350-401 · Question #480
Refer to the exhibit. An engineer configures a new HSRP group. While reviewing the HSRP status, the engineer sees the logging message generated on R2. Which is the cause of the message?
The correct answer is A. The same virtual IP address has been configured for two HSRP groups. The logging message on R2 indicates a severe HSRP configuration conflict, specifically that the same virtual IP address is being used by two distinct HSRP groups.
Question
Refer to the exhibit. An engineer configures a new HSRP group. While reviewing the HSRP status, the engineer sees the logging message generated on R2. Which is the cause of the message?
Exhibits
Options
- AThe same virtual IP address has been configured for two HSRP groups
- BThe HSRP configuration has caused a spanning-tree loop
- CThe HSRP configuration has caused a routing loop
- DA PC is on the network using the IP address 10.10.1.1
How the community answered
(35 responses)- A66% (23)
- B9% (3)
- C6% (2)
- D20% (7)
Why each option
The logging message on R2 indicates a severe HSRP configuration conflict, specifically that the same virtual IP address is being used by two distinct HSRP groups.
Configuring the same virtual IP address for two different HSRP groups on separate logical or physical interfaces causes a conflict where multiple groups attempt to claim the same shared gateway IP, leading to instability and logging messages indicating a duplicate address detection.
HSRP is a first-hop redundancy protocol and, by itself, does not directly cause spanning-tree loops, which are typically a Layer 2 issue related to switch port configuration or cabling.
HSRP manages the default gateway for end devices and does not inherently cause routing loops; routing loops are usually a Layer 3 issue related to misconfigured routing protocols or static routes.
While a PC using a critical IP address could cause network problems, the error specifically points to an HSRP configuration issue where the virtual IP is duplicated across groups, not a simple host IP conflict.
Concept tested: HSRP virtual IP address conflict
Source: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipapp_fhrp/configuration/xe-3s/fhrp-xe-3s-book/fhrp-hsrp.html
Topics
Community Discussion
No community discussion yet for this question.

