Date: 07 Apr 2005 09:23:31 -0400 From: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org> To: Mark Cullen <mark.cullen@dsl.pipex.com> Cc: freebsd-questions@freebsd.org Subject: Re: dhclient oddness? Message-ID: <443bu2oh4c.fsf@be-well.ilk.org> In-Reply-To: <4252FFF1.507@dsl.pipex.com> References: <4252FFF1.507@dsl.pipex.com>
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Mark Cullen <mark.cullen@dsl.pipex.com> writes: > Right, I have this weird annoying issue with my modem which I have > finally got around to looking in to. Basically, it's all good and > works fine (obviously, otherwise I wouldn't be here!), except when I > reboot the internet computer the IP will change, the connection > DOESN'T drop, but the IP does change. I have just now narrowed this > down to some sort of problem with dhcp I think. > > The modem has a dhcpd server built in, which sends out the internet IP > address to the computers network card. It seems, whenever the dhcp > client, dhclient in this case, gets restarted it'll get the old ip > address (the first chunk of the quote below, before the <freeze>), > natd will update itself, but then the connection will just stall until > dhclient does the next DHCPREQUEST thing (47 seconds in this case?) > .. then the modem sends back a DHCPNAK and I get a different IP > address. Any ideas why this might be happening? Your "modem" is clearly the source of the problem, and it seems unlikely that anything on the FreeBSD side could help, aside from maybe forcing a lease free before starting dhclient on startup. I'd try looking at the configuration for that "modem" device, or possibly for a firmware upgrade for it.
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