We use ASA firewall at many of our offices to provide S-S IPSEC VPN connectivity to our customers.Typically we need to establish S-S vpn to two different sites at customer end, one being primary and other being backup.Both tunnels need to have the same VPN parameters including encryption domain.Offcourse, the only difference between the tunnels will be peer ip.We build VPN config just by adding the backup peer ip in the same crypto map.The failover doesnt work automatically. Even if the primary tunnel goes down, the backup tunnel doesnt get established and traffic dont pass through it.The firewall has only static route for peer ip's. Please suggest if there is a better way to handle VPN failover for the above requirement.
Thanks in advance.
crypto map ciscovpn 1 match address ciscoacl
crypto map ciscovpn 1 set peer 220.127.116.11 <<PRIMARY PEER>>
crypto map ciscovpn 1 set peer 18.104.22.168 <<BACKUP PEER>>
crypto map ciscovpn 1 set transform-set ciscocts
crypto map ciscovpn 1 set security-association lifetime seconds 28800
crypto map ciscovpn 1 set security-association lifetime kilobytes 4608000
crypto map ciscovpn interface inside