In the previous question I have been trying to optimize switching topology.
Now I would like to implement redundancy. And here are the problems I faced.
Assuming the following topology
As routers we use Mikrotik. Switches are cisco.
Redundancy between two routers will be achieved through VRRP. Unfortunately I can't understand how I can establish NAT after.
We have /28 public address range. It is obvious that both Mikrotiks have to have the IPs from our public range to use the CPE as gateway. VRRP will be inside the network (private). This part is easy and clear.
But then, how to make NAT. While on both Mikrotiks I have to mirror the configuration, thus both will have the same IP addresses in the public range (I had to configure all the list of IPs in order to implement dst-nat).
And from here I can't imagine how should I implement this.
I was thinking about making VRRP inside our public range. But can't yet make a proper picture of the implementation. Or do I need to create two VRRPs, inside and outside the network?
How does usually configuration of a such network topology looks?