Hi,

I have two IP's Configured on my Cisco 2800. 1.1.1.1 - Loopback and 2.2.2.2 on Fast Ethernet. Both IP's are pingable across the WAN. And telnet to loopback IP is working fine. However I am unable to telnet to Fast Ethernet IP. The error message while trying to telnet to Fast Ethernet IP is: "Could not open connection to the host, on port 23: Connect failed". I tried to debug telnet on the router. The Debug output for unsuccessful telnet is as follows:

_______________________________________

Telnet194: recv SB NAWS 139 24

_______________________________________

However for a successful telnet session, the output is:

Telnet195: 1 1 251 1

TCP195: Telnet sent WILL ECHO (1)

Telnet195: 2 2 251 3

TCP195: Telnet sent WILL SUPPRESS-GA (3)

Telnet195: 80000 80000 253 24

TCP195: Telnet sent DO TTY-TYPE (24)

Telnet195: 10000000 10000000 253 31

TCP195: Telnet sent DO WINDOW-SIZE (31)

TCP195: Telnet received DO ECHO (1)

TCP195: Telnet received DO SUPPRESS-GA (3)

TCP195: Telnet received WILL TTY-TYPE (24)

Telnet195: Sent SB 24 1

TCP195: Telnet received WILL WINDOW-SIZE (31)

Telnet195: recv SB NAWS 110 52

Telnet195: recv SB 24 0 ANSI

_______________________________________

There are no ACL's or firewalls involved in the picture.

_______________________________________