ipv6 nd mac-check enable
Syntax
ipv6 nd mac-check enable
undo ipv6 nd mac-check enable
View
System view
Default level
2: System level
Parameters
None
Description
Use ipv6 nd mac-check enable to enable source MAC consistency check for ND packets.
Use undo ipv6 nd mac-check enable to disable source MAC consistency check for ND packets.
By default, source MAC consistency check is disabled for ND packets.
In a typical forged ND packet, the Ethernet frame header conveys a source MAC address different than the source link layer address option. To filter out these invalid ND packets, use the source MAC consistency check function to check ND packets for MAC address inconsistency.
Examples
# Enable source MAC consistency check for ND packets.
<Sysname> system-view [Sysname] ipv6 nd mac-check enable