300-360 · Question #191
You must optimize an IPv6 wireless design to ensure that RA packets from routers can be trimmed to a minimum frequency that still maintains IPv6 client connectivity. Which configuration do you use?
The correct answer is A. RA throttling. IPv6 Router Advertisement (RA) packets are sent by routers to advertise prefixes and default gateways for Stateless Address Autoconfiguration (SLAAC). In wireless environments, excessive RAs generate unnecessary multicast traffic that can consume airtime and cause issues at…
Question
You must optimize an IPv6 wireless design to ensure that RA packets from routers can be trimmed to a minimum frequency that still maintains IPv6 client connectivity. Which configuration do you use?
Options
- ARA throttling
- BAAA Override for IPv6 ACLs
- CIPv6 ACLs
- DRA guard
How the community answered
(30 responses)- A80% (24)
- B7% (2)
- C3% (1)
- D10% (3)
Explanation
IPv6 Router Advertisement (RA) packets are sent by routers to advertise prefixes and default gateways for Stateless Address Autoconfiguration (SLAAC). In wireless environments, excessive RAs generate unnecessary multicast traffic that can consume airtime and cause issues at scale. RA throttling (supported on Cisco WLCs) rate-limits RA messages-suppressing redundant RAs while ensuring at least a minimum rate is forwarded to maintain client IPv6 connectivity and address renewal. RA guard (D) is a security feature that blocks unauthorized RA messages from rogue devices but does not regulate frequency from legitimate routers. IPv6 ACLs (C) and AAA Override for IPv6 ACLs (B) are used for traffic filtering and policy enforcement, not RA rate management.
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