SIOCADDRT: Invalid argument

["David W. Leask" <devnull leask net>]

I am having a problem with a "SIOCADDRT: Invalid argument" error at boot
time.
  I'm using 2 Intel EtherExpress Pro100B net cards. They are detected during
install
and the eth0 interface comes up after install. I use netconf to configure
the 2nd adapters
(eth1)IP, mask, etc. I then ran netcfg to set the eth1(2nd interface) to
activate at boot.
Is there a better way to configure the network cards?