Security: IPv6 First Hop Security
Configuring IPv6 First Hop Security through Web GUI
473 Cisco 350, 350X and 550X Series Managed Switches, Firmware Release 2.4, ver 0.4
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• Neighbor Prefix Table—Number of entries that could not be added to this table
because the table reached its maximum size.
• TCAM—Number of entries that could not be added because of TCAM overflow.
STEP 4 Select an interface and the following fields are displayed:
• NDP (Neighbor Discovery Protocol) Messages—The number of received and
dropped messages are displayed for the following types of messages:
- RA—Router Advertisement messages
- REDIR—Redirect messages
- NS—Neighbor Solicitation messages.
- NA—Neighbor Advertisement messages.
- RS—Router Solicitation message.
• DHCPv6 Messages—The number of received and dropped messages are displayed
for the following types of DHCPv6 messages:
- ADV— Advertise messages
- REP—Reply messages
- REC—Reconfigure messages
- REL-REP—Relay reply messages
- LEAS-REP—Lease query reply messages
- RLS—Released messages
- DEC—Decline messages
The following fields are displayed in the FHS Dropped Message Table
• Feature— Type of message dropped (DHCPv6 Guard, RA Guard and so on).
• Count—Number of messages dropped.
• Reason—Reason that the messages dropped.
STEP 5 Click Clear Global Counters to clear the global overflow counters.