Re: problem getting freebsd to connect to network

From: /dev/rob0 (rob0_at_gmx.co.uk)
Date: 09/14/03 

Date: Sat, 13 Sep 2003 15:33:17 -0700

In article <CiZ7b.7126$_Y6.63884495@news-text.cableinet.net>,
  colin wrote:
> Okay I know FreeBSD isn't strictly Linux, but since there's no UNIX
> networking newsgroup, I thought I'd try my luck here. I hope nobody minds.

Since you are clearly aware that this is off-topic, no, I don't mind.
But I see that no one has HELPED, either. I think this is a matter for
your "modem" manufacturer's support and/or FreeBSD mailing lists.

> My computers are connected to my modem via an ethernet switch. My modem is
> set up as a DHCP server, and my computers are DHCP enabled.

By "modem" I am guessing that you mean some kind of cable or DSL router?
Strictly speaking, a modem is a device which plugs into analog telephone
lines.

> When the input cable is disconnected from the modem (not the power, so it's
> still assigning IP addresses to my LAN) my BSD box picks up a valid internal
> IP address and subnet mask, it can ping and be pinged from all other

Okay. Try enabling maximum debugging in your DHCP client. See what
transpires between client and server ...

> However, when the input cable is connected to my modem, so it's connected to
> the internet, my BSD box receives nothing. When I do an ifconfig, it shows

... and repeat under these conditions.

> I don't think the problem's with the switch, since I tested all the ports.
> Same goes for the LAN cards, and I know my modem is properly configured.

I'm guessing that the DHCP server is doing something non-standard, maybe
a Windows-only DHCP extension, which your DHCP client doesn't like.

> So has anyone got an idea? I would be very grateful for any help, as this

Have you tried a static IP on the BSD box? Set the "modem" IP as the
default gateway, and probably also as the DNS server. (Check the Windows
clients for what DNS server[s] they were assigned.) 

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