problem with wireless card in redHat 9.0

Hi there,

I'm trying to install a small adhoc network with two laptops runing redhat
9.0 with Linksys wireless adaptor. The software and hardware for both
laptop are the same. After I configure both boxes and assign two different
IP addresses by using system setting-network. It's OK that I ping the ip
address locally (ping itself), but cannot ping the other box, "detination
unreachable".

Is any settings wrong here?

TIA

Mike