"Network is Unreachable"

[Kyle D. Harris]

I'm not sure where to go. When i ping another server on our network, I get 100% package recieved.

When i try to ping say java.sun.com or any other off site address, it says "network is unreachable" . I don't understand this or what could be the problem. Thanks in advance.

Kyle

[Mark Grant]

This will probably be a routing problem. Your default gateway ("netstat -rn") should be a machine/router that is configured to route you out to the internet.

You might need to speak to whoever is responsible for your network.

[Alexander Chuzhoy]

1.many sites don't allow ICMP protocol on their edge.That's why you probably can't ping
2. If you know that this site allows -then perhaps the firewall on your edge doesn't allow this.
3.If you know that it's not it -check DNS settings.

[Kyle D. Harris]

Mark, Thanks. I have suspicions about The Broadcast and Network and Gateway addresses. I figured my Gateway address is the same as in other servers we have. I'm not sure if it would differ or not?

[Kyle D. Harris]

Alexander-
I think yourself and Mark are probly right about DNS settings. I was trying to ping Redhat.com which i'm pretty sure allows it. I'll look into those settings. Thanks.

[Mark Grant]

Kyle,

The gateway should probably be the same for machines on the same subnet,

[Alexander Chuzhoy]

you can use traceroute command to see the hops on packet's way to destination...

[Bill Thorsteinson]

Traceroute may be blocked on firewalls. To see where you pings are going try mtr, which works like traceroute, but uses ping packets.

Ping packets have been blooked on our firewalls since the lastest Windows worm storm.