I have two IP's Configured on my Cisco 2800. 184.108.40.206 - Loopback and 220.127.116.11 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.
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