What is the difference between HSRP & VRRP?
HSRP
* Cisco proprietary
* 1 Active & 1 standby router & 1 or more listening routers
* use virtual ip address as gateway
* hello 3 sec & holddown timer 10 sec
* we can enable preempt manually (standby 1 preempt)
6) multicast at:224.0.0.2 (ver1), multicast at:224.0.0.102 (ver2). Both versions use udp port 1985
VRRP
* open standard (ietf)
* 1 master & 1 or more backup routers
* real ip address can be used (highest ip address of interface)
* 1 sec & hold-down timer 3 sec
* By default preempt is enabled
* multicast at:224.0.0.18 – IP 112