Mike,

Your issue may be in regard to the interface specified.
I just answered another one of these, so I'll reuse some
of the text.

Your note shows this:
# route add default gw 192.168.4.1

Try this:
# route add default gw 192.168.4.1 hme0

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To keep these settings for future use, try one of these:

1) You may want to add your 'route' command to
this file: /etc/rc.d/init.d/network
The 'route' command is the final line in
my '/etc/rc.d/init.d/network' file, for instance.

2) Optionally, you might edit the
'GATEWAY=' property in the
'/etc/sysconfig/network' file.

So:
Given that your IP address is
206.10.25.251 (spam.com's IP), for instance

"GATEWAY=206.10.25.1" would be the correct
entry for spam.com's default gateway.
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I'm not much of a network geek, but this should
help, regardless.

Larry (Zeeb).