new cable modem - and problems

Lennart Sorensen lsorense-1wCw9BSqJbv44Nm34jS7GywD8/FfD2ys at public.gmane.org
Fri Sep 24 16:47:22 UTC 2004


On Fri, Sep 24, 2004 at 12:26:15PM -0400, Matt Cahill wrote:
> 
> Thursday, September 23, 2004, 11:29:53 AM, you wrote:
> 
> LS> Have you checked that you don't have a firewall blocking port 67/68 used
> LS> by dhcp?
> 
> LS> Try running tcpdump on the interface looking for port 67 and 68 traffic.
> 
>    So, I disabled the firewall, and no luck.  Really frustrating.  As
>    previously mentioned, I will try to take home a bootable CD to see
>    if it's just something with my OS config.
> 
>    As for tcpdump ('tcpdump -i eth0', I assume), I don't know enough
>    about what the feedback says.

tcpdump -i eth0 -v -s 1500 'port 67 or port 68'

Should show BOOTP or DHCP request and hopefully offer or acknowledge.

Lennart Sorensen
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