topic Re: ASA basic question in Network Security

ASA basic question

Haris P — Mon, 11 Mar 2019 13:25:44 GMT

I have a basic question , please answer it

What will happen if I put like given below in my ASA ?

nat (inside) 1 10.1.40.202 255.255.255.255 0 0

global (outside) 1 202.25.25.65 netmask 255.255.255.255

static (inside ,outside) 202.25.25.66 10.1.40.202 netmask 255.255.255.255 255 0

Whether it means that from inside to outside my local IP will go as 202.25.25.65 and from outside to inside it will be 202.25.25.66 ? Is it correct , please let me know

Re: ASA basic question

m.sir — Tue, 05 Aug 2008 07:51:25 GMT

its true if those commands are used separately but if you using both commands at same time static take precedence and host 10.1.40.202 will go outside as 202.25.25.66 (otherwise it would be asymmetric - outside host would start communication with 202.25.25.66 and answer would come from 202.25.25.65 - its not possible)

Hope that helps rate if it does

Re: ASA basic question

dhananjoy chowdhury — Tue, 05 Aug 2008 08:01:57 GMT

For the IP 10.1.40.202 traffic going outside will be seen as source 202.25.25.66

Also traffic coming to the IP 202.25.25.66 will be redirected to the IP 202.25.25.66 , provided there is an Access-list allowing that traffic.

Static NAT will be more prferred.