broadcast to unicast and forward to the server list. Since it retains the full list of 105000+ leases, the configuration for those networks is understood, otherwise it would flush the lease database.

Are you seeing this server's address in the address list?

Are you sure that the requests are coming in the only active interface (vnet0), and not in one of the others (vnet1-3)?

I don’t think I’ll know more until I get a chance to turn up both DRP servers as a paired set and watch them converge.

I believe that even when a secondary DHCP server comes up without it's primary peer, it should work immediatelly, as long as the working prerequisites are met (configure interfaces, configured subnets, configured pools).

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Friesen, Don MTIC:EX

RE: DRP server startup

From: [hidden email] [mailto:[hidden email]] On Behalf Of José Queiroz
Sent: Wednesday, November 25, 2015 11:36 AM
To: Users of ISC DHCP
Subject: Re: DRP server startup

>Are you seeing this server's address in the address list?

Yes

>Are you sure that the requests are coming in the only active interface (vnet0), and not in one of the others (vnet1-3)?

Yes

>I believe that even when a secondary DHCP server comes up without it's primary peer, it should work immediatelly, as long as the working prerequisites are met (configure interfaces, configured subnets, configured pools).

Experimentation Saturday, and I’ll see. This is what I thought too.

Don Friesen

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José Queiroz

Re: DRP server startup

2015-11-25 17:44 GMT-02:00 Friesen, Don MTIC:EX <[hidden email]>:

From: [hidden email] [mailto:[hidden email]] On Behalf Of José Queiroz
Sent: Wednesday, November 25, 2015 11:36 AM
To: Users of ISC DHCP
Subject: Re: DRP server startup

>Are you seeing this server's address in the address list?

Yes

>Are you sure that the requests are coming in the only active interface (vnet0), and not in one of the others (vnet1-3)?

Yes

And what about the address of the relay server (IGWADDR), does it correspond to one of the configured subnets from this server? Even if it doesn´t have an active pool?

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Friesen, Don MTIC:EX

RE: DRP server startup

From: [hidden email] [mailto:[hidden email]] On Behalf Of José Queiroz
Sent: Wednesday, November 25, 2015 12:26 PM
To: Users of ISC DHCP
Subject: Re: DRP server startup

>And what about the address of the relay server (IGWADDR), does it correspond to one of the configured subnets from this server? Even if it doesn´t have an active pool?

Also yes. It all checks out. Thanks for the replies.

Don Friesen

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