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How to query for available / used ip

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Leandro

How to query for available / used ip

Hello Guys , I would like to plot the function of my dhcpd server on
cacti graph.
I want to know ir is there any recommended way to ask a running dhcp
server how many ips were granted and how many are available ?
Regards ,
Leandro.

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Gero Palacio

Re: How to query for available / used ip

Hi Leandro,

You'll probably want an answer with someone with more experience but I'm inclined to think that the only way to do this is by parsing the contents of the dhcpd.leases file. I don't think you could do it using the omshell, but I might be a good idea to check out omapi.

Good luck,
Geronimo.

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Simon Hobson

Re: How to query for available / used ip

In reply to this post by Leandro

Leandro <[hidden email]> wrote:

> Hello Guys , I would like to plot the function of my dhcpd server on cacti graph.
> I want to know ir is there any recommended way to ask a running dhcp server how many ips were granted and how many are available ?

Check out dhcp-pool
As well as a command line tool, it has a munin plugin component. In principle it shouldn't be too hard to get it to update an RRD but I haven't got that far yet. As a command line tool it will give you information like this :

Subnet 192.168.7.0/24
--------------------------------------------------

1. Pool "WiFi":

Monitoring: ON
Warning limit: 75%
Critical limit: 90%
Active leases: 22/91 (24.2%)

While the Munin plugin will give you output like this :

$ dhcpd-munin_192.168.7.0_24_1
active.value 22
warning.value 68.2
critical.value 81.9
max.value 91

I figure the latter should be parseable into something that can be fed into Nagios and Cacti

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Dmitry Vayntrub

RE: How to query for available / used ip

You might also look at dhcpd-pools
http://dhcpd-pools.sourceforge.net/

It is really fast (written in C ), and the output is easy to parse, as well as present as a web page if you would like to.
Here is an example of the text mode output:
[root@ns1 dhcp]# dhcpd-pools
Ranges:
shared net name first ip last ip max cur percent touch t+c t+c perc bu bu perc
sfs-wifi-dhcp-10_143_010.143.0.16 - 10.143.15.254 4079 16 0.392 860 876 21.476 2037 49.939
sfs-wifi-dhcp-10_143_1610.143.16.16 - 10.143.31.254 4079 17 0.417 934 951 23.315 2034 49.865
sfs-wifi-dhcp-10_143_3210.143.32.16 - 10.143.47.254 4079 18 0.441 830 848 20.789 2033 49.841
sfs-wifi-dhcp-10_143_4810.143.48.16 - 10.143.63.254 4079 21 0.515 934 955 23.413 2034 49.865
sfs-wifi-dhcp-10_143_6410.143.64.16 - 10.143.79.254 4079 27 0.662 876 903 22.138 2031 49.792
sfs-wifi-dhcp-10_143_8010.143.80.16 - 10.143.95.254 4079 17 0.417 906 923 22.628 2038 49.963
sfs-wifi-dhcp-10_143_9610.143.96.16 - 10.143.111.254 4079 17 0.417 922 939 23.020 2037 49.939
sfs-wifi-dhcp-10_143_11210.143.112.16 - 10.143.127.254 4079 17 0.417 922 939 23.020 1578 38.686
sfs-wifi-dhcp-10_143_12810.143.128.16 - 10.143.143.254 4079 17 0.417 923 940 23.045 0 0.000
sfs-wifi-dhcp-10_143_14410.143.144.16 - 10.143.159.254 4079 22 0.539 944 966 23.682 0 0.000
sfs-wifi-dhcp-10_143_16010.143.160.16 - 10.143.175.254 4079 19 0.466 910 929 22.775 0 0.000
sfs-wifi-dhcp-10_143_17610.143.176.16 - 10.143.191.254 4079 23 0.564 930 953 23.364 0 0.000
sfs-wifi-dhcp-10_143_19210.143.192.16 - 10.143.207.254 4079 20 0.490 888 908 22.260 0 0.000
sfs-wifi-dhcp-10_143_20810.143.208.16 - 10.143.223.254 4079 16 0.392 883 899 22.040 0 0.000
sfs-wifi-dhcp-10_143_22410.143.224.16 - 10.143.239.254 4079 18 0.441 1085 1103 27.041 0 0.000
sfs-wifi-dhcp-10_143_24010.143.240.16 - 10.143.255.254 4079 18 0.441 882 900 22.064 0 0.000

Shared networks:
name max cur percent touch t+c t+c perc bu bu perc
sfs-wifi-dhcp-10_143_0 4079 16 0.392 860 876 21.476 2037 49.939
sfs-wifi-dhcp-10_143_16 4079 17 0.417 934 951 23.315 2034 49.865
sfs-wifi-dhcp-10_143_32 4079 18 0.441 830 848 20.789 2033 49.841
sfs-wifi-dhcp-10_143_48 4079 21 0.515 934 955 23.413 2034 49.865
sfs-wifi-dhcp-10_143_64 4079 27 0.662 876 903 22.138 2031 49.792
sfs-wifi-dhcp-10_143_80 4079 17 0.417 906 923 22.628 2038 49.963
sfs-wifi-dhcp-10_143_96 4079 17 0.417 922 939 23.020 2037 49.939
sfs-wifi-dhcp-10_143_112 4079 17 0.417 922 939 23.020 1578 38.686
sfs-wifi-dhcp-10_143_128 4079 17 0.417 923 940 23.045 0 0.000
sfs-wifi-dhcp-10_143_144 4079 22 0.539 944 966 23.682 0 0.000
sfs-wifi-dhcp-10_143_160 4079 19 0.466 910 929 22.775 0 0.000
sfs-wifi-dhcp-10_143_176 4079 23 0.564 930 953 23.364 0 0.000
sfs-wifi-dhcp-10_143_192 4079 20 0.490 888 908 22.260 0 0.000
sfs-wifi-dhcp-10_143_208 4079 16 0.392 883 899 22.040 0 0.000
sfs-wifi-dhcp-10_143_224 4079 18 0.441 1085 1103 27.041 0 0.000
sfs-wifi-dhcp-10_143_240 4079 18 0.441 882 900 22.064 0 0.000

[root@ns1 dhcp]# dhcpd-pools -help
Usage: dhcpd-pools [OPTIONS]
This is ISC dhcpd pools usage analyzer.

-c --config file path to the dhcpd.conf file
-l --leases file path to the dhcpd.leases file
-f --format [thc] output format
t for text
h for html table
H for full html page
c for comma separated values
-s --sort [nimcptTe] sort ranges by
n name
i IP
m maxium
c current
p percent
t touched
T t+c
e t+c perc
-r --reverse reverse order sort
-o --output file output into a file
-L --limit nr output limit mask 77 - 00
-v --version version information
-h --help this screen

Report bugs to <[hidden email]>

Thanks,
Dmitry Vayntrub
Systems Coordinator
Information Technology Services
San Francisco State University
(415)338-1909

-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of Simon Hobson
Sent: Saturday, June 20, 2015 5:07 AM
To: Users of ISC DHCP
Subject: Re: How to query for available / used ip

Leandro <[hidden email]> wrote:

> Hello Guys , I would like to plot the function of my dhcpd server on cacti graph.
> I want to know ir is there any recommended way to ask a running dhcp server how many ips were granted and how many are available ?

Check out dhcp-pool
As well as a command line tool, it has a munin plugin component. In principle it shouldn't be too hard to get it to update an RRD but I haven't got that far yet. As a command line tool it will give you information like this :

Subnet 192.168.7.0/24
--------------------------------------------------

1. Pool "WiFi":

Monitoring: ON
Warning limit: 75%
Critical limit: 90%
Active leases: 22/91 (24.2%)

While the Munin plugin will give you output like this :

$ dhcpd-munin_192.168.7.0_24_1
active.value 22
warning.value 68.2
critical.value 81.9
max.value 91

I figure the latter should be parseable into something that can be fed into Nagios and Cacti

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

Re: How to query for available / used ip

In reply to this post by Gero Palacio

Hello , Gero , thanks for your answer, could you please explain "check out omapi" I understand that omapi is the proprietary protocol for isc dhcp server clustering.
Does it have any framework or usefull tool ?
Thanks.
Leandro.

On 19/06/15 20:10, Gero Palacio wrote:

Hi Leandro,

You'll probably want an answer with someone with more experience but I'm inclined to think that the only way to do this is by parsing the contents of the dhcpd.leases file. I don't think you could do it using the omshell, but I might be a good idea to check out omapi.

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

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[hidden email]
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Gero Palacio

Re: How to query for available / used ip

Hi Leandro,

Actually OMAPI, as the name suggests, it's an API not a protocol. I thought you could use that API to query the servers but that's not the case. The only interactive way of querying the servers is using OMSHELL which is a shell for OMAPI.

Nevertheless it seems you already have the answer you were looking for.

Good luck!
Gerónimo.

On Mon, Jun 22, 2015 at 11:32 AM, Leandro <[hidden email]> wrote:

Hello , Gero , thanks for your answer, could you please explain "check out omapi" I understand that omapi is the proprietary protocol for isc dhcp server clustering.
Does it have any framework or usefull tool ?
Thanks.
Leandro.

On 19/06/15 20:10, Gero Palacio wrote:
Hi Leandro,

You'll probably want an answer with someone with more experience but I'm inclined to think that the only way to do this is by parsing the contents of the dhcpd.leases file. I don't think you could do it using the omshell, but I might be a good idea to check out omapi.

Good luck,
Geronimo.

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[hidden email]
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[hidden email]
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Leandro

Re: How to query for available / used ip

In reply to this post by Dmitry Vayntrub

Dear Dmitry:
After you suggest to try dhcpd-pools I have been trying to compile it
but could not success.
Im having problems after running ./configure.
It seems to be a problem finding uthash.h header.
I already download the package but I dont know what to do with it.
Can you help me?
Im using Centos 6.6 i386.

Leandro.

On 20/06/15 13:23, Dmitry Vayntrub wrote:

> You might also look at dhcpd-pools
> http://dhcpd-pools.sourceforge.net/
>
> It is really fast (written in C ), and the output is easy to parse, as well as present as a web page if you would like to.
> Here is an example of the text mode output:
> [root@ns1 dhcp]# dhcpd-pools
> Ranges:
> shared net name first ip last ip max cur percent touch t+c t+c perc bu bu perc
> sfs-wifi-dhcp-10_143_010.143.0.16 - 10.143.15.254 4079 16 0.392 860 876 21.476 2037 49.939
> sfs-wifi-dhcp-10_143_1610.143.16.16 - 10.143.31.254 4079 17 0.417 934 951 23.315 2034 49.865
> sfs-wifi-dhcp-10_143_3210.143.32.16 - 10.143.47.254 4079 18 0.441 830 848 20.789 2033 49.841
> sfs-wifi-dhcp-10_143_4810.143.48.16 - 10.143.63.254 4079 21 0.515 934 955 23.413 2034 49.865
> sfs-wifi-dhcp-10_143_6410.143.64.16 - 10.143.79.254 4079 27 0.662 876 903 22.138 2031 49.792
> sfs-wifi-dhcp-10_143_8010.143.80.16 - 10.143.95.254 4079 17 0.417 906 923 22.628 2038 49.963
> sfs-wifi-dhcp-10_143_9610.143.96.16 - 10.143.111.254 4079 17 0.417 922 939 23.020 2037 49.939
> sfs-wifi-dhcp-10_143_11210.143.112.16 - 10.143.127.254 4079 17 0.417 922 939 23.020 1578 38.686
> sfs-wifi-dhcp-10_143_12810.143.128.16 - 10.143.143.254 4079 17 0.417 923 940 23.045 0 0.000
> sfs-wifi-dhcp-10_143_14410.143.144.16 - 10.143.159.254 4079 22 0.539 944 966 23.682 0 0.000
> sfs-wifi-dhcp-10_143_16010.143.160.16 - 10.143.175.254 4079 19 0.466 910 929 22.775 0 0.000
> sfs-wifi-dhcp-10_143_17610.143.176.16 - 10.143.191.254 4079 23 0.564 930 953 23.364 0 0.000
> sfs-wifi-dhcp-10_143_19210.143.192.16 - 10.143.207.254 4079 20 0.490 888 908 22.260 0 0.000
> sfs-wifi-dhcp-10_143_20810.143.208.16 - 10.143.223.254 4079 16 0.392 883 899 22.040 0 0.000
> sfs-wifi-dhcp-10_143_22410.143.224.16 - 10.143.239.254 4079 18 0.441 1085 1103 27.041 0 0.000
> sfs-wifi-dhcp-10_143_24010.143.240.16 - 10.143.255.254 4079 18 0.441 882 900 22.064 0 0.000
>
> Shared networks:
> name max cur percent touch t+c t+c perc bu bu perc
> sfs-wifi-dhcp-10_143_0 4079 16 0.392 860 876 21.476 2037 49.939
> sfs-wifi-dhcp-10_143_16 4079 17 0.417 934 951 23.315 2034 49.865
> sfs-wifi-dhcp-10_143_32 4079 18 0.441 830 848 20.789 2033 49.841
> sfs-wifi-dhcp-10_143_48 4079 21 0.515 934 955 23.413 2034 49.865
> sfs-wifi-dhcp-10_143_64 4079 27 0.662 876 903 22.138 2031 49.792
> sfs-wifi-dhcp-10_143_80 4079 17 0.417 906 923 22.628 2038 49.963
> sfs-wifi-dhcp-10_143_96 4079 17 0.417 922 939 23.020 2037 49.939
> sfs-wifi-dhcp-10_143_112 4079 17 0.417 922 939 23.020 1578 38.686
> sfs-wifi-dhcp-10_143_128 4079 17 0.417 923 940 23.045 0 0.000
> sfs-wifi-dhcp-10_143_144 4079 22 0.539 944 966 23.682 0 0.000
> sfs-wifi-dhcp-10_143_160 4079 19 0.466 910 929 22.775 0 0.000
> sfs-wifi-dhcp-10_143_176 4079 23 0.564 930 953 23.364 0 0.000
> sfs-wifi-dhcp-10_143_192 4079 20 0.490 888 908 22.260 0 0.000
> sfs-wifi-dhcp-10_143_208 4079 16 0.392 883 899 22.040 0 0.000
> sfs-wifi-dhcp-10_143_224 4079 18 0.441 1085 1103 27.041 0 0.000
> sfs-wifi-dhcp-10_143_240 4079 18 0.441 882 900 22.064 0 0.000
>
> [root@ns1 dhcp]# dhcpd-pools -help
> Usage: dhcpd-pools [OPTIONS]
> This is ISC dhcpd pools usage analyzer.
>
> -c --config file path to the dhcpd.conf file
> -l --leases file path to the dhcpd.leases file
> -f --format [thc] output format
> t for text
> h for html table
> H for full html page
> c for comma separated values
> -s --sort [nimcptTe] sort ranges by
> n name
> i IP
> m maxium
> c current
> p percent
> t touched
> T t+c
> e t+c perc
> -r --reverse reverse order sort
> -o --output file output into a file
> -L --limit nr output limit mask 77 - 00
> -v --version version information
> -h --help this screen
>
> Report bugs to <[hidden email]>
>
> Thanks,
> Dmitry Vayntrub
> Systems Coordinator
> Information Technology Services
> San Francisco State University
> (415)338-1909
>
> -----Original Message-----
> From: [hidden email] [mailto:[hidden email]] On Behalf Of Simon Hobson
> Sent: Saturday, June 20, 2015 5:07 AM
> To: Users of ISC DHCP
> Subject: Re: How to query for available / used ip
>
> Leandro <[hidden email]> wrote:
>
>> Hello Guys , I would like to plot the function of my dhcpd server on cacti graph.
>> I want to know ir is there any recommended way to ask a running dhcp server how many ips were granted and how many are available ?
> Check out dhcp-pool
> As well as a command line tool, it has a munin plugin component. In principle it shouldn't be too hard to get it to update an RRD but I haven't got that far yet. As a command line tool it will give you information like this :
>
> Subnet 192.168.7.0/24
> --------------------------------------------------
>
> 1. Pool "WiFi":
>
> Monitoring: ON
> Warning limit: 75%
> Critical limit: 90%
> Active leases: 22/91 (24.2%)
>
> While the Munin plugin will give you output like this :
>
> $ dhcpd-munin_192.168.7.0_24_1
> active.value 22
> warning.value 68.2
> critical.value 81.9
> max.value 91
>
> I figure the latter should be parseable into something that can be fed into Nagios and Cacti
>
> _______________________________________________
> 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

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

Dmitry Vayntrub

RE: How to query for available / used ip

Get the 4 header files from the page below and put in one directory.
https://github.com/troydhanson/uthash/tree/master/src

Specify the directory path when running configure with "--with-uthash". Here is as an example of what I ran., and the uthash header files were under /root/dhcp/dhcpd-pools-2.26/contrib/uthash/src/

./configure --with-uthash=/root/dhcp/dhcpd-pools-2.26/contrib/uthash/src/ --with-dhcpd-conf=/etc/dhcpd.conf --with-dhcpd-leases=/var/lib/dhcpd/dhcpd.leases

Thanks,
Dmitry Vayntrub
Systems Coordinator
Information Technology Services
San Francisco State University
(415)338-1909

> -----Original Message-----
> From: [hidden email] [mailto:dhcp-users-
> [hidden email]] On Behalf Of Leandro
> Sent: Friday, June 26, 2015 12:46 PM
> To: Users of ISC DHCP
> Subject: Re: How to query for available / used ip
>
> Dear Dmitry:
> After you suggest to try dhcpd-pools I have been trying to compile it but could
> not success.
> Im having problems after running ./configure.
> It seems to be a problem finding uthash.h header.
> I already download the package but I dont know what to do with it.
> Can you help me?
> Im using Centos 6.6 i386.
>
> Leandro.
>
> On 20/06/15 13:23, Dmitry Vayntrub wrote:
> > You might also look at dhcpd-pools
> > http://dhcpd-pools.sourceforge.net/
> >
> > It is really fast (written in C ), and the output is easy to parse, as well as present
> as a web page if you would like to.
> > Here is an example of the text mode output:
> > [root@ns1 dhcp]# dhcpd-pools
> > Ranges:
> > shared net name first ip last ip max cur percent
> touch t+c t+c perc bu bu perc
> > sfs-wifi-dhcp-10_143_010.143.0.16 - 10.143.15.254 4079 16 0.392
> 860 876 21.476 2037 49.939
> > sfs-wifi-dhcp-10_143_1610.143.16.16 - 10.143.31.254 4079 17 0.417
> 934 951 23.315 2034 49.865
> > sfs-wifi-dhcp-10_143_3210.143.32.16 - 10.143.47.254 4079 18 0.441
> 830 848 20.789 2033 49.841
> > sfs-wifi-dhcp-10_143_4810.143.48.16 - 10.143.63.254 4079 21 0.515
> 934 955 23.413 2034 49.865
> > sfs-wifi-dhcp-10_143_6410.143.64.16 - 10.143.79.254 4079 27 0.662
> 876 903 22.138 2031 49.792
> > sfs-wifi-dhcp-10_143_8010.143.80.16 - 10.143.95.254 4079 17 0.417
> 906 923 22.628 2038 49.963
> > sfs-wifi-dhcp-10_143_9610.143.96.16 - 10.143.111.254 4079 17 0.417
> 922 939 23.020 2037 49.939
> > sfs-wifi-dhcp-10_143_11210.143.112.16 - 10.143.127.254 4079 17
> 0.417 922 939 23.020 1578 38.686
> > sfs-wifi-dhcp-10_143_12810.143.128.16 - 10.143.143.254 4079 17
> 0.417 923 940 23.045 0 0.000
> > sfs-wifi-dhcp-10_143_14410.143.144.16 - 10.143.159.254 4079 22
> 0.539 944 966 23.682 0 0.000
> > sfs-wifi-dhcp-10_143_16010.143.160.16 - 10.143.175.254 4079 19
> 0.466 910 929 22.775 0 0.000
> > sfs-wifi-dhcp-10_143_17610.143.176.16 - 10.143.191.254 4079 23
> 0.564 930 953 23.364 0 0.000
> > sfs-wifi-dhcp-10_143_19210.143.192.16 - 10.143.207.254 4079 20
> 0.490 888 908 22.260 0 0.000
> > sfs-wifi-dhcp-10_143_20810.143.208.16 - 10.143.223.254 4079 16
> 0.392 883 899 22.040 0 0.000
> > sfs-wifi-dhcp-10_143_22410.143.224.16 - 10.143.239.254 4079 18
> 0.441 1085 1103 27.041 0 0.000
> > sfs-wifi-dhcp-10_143_24010.143.240.16 - 10.143.255.254 4079 18
> 0.441 882 900 22.064 0 0.000
> >
> > Shared networks:
> > name max cur percent touch t+c t+c perc bu bu perc
> > sfs-wifi-dhcp-10_143_0 4079 16 0.392 860 876 21.476 2037
> 49.939
> > sfs-wifi-dhcp-10_143_16 4079 17 0.417 934 951 23.315 2034
> 49.865
> > sfs-wifi-dhcp-10_143_32 4079 18 0.441 830 848 20.789 2033
> 49.841
> > sfs-wifi-dhcp-10_143_48 4079 21 0.515 934 955 23.413 2034
> 49.865
> > sfs-wifi-dhcp-10_143_64 4079 27 0.662 876 903 22.138 2031
> 49.792
> > sfs-wifi-dhcp-10_143_80 4079 17 0.417 906 923 22.628 2038
> 49.963
> > sfs-wifi-dhcp-10_143_96 4079 17 0.417 922 939 23.020 2037
> 49.939
> > sfs-wifi-dhcp-10_143_112 4079 17 0.417 922 939 23.020 1578
> 38.686
> > sfs-wifi-dhcp-10_143_128 4079 17 0.417 923 940 23.045 0
> 0.000
> > sfs-wifi-dhcp-10_143_144 4079 22 0.539 944 966 23.682 0
> 0.000
> > sfs-wifi-dhcp-10_143_160 4079 19 0.466 910 929 22.775 0
> 0.000
> > sfs-wifi-dhcp-10_143_176 4079 23 0.564 930 953 23.364 0
> 0.000
> > sfs-wifi-dhcp-10_143_192 4079 20 0.490 888 908 22.260 0
> 0.000
> > sfs-wifi-dhcp-10_143_208 4079 16 0.392 883 899 22.040 0
> 0.000
> > sfs-wifi-dhcp-10_143_224 4079 18 0.441 1085 1103 27.041 0
> 0.000
> > sfs-wifi-dhcp-10_143_240 4079 18 0.441 882 900 22.064 0
> 0.000
> >
> > [root@ns1 dhcp]# dhcpd-pools -help
> > Usage: dhcpd-pools [OPTIONS]
> > This is ISC dhcpd pools usage analyzer.
> >
> > -c --config file path to the dhcpd.conf file
> > -l --leases file path to the dhcpd.leases file
> > -f --format [thc] output format
> > t for text
> > h for html table
> > H for full html page
> > c for comma separated values
> > -s --sort [nimcptTe] sort ranges by
> > n name
> > i IP
> > m maxium
> > c current
> > p percent
> > t touched
> > T t+c
> > e t+c perc
> > -r --reverse reverse order sort
> > -o --output file output into a file
> > -L --limit nr output limit mask 77 - 00
> > -v --version version information
> > -h --help this screen
> >
> > Report bugs to <[hidden email]>
> >
> > Thanks,
> > Dmitry Vayntrub
> > Systems Coordinator
> > Information Technology Services
> > San Francisco State University
> > (415)338-1909
> >
> > -----Original Message-----
> > From: [hidden email]
> > [mailto:[hidden email]] On Behalf Of Simon Hobson
> > Sent: Saturday, June 20, 2015 5:07 AM
> > To: Users of ISC DHCP
> > Subject: Re: How to query for available / used ip
> >
> > Leandro <[hidden email]> wrote:
> >
> >> Hello Guys , I would like to plot the function of my dhcpd server on cacti
> graph.
> >> I want to know ir is there any recommended way to ask a running dhcp server
> how many ips were granted and how many are available ?
> > Check out dhcp-pool
> > As well as a command line tool, it has a munin plugin component. In principle it
> shouldn't be too hard to get it to update an RRD but I haven't got that far yet. As
> a command line tool it will give you information like this :
> >
> > Subnet 192.168.7.0/24
> > --------------------------------------------------
> >
> > 1. Pool "WiFi":
> >
> > Monitoring: ON
> > Warning limit: 75%
> > Critical limit: 90%
> > Active leases: 22/91 (24.2%)
> >
> > While the Munin plugin will give you output like this :
> >
> > $ dhcpd-munin_192.168.7.0_24_1
> > active.value 22
> > warning.value 68.2
> > critical.value 81.9
> > max.value 91
> >
> > I figure the latter should be parseable into something that can be fed
> > into Nagios and Cacti
> >
> > _______________________________________________
> > 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
>
> _______________________________________________
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> [hidden email]
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