Natting On Router

[adamgibs7]

Hello,

I have some doubt's about natting.

Which natting is preferred on which such as in ASA Nat 0 is preffereed before static,and static is preferd before Dynamic Natting so what is the sequence of router IOS to choose Natting.

I have a statically natted servers as well as PAT for the local users,I have statically natted server to public IP but servers prefers PAT rather than static NAT what can be the issue?

Thanks,

[Federico Coto Fajardo · Accepted solution]

Hi,

As you mentioned on ASAs you have the following order:

1. NAT 0 with ACLs
2. Static NAT/PAT
   
3. Policy NAT
   
4. Regular NAT/PAT
   

Routers are not as good as ASAs with NAT but static NAT should take precedence over dynamic NAT/PAT

i.e.

ip nat inside source static 10.1.1.1. 200.1.1.1

should take precedence over dynamic NAT/PAT for the 10.1.1.1

Please provide details on the problem that you're having.

Federico.

[adamgibs7]

Hello Dear,

Thanks it solved my problem.