[olug] dhclient and Cox dhcp

trose trose at cox.net
Thu Jun 13 10:58:13 UTC 2002


[Again..I am sorry but I had to put in my 2centsworth:  Trent M hit it on
the money...]

A reset of the modem is in order.  I found this out completely by accident.
Usually I just pull the plug on the transformer input for 3-5 seconds while
Linux/BSD is booting and looking for DHCP authentication from the server.
Works about every other time.  Good luck and Peace*


----- Original Message -----
From: "Mike Hostetler" <thehaas at binary.net>
To: <olug at olug.org>
Sent: Tuesday, June 11, 2002 11:20 AM
Subject: Re: [olug] dhclient and Cox dhcp


> On Tue, Jun 11, 2002 at 11:15:48AM -0500, kaygee wrote:
> > Does anyone no what kind of fatted calf I have to kill to get OpenBSD's
> > dhclient to grab an ip from Cox's dhcp servers?
> >
> > I tried the -r flag thinking maybe they were using obsolete RFC1531 (or
> > thereabouts) but the DHCP_DISCOVER requests just keep timing out.
>
> Here's a guess, and nothing but a guess . . .
>
> Maybe OpenBSD's dhclient is looking for a broadcast back from Cox.  I
> don't get one back when booting on my Linux box, but it goes on anyway:
>
> --- (from my boot.log) -----
> Starting service dhcp client on  eth0dhcpcd[5629]: broadcasting
> DHCP_REQUEST for 68.13.136.203
>
> dhcpcd[5629]: broadcastAddr option is missing in DHCP server response.
> Assuming 68.13.139.255
>
> dhcpcd[5629]: DHCP_ACK received from  (172.19.81.16)
>
>  done
> ----------------------------
>
> Maybe look at the options of dhclient to manually set the broadcast at a
> /24.
>
> -- mikeh
>
>
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