From your drawing I suppose NetX is a layer2 network and it is served by the default gateways R1 and R2.
Also, I suppose NetY has an edge router that connects it to the ISP.
If this is the case, then you can arrange R1 and R2 in an active-standby configuration using HSRP. Users will send their traffic to the virtual ip address of the HSRP group independently of which router is alive.
You can then esablish 2 different IPSec tunnels (preferably GRE over IPSEC so routing protocols can be carried over the connection):
- from R1 to the NetY edge router
- from R2 to the NetY edge router
With this configuration you will have the necessary failover scenario in place.
Hi everyone, I would like to thank you in advance for any help you can provide a newcomer like myself!
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