ZyXEL Communications ES-2108, User Manual, Page: 169 / 284

Chapter 21 IP Source Guard
ES-2108 Series User’s Guide
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21.4 ARP Inspection Status
Use this screen to look at the current list of MAC address filters that were created because the
Switch identified an unauthorized ARP packet. When the Switch identifies an unauthorized
ARP packet, it automatically creates a MAC address filter to block traffic from the source
MAC address and source VLAN ID of the unauthorized ARP packet. To open this screen,
click
Advanced Application > IP Source Guard > ARP Inspection .
Figure 93 Advanced Application > IP Source Guard > ARP Inspection: Status
The following table describes the labels in this screen.
21.4.1 ARP Inspection Log Status
Use this screen to look at log messages that were generated by ARP packets and that have not
been sent to the syslog server yet. To open this screen, click
Advanced Application > IP
Source Guard > ARP Inspection > Log Status .
Table 59 Advanced Application > IP Source Guard > ARP Inspection: Status
LABEL DESCRIPTION
Total number of filters This field displays the current number of MAC address filters that were
created because the Switch identified unauthorized ARP packets.
Index This field displays a sequential number for each MAC address filter.
MAC Address This field displays the source MAC address in the MAC address filter.
VID This field displays the source VLAN ID in the MAC address filter.
Port This field displays the source port of the discarded ARP packet.
Expiry (sec) This field displays how long (in seconds) the MAC address filter remains in
the Switch. You can also delete the record manually (
Delete ).
Reason This field displays the reason the ARP packet was discarded.
MAC+VLAN : The MAC address and VLAN ID were not in the binding
table.
IP : The MAC address and VLAN ID were in the binding table, but the IP
address was not valid.
Port : The MAC address, VLAN ID, and IP address were in the binding
table, but the port number was not valid.
Delete Select this, and click Delete to remove the specified entry.
Delete Click this to remove the selected entries.
Cancel Click this to clear the Delete check boxes above.