Hot Standby Router Protocol (HSRP) is a CISCO proprietary protocol used to provide redundancy in a network. Besides VRRP not being proprietary, there are a few minor differences between the protocols as well: With HSRP, each interface must have an IP address that is. Configuring HSRP, VRRP, and GLBP. HSRP stands for Hot Standby Routing Protocol. The following chart provides difference HSRP Vs VRRP Vs GLBP protocols. In an HSRP or VRRP group, one router is elected to handle all requests sent to the group IP address.