can i use Secondry ip on firewall

["partha" <partha.s@comat.com>]

I am using firewall-jay and Squid.

eth0 global ip
eth1 local ip (192.168.3.1)

Can i have secondary ip (192.168.4.1) on the eth1?
And use the squid for this subnet to access
internet?

~R
Partha,