Routing over direct connect

[griffith2009]

We have to move some services that are in the Router 5, and they are not can
change the IP addresses.

The computers that are in the lan of the router 1 and 2, see the networks
172.16.18.0/24 and 172.1.1.0/24 through the network segments nat 10.253.18.0/24
and 10.253.1.0/24 respectively.

When we place the segments of networks 172.16.18.0/24 and 172.1.1.0/24 in the Router 7,
I can create routes /32 to the addresses 172.176.18.118, 172.16.18.119, 172.16.18.115,
172.1.1.85; in the router 1 and router 2, ¿does it worked?, despite the fact that the segments
172.16.0.0/16 and 172.1.0.0/16 are directly connected?.

If that does not apply at the earliest said, how  i can maintain the segments
of networks 172.16.18.0/24 and 172.1.1.0/24 in the router 7? .

Annex the diagram of network

[milan.kulik · Accepted solution]

Hi,

I'm not sure if I'm following your idea 100%.

Are you running any dynamic routing protocol in your network?

If yes, why don't you simply advertise 172.16.18.0/24 from your router 7?

Router1 and 2 will use that route, of course (longest match wins).

Or is 172.16.18.0/24 also advertised from router 5 together with the NATed subnets?

In that case, you'd need either to stop that or advertise more specific (host, e.g.) routes from router 7.

BR,

Milan