HSRP allows two or more
HSRP-configured routers to use the MAC
address and IP network address of a
virtual router.
It works really the same as two, except instead of 1 in two holding the virtual ip, 1 in 3 will hold the virtual IP. By setting priorities, you can set preferences as to which will have it when all three are up, or if only two are up.
Yes, it is perfectly possible. From Cisco's HSRP documentation:
It works really the same as two, except instead of 1 in two holding the virtual ip, 1 in 3 will hold the virtual IP. By setting priorities, you can set preferences as to which will have it when all three are up, or if only two are up.