How to configure static routes to other end of VPN tunnel
Posted on 2007-08-07
We have 4 locations that are linked with Linksys RV042 routers using VPN tunnels between locations. These work OK but we are having trouble routing to certain subnets. The layout is:
Branch 1: Cisco router (10.61.124.1) to data services provider (10.46.0.0 and 10.46.240.0 traffic), Linksys RV042 router(10.61.124.2) to ISP for Branch 1 internet access, and VPNs to Branches 2,3,4. Static routes Branch 1: 1.Cisco router to turn away all traffic NOT 10.46.0.0 255.255.252.0 and 10.46.240.0 255.255.255.128 and 2. RV042 to route traffic 10.46.0.0 and 10.46.240.0 to the Cisco router.
Branch 2: RV042 to ISP for internet access for Branch2, VPN to Branch 1and Branch 3
Branch 3: RV042 to ISP for internet access for Branch 3, VPN to Branch 1 and Branch 2
Branch 4: RV042 to ISP for internet access for Branch4, VPN to Branch 1. Router IP addr 10.58.91.242
Here is our problem. We need Branch 4 to route 10.46.0.0 and 10.46.240.0 traffic back to the Cisco router in Branch 1.
We tried adding a Static Route (destination: 10.46.240.0, netmask: 255.255.255.128 gateway: 10.61.124.1) to the Branch 4 routing table, but it doesn't work. A similar static route was attempted to be added to the Windows 2000 workstation at Branch 4 and this produced an error mesage: "The route addition failed: Either the interface index is wrong or the gateway does not lie on the same network as the interface. Check the IP Address Table for the machine."
How can we get 10.46.0.0 and 10.46.240.0 traffic from Branch 4 to Branch 1 Cisco router and not screw up the VPNs or internet acces for Branch 4?
Thanks in advance.