350-401 · Question #963
By default, which virtual MAC address does HSRP group 12 use?
The correct answer is A. 00:00:0c:07:ac:0c. HSRP (Hot Standby Router Protocol) uses a standardized virtual MAC address format where the last part of the address corresponds to the HSRP group number.
Question
By default, which virtual MAC address does HSRP group 12 use?
Options
- A00:00:0c:07:ac:0c
- B00:05:5e:00:0c:12
- C00:5e:0c:07:ac:12
- D05:43:84:57:29:2c
How the community answered
(24 responses)- A92% (22)
- C4% (1)
- D4% (1)
Why each option
HSRP (Hot Standby Router Protocol) uses a standardized virtual MAC address format where the last part of the address corresponds to the HSRP group number.
The default virtual MAC address for HSRP groups follows the format 00:00:0C:07:AC:XX, where XX represents the HSRP group number in hexadecimal. For HSRP group 12, the hexadecimal equivalent is C, thus the virtual MAC address is 00:00:0c:07:ac:0c.
The MAC address format 00:05:5e:00:01:XX is typically used by VRRP (Virtual Router Redundancy Protocol), not HSRP.
This MAC address format does not conform to the standard HSRP virtual MAC address derivation.
This is a random MAC address and does not correspond to any standard virtual MAC address for first-hop redundancy protocols.
Concept tested: HSRP default virtual MAC address
Source: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipapp_fhrp/configuration/xe-16/fhrp-xe-16-book/fhrp-hsrp.html
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