FHRP

Question 1

How does packet forwarding work

Answer 1

arp for local subnet, if on different subnet, will arp for dgw

Question 2

what is a proxy arp?

Answer 2

for hosts that doesn’t understand routing, the DGW is configured to reply with its own mac

Question 3

How does the standby handle ARP issues after it becomes active?

Answer 3

by sending a gratuitous ARP

Question 4

What First Hop Redundancy Protocols are Cisco Proprietary?

Answer 4

HSRP and GLBP

Question 5

What are the three types of First Hop Redundancy Protocols?

Answer 5

-HSRP, Hot Standby Router Protocol-VRRP, Virtual Router Redundancy Protocol-GLBP, Gateway Load Balancing Protocol