RE: NAT To Multiple Outside Interfaces

From: Aamer Kaleem (kaleemaamer@yahoo.com)
Date: Mon Nov 18 2002 - 04:43:36 GMT-3


how about creating two NAT pools (one each for outside
Serial interfaces) and in each NAT pool use the IP
address of the physical interfaces....

Thank you,

Aamer

--- Gary Lileikis <glileikis@rogers.com> wrote:
> I believe this will work. Make sure the new loopback
> interface in in the
> routing process and it's network number is know by
> other routers.
>
> Interface Ethernet 0
> ip nat inside
> ip address 10.0.0.1 255.255.255.0
> !
> !
> Int loop 0
> Ip address 192.168.3.1 255.255.255.0
> !
> Interface Serial 0
> ip nat outside
> ip address 192.68.1.1 255.255.255.0
> !
> Interface Serial 1
> ip nat outside
> ip address 192.68.2.1 255.255.255.0
> !
> ip nat inside source list 1 interface loop 0
> overload
> !
> !
> access-list 1 permit 10.0.0.0 0.0.0.255
>
>
> Regards,
> Gary Lileikis
>
>
> -----Original Message-----
> From: Nate Kleven [mailto:cciemail@intellinet.ws]
> Sent: Sunday, November 17, 2002 2:47 AM
> To: ccielab@groupstudy.com
> Subject: NAT To Multiple Outside Interfaces
>
>
> There is probably a very easy solution to this, but
> it escapes me:
> Router
> 1 has three interfaces, 1 ethernet and 2 serials.
> The ethernet is the
> NAT INSIDE interface. Clients on the inside need to
> be NAT'd for
> request going out both of the serial interfaces.
> How do I do this?
> Normally it would look something like this.
>
>
>
> Interface Ethernet 0
> ip nat inside
> ip address 10.0.0.1 255.255.255.0
> !
> !
> !
> Interface Serial 0
> ip nat outside
> ip address 192.68.1.1 255.255.255.0
> !
> Interface Serial 1
> ip nat outside
> ip address 192.68.2.1 255.255.255.0
> !
> ip nat inside source list 1 interface s0 overload
> !
> !
> access-list 1 permit 10.0.0.0 0.0.0.255
>
>
> In a configuration like this, my traffic would all
> go out Serial O
> because it is the one in the overload statement,
> right? What if I want
> to NAT a packet that is only reachable via serial 1?
> I'm sure I'm
> overlooking the obvious.
>
> Thanks in advance.
>
> Nate



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