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Today's Topics:
1. Re: Build a custom log entry on a DHCPACK CentOS 6. (Bob Harold)
2. Re: Build a custom log entry on a DHCPACK CentOS 6.
(Chuck Anderson)
----------------------------------------------------------------------
Message: 1
Date: Tue, 30 May 2017 12:05:53 -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+nkc8ctky49u3+_ohjmjle6n0y2zje4zklqfcrazrkc5vn...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
On Tue, May 30, 2017 at 8:02 AM, Mark Haney <mark.ha...@neonova.net> wrote:
> Well, it sort of works that way. The issue now is it is logging it
> twice. Which doesn't make sense to me in any way. I only posted half the
> 'if' statement, but logically the else shouldn't matter. Why is /on
> commit/ logging 2 (and sometimes 3) entries for one DHCPACK?
>
That is really strange. I am not seeing that behavior on my server.
--
Bob Harold
> On 05/26/2017 03:23 PM, Bob Harold wrote:
>
>
> On Fri, May 26, 2017 at 3:08 PM, Mark Haney <mark.ha...@neonova.net>
> wrote:
>
>> Okay, let me see if I get this straight, I should wrap the entire if
>> statement inside an 'on commit {}' block?
>>
>>
> Yes
>
> on commit {
> 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));
> }
> }
>
> --
> Bob Harold
>
>
>> 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 <%28919%29%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 <%28919%29%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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Message: 2
Date: Tue, 30 May 2017 12:21:52 -0400
From: Chuck Anderson <c...@wpi.edu>
To: dhcp-users@lists.isc.org
Subject: Re: Build a custom log entry on a DHCPACK CentOS 6.
Message-ID: <20170530162152.gc6...@angus.ind.wpi.edu>
Content-Type: text/plain; charset=us-ascii
On Tue, May 30, 2017 at 12:05:53PM -0400, Bob Harold wrote:
> On Tue, May 30, 2017 at 8:02 AM, Mark Haney <mark.ha...@neonova.net> wrote:
>
> > Well, it sort of works that way. The issue now is it is logging it
> > twice. Which doesn't make sense to me in any way. I only posted half the
> > 'if' statement, but logically the else shouldn't matter. Why is /on
> > commit/ logging 2 (and sometimes 3) entries for one DHCPACK?
> >
> That is really strange. I am not seeing that behavior on my server.
How many relay agents do you have?
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