There are tcp-tunnel solutions that use redundant sessions, sometimes even replicated proxies. This is one of them but YMMV. http://blog.ine.com/2008/11/06/ips

There are tcp-tunnel solutions that use redundant sessions, sometimes even replicated proxies. This is one of them but YMMV. http://blog.ine.com/2008/11/06/ipsec-vpn-high-availability-with-hsrp/ http://blog.ine.com/2008/11/06/ipsec-vpn-high-availability-w...