After you enable or disable NDP monitoring, you must
NDP monitoring can start or stop.
Commit your changes.
Monitor NDP and DAD packets from clients and neighbors.
For the interface where you enabled NDP monitoring,
in the Features column, hover over the NDP Monitoring
The NDP Monitoring summary for the interface displays the
list of IPv6
that this interface
will send in the Router Advertisement (RA) if RA is enabled (they
are the IPv6 prefixes of the interface itself).
also indicates whether DAD, Router Advertisement, and DNS Support
are enabled; IP addresses of any Recursive DNS Servers configured;
and any DNS suffixes configured on the DNS Search List.
Click on the NDP Monitoring icon to display detailed
Each row of the detailed
NDP Monitoring table for the interface displays the IPv6 address
of a neighbor the firewall has discovered, the corresponding MAC
address, corresponding User ID (on a best-case basis), reachability
Status of the address, and Last Reported date and time this NDP
Monitor received an RA from this IP address. A User ID will not
display for printers or other non-user-based hosts. If the status
of the IP address is Stale, the neighbor is not known to be reachable,
per RFC 4861.
At the bottom right is the count of
on the link local network.
an IPv6 address in the filter field to search for an address to
Select the check boxes to display or not display IPv6 addresses.
Click the numbers, the right or left arrow, or the vertical
scroll bar to advance through many entries.
Clear All NDP Entries
the entire table.
Monitor ND logs for reporting purposes.
In the Type column, view
and corresponding descriptions.
inconsistent router advertisement
indicates that the firewall received an
RA different from the RA that it is going to send out.