Determining which server, in a partner pair, granted a lease
Steve van der Burg
steve.vanderburg at LHSC.ON.CA
Fri Jul 10 14:12:19 UTC 2009
Thanks for the info. Knowing about that field led me to set up a little bit of extra logging to catch it:
if option dhcp-message-type = 3 {
log (info, concat("extra: dhcp-server-identifier at REQUEST is ",
binary-to-ascii (10, 8, ".", option dhcp-server-identifier),
" for MAC ",
binary-to-ascii (16, 8, ":", hardware)));
}
This seems to work, and now I can scrape the logs to figure out which server gave out a lease (scrape for my "extra:" message, and confirm that the server responded by looking for the DHCPACK back to the same MAC).
...Steve
loganathan Govindaraj <loganosc at gmail.com> wrote:
> Based on the sniffer logs from the server , on the server identifier field(
> offer ) you check which server has offered the ip .
>
> Logan
>
> On Tue, Jul 7, 2009 at 2:15 AM, Steve van der Burg <
> steve.vanderburg at lhsc.on.ca> wrote:
>
>> Please forgive me if this has been asked and answered before (I searched
>> the list for at least 30 minutes and couldn't find an answer):
>>
>> Is there a way, in 3.x, either by looking at the leases themselves (in
>> dhcpd.leases) or the log files, or possibly by adding a bit of extra
>> logging, to tell which of two dhcpd partners granted a lease to a client?
>> When I compare lease files and logs on both, it all pretty much looks the
>> same on both.
>>
>> Thanks.
>>
>> ...Steve
>>
>>
>>
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