Fabio, If you want to telnet the router you have to know the dialer ip address (after negotiation). In the following expample you are opening a telnet session to 1660 port: ip nat inside source list # inferface dialer0 overload ip nat inside source static tcp (eth0 ip address) 23 (dialer0 ip address) 1600 extendable This is the configuration I set for Balassone, for troubleshooting purposes, maybe we are talking about the same customer: isn't it? Ciao, Teresa P.S. keep in mind: dialer interface will negotiate a different IP address to the next connection ----- Original Message ----- From: FC To: [EMAIL PROTECTED] Sent: Wednesday, September 26, 2001 4:13 PM Subject: Telnet listening port [7:21138] Sorry in advance for the monkey question...I'd like to Pat the 23 port of my Dialer interface (ip negotiated) to the inside lan. I am able to do this, but obviosly I lost the connection with the router from outside. There's a command to change the listening telnet port on the vty lines? I have a 827 with 12.0(3). Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=21178&t=21138 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]