troubleshooting Question

Cisco 1941 permit PAT from multiple IPs

Avatar of Divya Bhatia
Divya BhatiaFlag for Australia asked on
NetworkingNetwork ManagementNetwork Security
5 Comments1 Solution400 ViewsLast Modified:
Hi people,

So I have a public facing 1941 router with a Sec License. One of the ports that needs to be port forwarded can only be accessible to a range of Public IP's for security purposes ie – I'm opening up LDAP from the server to the internet.

So I am trying to think how to do this...
So... because I didnt explain myself very well.. I will show you what I want

ip nat inside source static tcp 10.1.1.5 389 interface GigabitEthernet0/0 389

But only allow a few public IP's to access this port forward.

I prepared this, but I do not think it will work... so I'm not going to implement. Critique away, config in next post

ip nat inside source static 10.1.1.5 389 interface gigabitethernet0/0 389 route-map GFI

Route-map GFI permit 10
match ip address EXTERNAL-PERMITS

ip access-list extended EXTERNAL-PERMITS
permit ip 5.10.67.0 0.0.0.255 any
permit ip 92.51.176.0 0.0.0.255 any
permit ip 94.186.192.0 0.0.0.255 any
permit ip 174.36.154.0 0.0.0.255 any
permit ip 192.69.16.0 0.0.0.255 any
permit ip 192.69.17.0 0.0.0.255 any
permit ip 192.69.18.0 0.0.0.255 any
permit ip 192.69.19.0 0.0.0.255 any
permit ip 208.43.37.0 0.0.0.255 any
permit ip 208.70.88.0 0.0.0.255 any
permit ip 208.70.89.0 0.0.0.255 any
permit ip 208.70.90.0 0.0.0.255 any
permit ip 208.70.91.0 0.0.0.255 any
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