Date: Mon, 1 Nov 2004 19:33:56 +0000 (GMT) From: Robert Watson <rwatson@freebsd.org> To: Rob <spamrefuse@yahoo.com> Cc: freebsd-current <freebsd-current@freebsd.org> Subject: Re: 5.3 + dhclient: bpf needed in kernel config? Message-ID: <Pine.NEB.3.96L.1041101193158.87725C-100000@fledge.watson.org> In-Reply-To: <418622A2.30607@yahoo.com>
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On Mon, 1 Nov 2004, Rob wrote:
> Aha. So I added bpf to my kernel config, recompiled and installed
> everything again.
>
> Yesterday this PC has been upgraded from 4.10 to most recent 5.3. I have
> in /etc/rc.conf
>
> ifconfig_rl0="DHCP"
>
> which worked jsut fine with 4.10, but seems to misserably fail with 5.3.
>
> Dhclient binds rl0 to 192.168.1.22 all the time, which seems to be a
> kind of default for a failing dhclient.
>
> Is something else, unusual, needed in 5.3, that is critical to dhclient?
Other than BPF and, of course, INET, I don't know of specific other
dependencies. I would suggest hooking up tcpdump to the interface before
running dhclient, and using a command something like the following:
tcpdump -p -i rl0 udp port dhcpc or udp port dhcps &
And see what packets go out while dhclient runs. BTW, dhclient gets
somewhat confused if run more than once, so I might do a "killall
dhclient" before experimenting to be on the safe side. If it was
upgraded, you might try deleting the old leases database
(/var/db/dhclient.leases).
Robert N M Watson FreeBSD Core Team, TrustedBSD Projects
robert@fledge.watson.org Principal Research Scientist, McAfee Research
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