need help with configuring ethernet cards

[Paul Tod Rieger]

I wrote about my problems setting up a second interface with a 3Com
3c900-combo:

> But I can't get eth1 working.  I've tried:
> 
> ifconfig eth1 ${IPADDR_1} netmask ${NETMASK_1} broadcast ${BROADCAST_1}
> route add -net ${NETWORK_1}
> 
> but I typically get:
> 
> ping: sendto: Operation not permitted
> ping: wrote jetdirect 64 chars, ret=-1
> 
> when I try to ping other machines on the LAN.


My thanks to Jon Marler <jmarler@istrength.net> for pointing out:

> That is a firewall rules error.  If you get the ipfwadm package (kernel
> 2.0.36 or older) or the ipchains package (2.2.1 and newer kernels) you can
> fix this.
> 
> The even easier way to fix that problem, is to get the ipmasq package.
> Once you get that, just type "ipmasq" and it will setup the rules for you.

I wanted to eventually run ipmasq, so I insmod'd the second NIC's driver
(3c59x), ifconfig'd & route'd eth1, insmod'd the ipmasq modules, and
typed "ipmasq".

And I can now fully access my other machines.

Thanks to everyone for their help!

Tod