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OSPF advertise NAT pool

Gerard Gasca
Level 1
Level 1

                   Hi, maybe I'm not searching for the correct terms but I couldn't find anything on this. I have an ASA 5550 and it forms adjacency fine with 4 routers but I can't get it to advertise it's NAT pool addresses to the routers.

Say the NAT pool is 10.1.1.0/24 .  I entered the network statement for that network in the OSPF section. Am I missing something?

Thank you,

Gerry

4 Replies 4

Kyle McKay
Level 1
Level 1

This is not possible, unfortunately. When you enter the network command in OSPF referencing the NAT IP Pool, the OSPF conditions will not be met, mainly; having an Up/Up interface in that network.

If you really need to advertise the network via OSPF, you can create a static route and redistribute it through OSPF. I believe that is your best bet.

Thanks Kyle I'll give that a shot.

  1. Add a static route to Nat Pool:
    ciscoasa(config)# route Null0 10.1.1.0 255.255.255.0 1
  2. In the ospf process add active redistribution static routes
    ciscoasa(config)# router ospf 1
    ciscoasa(config-router)# redistribute static metric 1 subnets

Hello

FUI - If  10.1.1.0/24 isn’t in the route table ospf will not advertise it

 

res

Paul

 

 


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Kind Regards
Paul
Review Cisco Networking products for a $25 gift card