chap 20 - HSRP Flashcards
What is the default priority in HSRP?
100
What are 2 reasons to use HSRP version 2?
* support for IPV6 * shorter Hello timer
What are the 4 configuration lines to enable HSRP?
- int gig0/0
- standby version 2
- standby 1 ip 10.1.1.1
- standby 1 priority 110
- standby 1 name MyHSRPGroup
What show command allows you to reconstruct the HSRP configuration?
show standby
What HSRP configuration parameters need to match on both routers?
- same HSRP version
- same group number
- same virtual IP
- virtual IP in same subnet as interface address
- same VLAN
What are 2 symptoms of mismatched HSRP versions?
- both routers go active
- duplicate IP address detected
What is the symptom of a group number mismatch?
- both routers go active
- duplicate IP address detected
What is the symptom of an ACL blocking HSRP messages?
- both routers go active
What is the symptom of having 2 different virtual IPs?
The VIP changes depending on which router is active.
What are the 3 FHRP solutions?
- HSRP
- VRRP
- GLBP
What 2 virtual addresses do all routers in the same HSRP group have?
- virtual IP
- virtual MAC
What is a gratuitous ARP
An ARP reply that is sent without there first being an ARP query.
What is the one command that is necessary to make HSRP work?
standby 1 ip 10.1.1.1