Your question is very vague, and you do not provide enough information....

Do you mean that you are trying to connect to a machine on the internet (i.e. "browse" it) but aren't having any luck?

If so, your problem could be that you do not have a default gateway set (i.e. the IP address of the machine with the modem, or router, or whatever).

Type "route" at the command line and post the output. (This is the Linux form of the command, Solaris might need an option to the command)

Also, trying pinging "yahoo.com" as they return ICMP packets.

Cheers
ZB