cvsup in LAN?

[Yuan Jue]

hey, all.

Recently I account a problem about using cvsup. I wanna use cvsup to 
upgrade my ports tree, but I cannot connect to any cvsup website.

The situation is my IP address is 192.168.*.*, which seems to be a NAT
IP address. And I guess the LAN administrator may close some ports to
prevent some kind of unknown danger...

Any suggestions to get around this? thanks in advance
 
-- 
Best Regards.
Yuan Jue