Topic '[Config] [Cisco 1921] Outgoing NAT - Source NAT depending on the' in forum 'Cisco' - dslreports.com

Re: [Config] [Cisco 1921] Outgoing NAT - Source NAT depending on

Tue, 20 Mar 2012 11:28:22 EDT

RyanG1 posted : You may have to play around with ip nat outside instead of my previous post ip nat inside.

Change the outgoing ip using source nat. forgot about that...

ex:

ip nat outside source list 100 pool pool1

You may also need to change a few access-lists etc but i dont have anything to test this with at the moment as im at work.

Ryan

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Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so. -Douglas Adams

Re: [Config] [Cisco 1921] Outgoing NAT - Source NAT depending on

Tue, 20 Mar 2012 09:57:30 EDT

anon posted : Hey,

That you for answering... I had to wait before I could test.
...but it doesn't work.

I'm clueless now, and can't figure out how I can do that...
Any idea?

Thanks,
Mathieu.

Re: [Config] [Cisco 1921] Outgoing NAT - Source NAT depending on

Sat, 17 Mar 2012 00:45:05 EDT

RyanG1 posted : ive never tried this so it may not work that and im exhausted but maybe:

access-list 100 permit ip 192.168.0.0 0.0.0.255 host 9.9.9.9access-list 101 deny ip 192.168.0.0 0.0.0.255 host 9.9.9.9access-list 101 permit ip 192.168.0.0 0.0.0.255 any ip nat pool pool1 1.0.0.2 1.0.0.2 netmask 255.255.255.255ip nat inside source list 100 pool pool1ip nat inside source list 101 interface GigabitEthernet0/1 overload

Ryan

--
Human beings, who are almost unique in having the ability to learn from the experience of others, are also remarkable for their apparent disinclination to do so. -Douglas Adams

[Config] [Cisco 1921] Outgoing NAT - Source NAT depending on the

Fri, 16 Mar 2012 19:07:35 EDT

anon posted : Hi all,
I found great resources on dslreports.com to configure a 1921 router. Thanks to all!

One thing I could not find over the internet is how to source nat+pat a packet with different public ip depending on the destination.

I mean: default public IP (1.0.0.1) is used for outgoing connections, using overloading:

interface GigabitEthernet0/0 description LAN-Gi0/0 ip address 192.168.0.1 255.255.255.0 ip nat inside!interface GigabitEthernet0/1 description WAN-Gi0/1 ip address 1.0.0.1 255.255.255.248 ip nat outside!ip nat inside source list 10 interface GigabitEthernet0/1 overloadaccess-list 10 permit 192.168.0.0 0.0.0.255

That works.

BUT: While outgoing to a specific destination (let's say 9.9.9.9/32), I need to use another public IP: 1.0.0.2
How would you do that?

As I became hopeless to find any way to do that using ip nat, I was thinking of using loopback address, or some route-map...?

Thanks!
Mathieu.