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Our company has a block of real ip addresses 91.xxx.xxx.0/24 and have bgp sessions with 2 upstream ISPs. The problem I ran into is that we need to configure static nat on a cisco router, so that 2 servers (10.10.20.10 and 10.10.20.10) were available from the internet with addresses 91.xxx.xxx.10/27 and 91.xxx.xxx.11/27 respectively.

Below is our network diagram. We use bgp with 2 ISPs. We use /30 networks for each upstream connection. Inside we use 10.10.1.0/24 for our dmz.

I want to know if it is possible to arrange static nat translation in such scenario. I will welcome any advice.

my network

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What Cisco router ? –  adaptr Feb 21 '12 at 9:37
    
cisco router 3925sec/k9 –  Alec T Feb 21 '12 at 9:55
    
I know that on an ASA, you can freely NAT the same adress to multiple interfaces. However, PIXOS isn't IOS... –  adaptr Feb 21 '12 at 9:57
    
after googling for a while I've found some remote examples using loopback interface and policy routing but I don't know if I'm on the right path yet. –  Alec T Feb 21 '12 at 10:28
2  
You shouldn't have a problem setting "ip nat outside" on both gi0/0 and gi0/1 and everything should work. Are you using a dynamic routing protocol or are you load balancing across these 2 ISPs? –  resmon6 Feb 21 '12 at 16:42

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