Want to run NAT on IP from l2tp bridge

RouterOS General
1

Hello,

I have two locations each with a Mikrotik Router

Location A has a single static IP (1.2.3.4) address from the ISP and 100x100 connection.

Location B has a full /24 subnet and a 100x100 connection

The routers are connected with l2tp bridge so I can utilize Location B’s full /24 IP addresses at location A.

It works GREAT. I can assign devices at locaiton A static IP’s from location B and they work perfectly.

Here is the issue…

I also run NAT at location A and it using the main static IP address 1.2.3.4 and I want to do NAT from a IP address at location B. I cannot figure out how to do this. Any tips?

Thanks

Ryan

2

Can’t figure out, as in, haven’t tried at all? Or tried and failed?

3

Hosts that you want to do this behavior, forward them without NAT from Site A to Site B across L2TP tunnel, and configure the NAT at Site B. I suggest that you use mangle table + policy routes so that if the L2TP tunnel fails, these hosts can go out using the regular NAT at site A as a backup.