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Problems with Telnet

Ben05
Level 1
Level 1

Not sure if this is in the right section?

I am having problems with the telneting the router in my network.

There are about 10 sites with routers, i remotely conenct to different sites throught there servers. I connect to a server and then run a telnet session to try and connect to the router but everytime i try says "router unavailable on port 23". There is only one router out of the whole ten i can telnet to from the local server. I need to be able to telnet from the local server and from the servers in the main base.

Here is the config for the routers that i cant telnet to, the second config is for the router i can telne to locally.

1st>>>

line vty 0 4

access-class 70 in

exec-timeout 0 0

password 7 (*************)

transport input ssh

access-list 70 remark Modem Management

access-list 70 permit 10.0.0.0 0.0.255.255

access-list 70 permit 10.10.0.0 0.0.255.255

2nd>>>>>> i can telnet to

line vty 0 4

access-class 70 in

exec-timeout 0 0

password 7 (**************)

transport input ssh

access-list 70 remark Modem Management

access-list 70 permit 10.0.0.0 0.0.255.255

access-list 70 permit 10.10.0.0 0.0.255.255

I didnt originally setup routers and only have to get them telneting so i can then hand the service of them to new company.

Cant understand why not working, if unable to resolve soon i have many old pcs laying around to use a deticated pcs to connect up the router directly through console port but would just like to have telnet.

Thanks

5 Replies 5

seanm
Level 1
Level 1

I am not entirely clear on your situation. It sounds like you can connect to 9 of the 10 routers. For the one you cannot connect to, I would guess there is a firewall or some other device blocking access to port 23.

I cant connect to 9 out of the 10 routers from the server at that site. Cant connect to any from the main site. There are no firewall restrictions, if there was i would still be able to telnet from the local server i think?, but have made sure no firewall restrictions. Was wondering if there are any timeouts.

I didnt set these routers up and we have had a few other issues that were hard to work out because of the person who configured.

take of the transport in ssh, you dont need it and it could be restricting your telent... ssh is NOT telnet

You config only permits ssh, but instead of permitting telnet if I dont have to I would keep "transport input ssh" and use openssh or putty to hit my routers.. Why have your ID/Password cleartext if you dont have to?

http://kputty.sourceforge.net/ kputty for linux

http://putty.bhni.net/ windows putty

Your config only permits ssh, but instead of permitting telnet if I dont have to I would keep "transport input ssh" and use openssh or putty to hit my routers.. Why have your ID/Password cleartext if you dont have to?

http://kputty.sourceforge.net/ kputty for linux

http://putty.bhni.net/ windows putty

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