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Telnet problem for Cisco AS 2511-RJ Terminal server

jchun jchun is offline
Junior Member
Join Date: May 2006
Posts: 1
Today I just registered in this group.
I am a very beginner of the CISCO products.
I spent lots of time to figure it out.
Experts~ please help me!!

I can ping and telnet to terminal server in my network.
However, when I am trying to telnet to a device through specific ports.
When I do, "telnet 2003",
(I tried to connect to the Linux machine and Cisco PIX firewall.I can telnet to the Linux machine.)

Sometimes I see just a black screen or I get "Could not open connection to the host, on port 2003: Connect failed "

Here is a my file.
Could you please tell me what the problem is?
I really appreciate it!!!

version 12.0
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
hostname AT&T-cage-TERM-SERVER
enable secret 5 $1$bnTL$TtRl6whMdRREKLV.dfsdfe
enable password test
ip subnet-zero
no ip routing
ip host r1 2001
ip host r2 2002
ip host r3 2003
ip host r4 2004

interface Loopback1
ip address
no ip directed-broadcast
interface Ethernet0
ip address
no ip directed-broadcast
no ip route-cache
no ip mroute-cache
interface Serial0
no ip address
no ip directed-broadcast
no ip route-cache
no ip mroute-cache
ip classless
snmp-server community public RO
line con 0
transport input none
line 1 16
transport preferred telnet
transport input all
line aux 0
line vty 0 4
password test
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