Re: dhclient problem
David Fokkema <fokkema@nat.vu.nl> writes:
>
> Since this post, I contacted my ISP and they say they can see my REQUEST,
> and hey! Yes, there goes the ACK! Another REQUEST, another ACK! But
> somehow, I don't receive them. I use tcpdump <options> | dhcpdump and that
> works perfectly, I can see all DHCP options, addresses and things and the
> REQUEST is for the same address as the original one. Even the OFFER offers
> this old address. The DHCPACK leaves the server (they say), but doesn't
> reach me.
If you aren't seeing the alleged DHCPACK packet even in raw "tcpdump"
output, there's not much you can do. If you have a "smart" router or
something between your ADSL modem and your computer, it may be doing
something remarkably stupid to those ACKs, but if your computer is
directly connected to the ADSL modem and no ACK packet gets to your
machine, then the problem is obviously theirs.
Try running:
tcpdump -s 2000 -nXe
(without piping it through "dhcpdump", in case that's swallowing some
of the packets for some reason) and go through a connection attempt.
Send that output along, and I'll take a look at it.
--
Kevin <buhr@telus.net>
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