Brocade Network OS Command Reference v4.1.0 - Manual (Page 441)

Network OS Command Reference 403
53-1003115-01
ipv6 ra-guard
2
ipv6 ra-guard
Protects against malicious Router Advertisements (RAs).
Synopsis ipv6 ra-guard
no ipv6 ra-guard
Operands None
Defaults None
Command Modes Interface configuration mode
Description Use this command to protect against malicious Router Advertisements (RAs).
When operating IPv6 in a shared Layer 2 (L2) network segment without complete SEcure Neighbor
Discovery (SEND) support by all devices connected or without the availability of the infrastructure
necessary to support SEND, there is always the risk of facing operational problems due to rogue
RAs.
RA-Guard protects the system against generated maliciously or unintentionally by unauthorized or
improperly configured routers connecting to the segment.
RA-Guard applies to an environment where all messages between IPv6 end-devices traverse the
controlled Layer 2 networking devices.
Usage Guidelines Enter no ipv6 ra-guard to disable this feature.
Examples
switch(conf-if-te-12/2/1)# ipv6 ra-guard
See Also interface management