cisco asa 8.2 nat code examples

You combine the following commands in 8.2 code, in 8.3+ we are just using a NAT command

• nat
• global
• static

Global NAT for internet access

nat all 10.0.0.0/24 traffic from inside to NAT ID "1"

nat (inside) 1 10.0.0.0 255.255.255.0

On NAT ID "1" nat all traffic behind the outside interface

global (outside) 1 interface

Static nat for giving a server a public IP

static (inside,outside) 100.100.100.10 192.168.1.100

access-list 100 permit tcp any host 100.100.100.10 eq https

access-group 100 in interface outside

 

Create ACL to match traffic to be NAT'd for nat hide for VPN

access-list policy-nat extended permit ip 172.16.1.245 255.255.255.255 213.168.225.149 255.255.255.255

access-list policy-nat extended permit ip 172.16.1.245 255.255.255.255 217.114.160.101 255.255.255.255

Nat traffic matched with the ACL to NAT ID "2"

nat (public) 2 access-list policy-nat

Define what IP NAT id "2" should be nat'd to on the outside interface

global (outside) 2 172.16.1.242

select traffic, nat, define what IP to nat to 🤷

static port nat on cisco router

Label your interfaces
int dialer 1
ip nat outside

int inside
ip nat inside

ip nat inside source static tcp 192.168.4.10 8080 interface dialer 1 8080


This will nat the public IP of dialer1 port 8080 to 192.168.4.10 port 8080