Which term describes first hop gateway redundancy by sharing a virtual IP across routers so clients can always reach a gateway?

Which term describes first hop gateway redundancy by sharing a virtual IP across routers so clients can always reach a gateway?

• A. VRRP
• B. HSRP
• C. FHRP
• D. GLBP

Answer: (C)

Providing a reliable default gateway at the first hop is accomplished with a First Hop Redundancy Protocol. This approach has multiple routers share a single virtual IP address that represents the gateway for clients. One router is active and forwarder for that virtual IP, while the others stay ready to take over if the active router fails, ensuring continuous reachability to the gateway without changing the client configuration. The term describes this overall concept of gateway redundancy, and specific implementations like VRRP, HSRP, and GLBP are examples of how it’s carried out. VRRP creates a master and backups, HSRP provides a Cisco-style alternative with similar behavior, and GLBP adds the ability to balance traffic across multiple routers while still presenting one gateway to hosts.

Providing a reliable default gateway at the first hop is accomplished with a First Hop Redundancy Protocol. This approach has multiple routers share a single virtual IP address that represents the gateway for clients. One router is active and forwarder for that virtual IP, while the others stay ready to take over if the active router fails, ensuring continuous reachability to the gateway without changing the client configuration. The term describes this overall concept of gateway redundancy, and specific implementations like VRRP, HSRP, and GLBP are examples of how it’s carried out. VRRP creates a master and backups, HSRP provides a Cisco-style alternative with similar behavior, and GLBP adds the ability to balance traffic across multiple routers while still presenting one gateway to hosts.