I have an Active/Standby pair of ASA5510 firewalls, configured for ISP failover and I have IPsec L2L tunnels to my two remote sites. The remote sites also have Active/Standby 5510s. If my primary ISP connection fails over to the secondary ISP, what is the effect to my L2L tunnels? Do the clients using the tunnel notice any disruption of service? Do the sessions maintain state, or are re-connections necessary?
Thanks in advance,