source nat on ISR

[nflnetwork]

hi can someone help me with nat statement for isr router. 

LAN > WAN

many to > ONE external IP address

nothing fancy just basic dynamic nat - what would this look like?

do i also require access policy for the same?

thanks, 

[omz]

Hello

Have a look at this - 

https://www.cisco.com/c/en/us/support/docs/ip/network-address-translation-nat/13772-12.html#topic5

Let us know if you still need help :)

Please rate helpful posts / solutions :)

[omz]

If you only have one public IP, overload keyword will be needed to allow NAT to translate multiple inside devices to the single address. Otherwise, you can set up a NAT pool of public IPs.

[jmperlewitz]

many -> 1:

ip access-list extended MY_ACL

permit ip {{VLAN Subnet}} {{Wildcard Mask}} any

!

ip nat inside source list MY_ACL interface GigabitEthernet0/0/2 overload

many -> many:

ip access-list extended MY_ACL

permit ip {{VLAN Subnet}} {{Wildcard Mask}} any

!

ip nat pool NAT_POOL x.x.x.1 x.x.x.31 prefix-length 27

ip nat inside source list MY_ACL pool NAT_POOL overload