Hi,
I think this is expected behavior.
Note: VRRP enables redundancy for tunnel connections only. Therefore, if a VRRP failover occurs, the backup only listens to tunnel protocols and traffic. Pinging the VPN Concentrator does not work. Participating VPN Concentrators must have identical configurations. The virtual addresses configured for VRRP must match those configured on the interface addresses of the Master.
Please refer the below URL for details:
http://www.cisco.com/en/US/products/hw/vpndevc/ps2284/products_tech_note09186a0080094490.shtml
Regards,
Arul
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