I've got a 7200 router with two 10/100 int's on the inside and a T1 to the Internet. I use my public IP addresses internally so I am not NAT-ing. I want to bring up the 2nd 10/100 inside interface and set up a 192.168.0.0 subnet and have that NAT'd on the 7200. Can I have only the one inside interface doing NAT? What happens to traffic destined for the non-NAT'd internal subnet when the T1 interface has an "ip nat outside" command? Will this cause any problems?
NAT only occurs on traffic going between an "inside" interface and an "outside" interface. Therefore, traffic coming into the "outside" interface and destined for the non-NATed subnet will not be NAT'ed, while packets coming into the "outside" interface destined for the inside, NAT'ed, subnet will be. Assuming that you take care to direct incoming traffic towards the proper interface, you should not have any problems.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.