How to forward ip addresses?

Question

linux

How to forward an ip address to another machine
The scheme is as follows: 2 servers in different Data Centers are connected by a gre tunnel to the
server ( DC1 server # 1 ) given addresses 8.8.8.8 and 8.8.4.4 It is
necessary to raise the interface with the address 8.8.4.4 on the machine ( DC2 server # 2 )

I suspect that you need to drop in the direction of ebtables and forward the mac address (NAT)

ebtables -t nat -A POSTROUTING -s $MAC_SERVER2 -j snat --to-source $MAC_SERVER1
ebtables -t nat -A PREROUTING -d $MAC_SERVER1 -j dnat --to-destination $MAC_SERVER2

but there is no success in this direction.
Tell me how to cope with such a task?
thanks in advance.

Answer 1

Lived up. Google consults on toaster :)

Answer 2

I think that it is worth forwarding all traffic in general bypassing 1 server, so as not to write a bunch of rules for Iptables.
try to use VLAN. so you get rid of mixing packages inside GRE.

Answer 3

something like this