Quick Notes - HSRP

Use UDP as transport protocol

(IPv4) = port 1985
(IPv6) = port 2029

[Multicast address]

V1 = 224.0.0.2
V2 = 224.0.0.102
TTL = 1

[Mac Address Format]

• 0000.0C07.ACxx for HSRP version 1 for IPv4
• 0000.0C9F.Fxxx for HSRP version 2 for IPv4
• 0005.73A0.0xxx for HSRP version 2 for IPv6

xx is the group number

> High priority Wins
> Equal priority? High IPAddress Wins

RFC 2281

.!!!!

biOos