Routing between 3 Site to Site VPNs (IPSEC)
hopefully everybody is fine. We have the following infrastructure.
Site A 192.168.1.x
Site B 192.168.2.x
Site C 192.168.3.x
Headquarter (HQ) 192.168.10.x
Site A, B and C are connected to HQ via IPSEC. So,
Site A can see HQ and HQ can see Site A.
Site B can see HQ and HQ can see Site B.
Site C can see HQ and HQ can see Site C.
Now we want to configure that
Site A can see Site B and C and HQ
Site B can see Sita A and C and HQ and
Site C can see Site A and B and HQ
Is it possible to configure that. If, which way is recommended?
Yes, that is possible. You just need to add an appropriate set of Phase 2 entries to cover all of the possible paths. For example, on the tunnel between site A and HQ, you need P2 entries for A<->HQ, A<->B and A<->C, and firewall rules to allow what you want to flow in each direction.
Ok, done. P2 configured on HQ and Firewall Rules as well. Do we have to configure something more on the Sites A, B and C? The Sites A, B and C are LANCOM Router.
You need all of the equivalent P2s on each site. They all need to know to send traffic for the other sites to/through HQ.
anybody knows where to configure the P2 entries in a LANCOM Router?