Interface issue

[sweaniv]

Can any1 plz help me::::


I have a linux box with four interfaces(eth).
I have connected cable and assigned Ip for two of the interfaces.When I try pinging the IP,after adding default GW,it is pinging for one of the assigned IP addresses.
For the other interface and other IP address,it is not pinging even if I do
* ifconfig eth1 down for teh other one.
The physical link is not getting detected at all for eth0.
thought there could be some cabling issue,but the cable was fine.

Can some one plz let me know how to resolve this issue??

#mii-tool
eth0:no link
eth1:link ok

[Lazydog]

Are you assigning public or private ip addresses?
How are you pining to the box or from the box?
Can you ping each of the next hop from the box?