VPN and IPsec [7:23339]

I have some problems with my Ipsec configuration. My configuration is like: Internet---HQ---Internet--Office1 | |InternetOffice2 Between HQ and Office i want to use VPN connection with Ipsec. How should I make connection between Office1 and

Re: VPN and IPsec [7:23339]

For case 1, try having an encrypted GRE tunnel between HQ/Office1 and HQ/Office2. Simply run any routing protocol on these 2 tunnel interfaces and the LANs. For case 2, this should work if you make a static route pointing out for building tunnels, and having the default route pointing to your GRE