Try leaving the power off on the cable modem for 3-5 minutes? They typically
hold the MAC address in memory for a short time, 5 min should definitely
clear it. What cable provider is it? I've used Comcast and Adelphia with no
problems even decent vpn's without too much changing of ip's.
> -----Original Message-----
> From: Wyatt Draggoo [mailto:wyatt at draggoo dot com]
> Sent: Thursday, August 04, 2005 8:22 PM
> To: m0n0wall at lists dot m0n0 dot ch
> Subject: [m0n0wall] DHCP problems on WAN side
>
> Hi folks,
>
> I have used m0n0wall several times in the past, so I figured
> setting up a box for a cable modem connection at our new
> apartment would be pretty straight-forward.
>
> Well, of course not.
>
> In short, the problem is that the WAN isn't getting an IP
> address. Both of our laptops in the house receive one, as
> does the Linksys wireless router (that I am relegating to an
> access point once this is working). The NICs for the LAN and
> WAN side are the same model, and I can connect on the LAN
> side, so I don't think that's the issue. I'm also using the
> same network cable for all of the connections to rule out a
> faulty cable.
>
> My process:
>
> 1) Remove power from the cable modem
> 2) Wait roughly 15 seconds
> 3) Unplug the network cable from the current device
> 4) Plug the network cable in to the device I am testing
> 5) Power the cable modem back up
> 6) Power on the device to test, if necessary (not necessary
> for the OS X or XP laptops, not sure if it's necessary for
> m0n0wall, so I have if off when I plug it in, and then power it on)
>
> I have also switched the LAN and WAN side NICs, so I know
> both NICs are working.
>
> I spent nearly 4 hours on Sunday trying to figure out what
> simple, little thing I missed.
>
> Any ideas?
>
> Thanks,
> Wyatt
>
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