limit telnet to a specific ip

[mrmoneymatters]

I have a 1721 as my router going to my isp. Between that router and the lan is a firewall. I want to limit telnet access to the router, only a computer inside my lan should be able to access the router. How do I do that?

Thx for any help.

Network Admin
A+, Network+, MCSA 2000, MCSE 2000
MCSA (2003)

 

[JOAMON]

line vty 0 4
access-class 12 in
password 7 xxxxxxxxxxxxxx
login


access-list 12 permit 192.168.1.0 0.0.0.255

This will only allow telnet access from the subnet in the access-list.
You will probably need set this to the public IP address on your firewall and telnet into the router from the firewall device.

access-list 12 permit 64.100.28.2