GRE over IPSEC Configuration for two remote offices
Posted on 2006-03-22
How do I configure a GRE tunnel to link two remote offices together while sending the traffic using a IPSEC to provide the maximum security and encryption for the traffic being passed over the internet. I am proposing to use routers on both sides which have been configured with public addresses on their outside interfaces and diverse private networks on their inside interfaces. Router A has a 10.1.x.x set of networks behind it, Router B has a set of 135.209.x.x set of networks behind it.