How to restrict the IPs that can connect

IM-Design · ‎01-17-2006

Hi,

I have a 1811 router and 5 routable (public) ips. On one of these addresses I need to allow a remote user to connect, but I also need to restrict connectivity by that users IP.

Id prefer to use SDM, but would like to know how to do so from IOS as well.

Thanks

olorunloba · ‎01-17-2006

Well, you will be using an access-list to achieve this. By using an extended access-list, you can specify the source ip address (the ip of the remote user) and the destination (your ip). Something like

access-list 101 permit ip host host .

This is then applied as an inbound access-list to the WAN interface.

As I'm not aware of your other requirements, I can not help you further with the access-list configuration.