Dear All Expert,
I would like to ask you some question about failover for HQ to Branches by VPN connection.
At HQ site i had Cisco router 2821 with Hwic-4ESW and At the Branch site i had Cisco Router 1841 with Hwic-4ESW.
From HQ to Branch we have 2 Wan link (2 ISP, one for Primary link and other one for Bakcup link), when the Primary link donw, the Back up link will be up aotomatically. I would like to ask you about configuration from HQ to Branch by VPN connecion ( primary and Back up link) how can i configure?
Glad that command helping you.
1. Yes, the command must apply to both HQ and Branch. Else your Branch will have return route issue.
2. You can ignore GRE setup. This setup is for complex branch office network, after viewing your network diagram floating static route is the best resolution suit to your network environment.