cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
1259
Views
0
Helpful
3
Replies

Destination IP NAT - duplicated networks

francisfox
Level 1
Level 1

We have 3 duplicated networks representing different reference rigs and we wish the IP address scheme to be the same on each, 192.168.10.0/24 (see attached pic).  We have developments hosts on the 10.10.10.0/24 network that need to be able to address any of the rigs, via 192.168.50.0/24, 192.168.60.0/24 and 192.168.70.0/24. We wish to NAT the destination address on the routers connected to the reference rigs.  If the dev host addresses server 192.168.50.1, should I be able to NAT the destination address on the router to 192.168.10.1? The NAT'ing needs to be static so 50.1 NATs to 10.1, 50.2 NATs to 10.2 etc.

I have tried the following config on a router but it doesn't work

int gi0/0

ip address 192.168.50.254 255.255.255.0

ip nat inside

int gi0/1

ip address 192.168.10.254 255.255.255.0

ip nat outside

access list 1 permit 192.168.50.101 0.0.0.0

ip nat pool FRED 192.168.10.1 192.168.10.1 prefix-length 24 rotary

ip nat inside destination list 1 pool FRED

I think I'm missing something fundamental here. Any help appreciated

Francis

3 Replies 3

lgijssel
Level 9
Level 9

Using a NAT pool with static xlates does not provide the desired relation between dest addr and its nat dest address.

You can better configure static translations like this:

ip nat inside destination static

Even when you have a large amount of servers, this will be the easiest to maintain because you can hardcode the translation.

http://www.cisco.com/en/US/technologies/tk648/tk361/tk438/technologies_white_paper09186a0080091cb9.html

regards,

Leo

Hi Leo

We are using 3825 routers with advipservices and they do not support ip nat inside destination static, they only support ip nat inside destination list ...

Francis

Hi All,

i am also looking for the same type of solution , it would be great if any one help us to find that ip nat inside destination static command can use in which cicso model device or software..

i have search in the cisco device & ios support website but unable to find the exact information.

http://tools.cisco.com/ITDIT/CFN/

Thanks & Regards,

Shaik Raffath.

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community:

Review Cisco Networking products for a $25 gift card