Kent Schumacher wrote:
> 
> Bob Tanner wrote:
> > 
> > Quoting Kurt Schumacher (burtmetcalf at mediaone.net):
> > > I am somewhat a novice at Linux and I just got a cable modem through RR
> > > (3Com) and want to hook it up to my Linux machine.  I installed it under
> > > Windows to make sure everything was working.  Can anyone help me get it
> > > connected and running under Linux.  As I said, I am somewhat of a novice
> > > so if you can make it easy to understand, I would appreciate it.
> > 
> > What distribution?
> > --
> 
> I took an interest in Kurt's system over the weekend and failed utterly
> to get it working.
> 
> He's running a 2.2.18 kernel on a RedHat 6.1 base.
> 
> The Windows 95 machine has a netgear fa311 card and a single 10baseT
> cable runs from the NIC to the cable modem - as Kurt said it's a
> 3com modem.  The 3com web site has a lot of docs on cable modems
> but not Kurt's specific modem.  At any rate.
> 
> Kurt has a working SMC network card in his linux machine, so I
> had him move the cable to the network card and then had him
> run the netcfg app and set the IP parameters (IP address,
> netmask, etc...) to the same values he had on the windows
> machine.  When he tried to ping qwest.net IP address it
> failed with a network not found.  Note that this was the
> direct IP number, not the name.
> 
> Kurt was not able to find a gateway address on his Windows box
> (and I haven't run Windows in years so I couldn't help him).

Try "192.168.100.1" ==  the cable modem.  My working setup includes
an /etc/sysconfig/network which looks like:
	> NETWORKING=yes
	> HOSTNAME=YourMachineNameHere
	> GATEWAYDEV=
	> GATEWAY=192.168.100.1
	> FORWARD_IPV4=yes
	> IPX="no"
	> IPXINTERNALNETNUM="0"
	> IPXINTERNALNODENUM="0"
	> IPXAUTOPRIMARY="on"
	> IPXAUTOFRAME="on"

If he has a second NIC on the box, make sure you're priming the right NIC
at boot time.

> I then had him move the netgear fa311 to the linux box on the
> off chance that RoadRunner was tracking the MAC address, and had
> him install the netgear driver.
> 
> After all was installed, I had him try a dhcpcd eth0, which
> has always worked with my Cisco 675.  The cable modem lights
> blinked for a while and then dhcpcd exited.
> 
> /var/log/messages showed that dhcpcd had timed out. 
> 
> I guess what would be helpful is just some general information.
> 
> Does RoadRunner need to be hooked to a specific NIC?

Yes... use the NIC that it was installed with on the Windows box.
The modem is configured with that MAC address and won't talk to any
others.

> What mode is the 3com modem running in.  Should it be treated
> like a wire, a router, or ???

Treat it like a gateway.

> Is DHCP the proper way to get an IP address set up?

Yes. RPM version dhcp-2.0b1pl6-6 works.  Some previous versions didn't.

> If so, any clues as to why dhcpcd failed?
> 
> What are the rest of you doing to make it work?

Once the connection lease is granted, use pump in a root cron script to
keep the lease open.  Leases are usually only 12 hours long, so renew
at least every 6 hours.

> 
> Thanks,
> Kent

No problem,

-Steve