The checkzero command checks the Must-Be-Zero
(MBZ) fields in RIPng packets.
The undo checkzero command disables the MBZ field check.
By default, the MBZ
field check is performed on RIPng packets.
Format
checkzero
undo checkzero
Parameters
None
Views
RIPng view
Default Level
2: Configuration level
Usage Guidelines
After being enabled with the MBZ field check, a FW does not process
the RIPng packets whose MBZ fields are not zero. If all the packets
are trustable, the MBZ field check is not required. CPU time is therefore
saved.