Re-activate current lease on DHCPDISCOVER

Peter Breitenlohner peb at mppmu.mpg.de
Thu Oct 9 14:15:42 UTC 2008


On Thu, 9 Oct 2008, Drew Weaver wrote:

> Maybe I didn't explain it very well.
>
> PC boots up once.
>
> Oct  9 08:06:24 c8 dhcpd: DHCPDISCOVER from 00:16:76:e0:d3:5b via 10.1.0.1.9
> Oct  9 08:06:25 c8 dhcpd: DHCPOFFER on 10.1.0.1.10 to 00:16:76:e0:d3:5b (lan-941a75b0) via 10.1.0.1.9
> Oct  9 08:06:25 c8 dhcpd: DHCPREQUEST for 10.1.0.1.10 from 00:16:76:e0:d3:5b (lan-941a75b0) via 10.1.0.1.9
> Oct  9 08:06:25 c8 dhcpd: DHCPACK on 10.1.0.1.10 to 00:16:76:e0:d3:5b (lan-941a75b0) via 10.1.0.1.9
>
> Some presses the 'reset' button on the PC.
>
> Oct  9 08:07:37 c8 dhcpd: DHCPDISCOVER from 00:16:76:e0:d3:5b via 10.1.0.1.9: network 10.1.0.1.8/29: no free leases
>
> My question is, why doesn't it just reassign the same lease that it already has? Obviously it isn't using it if it is requesting a lease.
>
> I tried the commands you suggested and it didn't seem to really solve the issue. Any more thoughts?

First of all, an RFC complient client should first ask for the same address
it got last time.

Nevertheless the server should offer the address it gave last time.

Could the failure to do so be due to the strange IP addresses you are using
(five digits instead of the usual four). Is that caused by some local
modifications?

Regards
Peter Breitenlohner


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