Can’t see outside

Windows 2000 Server, SP 4

Machine can ping any resource inside the firewall (including the gateway) by IP or by name.

Machine can not ping anything outside by IP or name. If I ping a name, I do see the proper IP address in the ping attempt, so this does not seem to be a DNS issue.

Router is a Netscreen 10 with no restrictions on outbound traffic.

Any ideas would be greatly appreciated!

Thank you.