[c-nsp] Problem with a nat configuration.

Ross Halliday ross.halliday at wtccommunications.ca
Tue Oct 2 11:47:35 EDT 2012


> From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-
> bounces at puck.nether.net] On Behalf Of Samuel Catheline
> Sent: Tuesday, October 02, 2012 3:05 AM
> To: cisco-nsp at puck.nether.net
> Subject: [c-nsp] Problem with a nat configuration.
> 
> Hello,
> 
> I have a nat configuration problem, with a static NAT, I want exlude to
> the static nat(192.168.10.1<->217.112.66.70) the trafic to the subnet
> 10.0.13.0/24 and nat this trafic with the loopback1.
> Is there an issue?
> 
...
> PS: I'm working with a Cisco 877:
> Cisco IOS Software, C870 Software (C870-ADVSECURITYK9-M), Version
> 12.4(15)T12, RELEASE SOFTWARE (fc3)

Does your 877 support NVI? (NAT Virtual Interface) This should be able to get around your problem. 

http://blog.ine.com/2008/02/15/the-inside-and-outside-of-nat/
http://www.cisco.com/en/US/docs/ios/12_3t/12_3t14/feature/guide/gtnatvi.html

Cheers
Ross



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