Can't use ftp nat

whhappy · 08-11-2003, 03:16 AM

Two NICs,a real ip and a illegal ip.
By Nat,I can use internet,but i can not use ftp. I don't know what is wrong,

would you help me ?

thank you!

Crashed_Again · 08-11-2003, 05:09 AM

Do you have a firewall running? Some ftps use passive mode which connects on strange ports. This could cause ftp connections to be refused.

whhappy · 08-11-2003, 05:12 AM

Yes,A firewall is running.

what should i do ?

Crashed_Again · 08-11-2003, 05:22 AM

I would shut the firewall down real quick and then see if ftp works. If it does then you know you have to alter the firewall.

whhappy · 08-11-2003, 05:33 AM

if i shut the firewall down,and use a real ip ,i can use ftp in dos mode,but if i use nat server to connect the ftp server ,i get the message "can't build data connection"