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Today's Topics:
1. Build a custom log entry on a DHCPACK CentOS 6. (Mark Haney)
2. Re: Build a custom log entry on a DHCPACK CentOS 6. (Bob Harold)
3. Re: Build a custom log entry on a DHCPACK CentOS 6. (Mark Haney)
----------------------------------------------------------------------
Message: 1
Date: Fri, 26 May 2017 11:38:49 -0400
From: Mark Haney <mark.ha...@neonova.net>
To: dhcp-users@lists.isc.org
Subject: Build a custom log entry on a DHCPACK CentOS 6.
Message-ID:
<CAMzGKZ9QXhjm=h1+ehjhqqb8fjbquza6gdvrxhozg2f+nsh...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
We've got a custom log entry created that's based on whether the
agent.circuit-id exists. The problem is that the circuit-id gets included
in DHCPDISCOVER and DHCPOFFER, so we're getting duplicate custom messages
logged.
What we want to do it create this custom log file, with the circuit-id only
on the DHCPACK. The log creation params are below. We use this so that
customers can get a web interface view of the current leases.
Is there a way to do this with the latest CentOS 6 dhcpd package?
----
if exists agent.circuit-id
{
log (info, concat( "DHCPUSER:,", concat (suffix (concat ("0",
binary-to-ascii (16, 8, "", substring( hardware, 1, 1))),2), ":", suffix
(concat ("0", binary-to-ascii (16, 8, "",substring( hardware, 2, 1))),2),
":", suffix (concat ("0", binary-to-ascii(16, 8, "", substring( hardware,
3, 1))),2), ":", suffix (concat ("0", binary-to-ascii (16, 8, "",
substring( hardware, 4, 1))),2),":", suffix (concat ("0", binary-to-ascii
(16, 8, "", substring( hardware, 5, 1))),2), ":", suffix (concat ("0",
binary-to-ascii (16, 8, "", substring( hardware, 6, 1))),2)), ",IP:,",
binary-to-ascii (10, 8, ".", leased-address), ",CID:,", option
agent.circuit-id));
}
--
[image: photo]
Mark Haney
Network Engineer at NeoNova
919-460-3330 <(919)%20460-3330> (opt 1) ? mark.ha...@neonova.net
<http://m...@neonova.net/>
www.neonova.net <https://neonova.net/>
<https://www.facebook.com/NeoNovaNNS/> <https://twitter.com/NeoNova_NNS>
<http://www.linkedin.com/company/neonova-network-services>
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Message: 2
Date: Fri, 26 May 2017 14:56:36 -0400
From: Bob Harold <rharo...@umich.edu>
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: Re: Build a custom log entry on a DHCPACK CentOS 6.
Message-ID:
<ca+nkc8c_q5h40vd5vgvw_cycvb-gncc3nz+rkv2por8vghv...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
On Fri, May 26, 2017 at 11:38 AM, Mark Haney <mark.ha...@neonova.net> wrote:
> We've got a custom log entry created that's based on whether the
> agent.circuit-id exists. The problem is that the circuit-id gets included
> in DHCPDISCOVER and DHCPOFFER, so we're getting duplicate custom messages
> logged.
>
> What we want to do it create this custom log file, with the circuit-id
> only on the DHCPACK. The log creation params are below. We use this so
> that customers can get a web interface view of the current leases.
>
> Is there a way to do this with the latest CentOS 6 dhcpd package?
>
> ----
> if exists agent.circuit-id
> {
> log (info, concat( "DHCPUSER:,", concat (suffix (concat ("0",
> binary-to-ascii (16, 8, "", substring( hardware, 1, 1))),2), ":", suffix
> (concat ("0", binary-to-ascii (16, 8, "",substring( hardware, 2, 1))),2),
> ":", suffix (concat ("0", binary-to-ascii(16, 8, "", substring( hardware,
> 3, 1))),2), ":", suffix (concat ("0", binary-to-ascii (16, 8, "",
> substring( hardware, 4, 1))),2),":", suffix (concat ("0", binary-to-ascii
> (16, 8, "", substring( hardware, 5, 1))),2), ":", suffix (concat ("0",
> binary-to-ascii (16, 8, "", substring( hardware, 6, 1))),2)), ",IP:,",
> binary-to-ascii (10, 8, ".", leased-address), ",CID:,", option
> agent.circuit-id));
> }
>
>
> --
> [image: photo]
> Mark Haney
> Network Engineer at NeoNova
> 919-460-3330 <(919)%20460-3330> (opt 1) ? mark.ha...@neonova.net
> <http://m...@neonova.net/>
> www.neonova.net <https://neonova.net/>
> <https://www.facebook.com/NeoNovaNNS/> <https://twitter.com/NeoNova_NNS>
> <http://www.linkedin.com/company/neonova-network-services>
>
>
Try wrapping that with:
on commit {
...
}
Then it should only happen once, when the lease is granted.
--
Bob Harold
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------------------------------
Message: 3
Date: Fri, 26 May 2017 15:08:47 -0400
From: Mark Haney <mark.ha...@neonova.net>
To: Users of ISC DHCP <dhcp-users@lists.isc.org>
Subject: Re: Build a custom log entry on a DHCPACK CentOS 6.
Message-ID:
<camzgkz9pnu-7xsomzxymz_1httoopw7iwww26359ggawdbk...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Okay, let me see if I get this straight, I should wrap the entire if
statement inside an 'on commit {}' block?
On Fri, May 26, 2017 at 2:56 PM, Bob Harold <rharo...@umich.edu> wrote:
>
> On Fri, May 26, 2017 at 11:38 AM, Mark Haney <mark.ha...@neonova.net>
> wrote:
>
>> We've got a custom log entry created that's based on whether the
>> agent.circuit-id exists. The problem is that the circuit-id gets included
>> in DHCPDISCOVER and DHCPOFFER, so we're getting duplicate custom messages
>> logged.
>>
>> What we want to do it create this custom log file, with the circuit-id
>> only on the DHCPACK. The log creation params are below. We use this so
>> that customers can get a web interface view of the current leases.
>>
>> Is there a way to do this with the latest CentOS 6 dhcpd package?
>>
>> ----
>> if exists agent.circuit-id
>> {
>> log (info, concat( "DHCPUSER:,", concat (suffix (concat ("0",
>> binary-to-ascii (16, 8, "", substring( hardware, 1, 1))),2), ":", suffix
>> (concat ("0", binary-to-ascii (16, 8, "",substring( hardware, 2, 1))),2),
>> ":", suffix (concat ("0", binary-to-ascii(16, 8, "", substring( hardware,
>> 3, 1))),2), ":", suffix (concat ("0", binary-to-ascii (16, 8, "",
>> substring( hardware, 4, 1))),2),":", suffix (concat ("0", binary-to-ascii
>> (16, 8, "", substring( hardware, 5, 1))),2), ":", suffix (concat ("0",
>> binary-to-ascii (16, 8, "", substring( hardware, 6, 1))),2)), ",IP:,",
>> binary-to-ascii (10, 8, ".", leased-address), ",CID:,", option
>> agent.circuit-id));
>> }
>>
>>
>> --
>> [image: photo]
>> Mark Haney
>> Network Engineer at NeoNova
>> 919-460-3330 <(919)%20460-3330> (opt 1) ? mark.ha...@neonova.net
>> <http://m...@neonova.net/>
>> www.neonova.net <https://neonova.net/>
>> <https://www.facebook.com/NeoNovaNNS/> <https://twitter.com/NeoNova_NNS>
>> <http://www.linkedin.com/company/neonova-network-services>
>>
>>
> Try wrapping that with:
> on commit {
> ...
> }
>
> Then it should only happen once, when the lease is granted.
>
> --
> Bob Harold
>
>
> _______________________________________________
> dhcp-users mailing list
> dhcp-users@lists.isc.org
> https://lists.isc.org/mailman/listinfo/dhcp-users
>
--
[image: photo]
Mark Haney
Network Engineer at NeoNova
919-460-3330 <(919)%20460-3330> (opt 1) ? mark.ha...@neonova.net
www.neonova.net <https://neonova.net/>
<https://www.facebook.com/NeoNovaNNS/> <https://twitter.com/NeoNova_NNS>
<http://www.linkedin.com/company/neonova-network-services>
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