ZyXEL Communications GS1920-48HPv2, Руководство пользователя

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Chapter 26 IP Source Guard
GS1920v2 Series User’s Guide
248
26.7 ARP Inspe c tio n Sta tus
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
Adva nc e d Applic a tio n > IP So urc e
G ua rd > IPv4 So urc e G ua rd Se tup > ARP Inspe c tio n
.
Fig ure 176
Advanced Application > IP Source Guard > IPv4 Source Guard Setup > ARP Inspection
The following table describes the labels in this screen.
Table 107 Advanced Application > IP Source Guard > IPv4 Source Guard Setup > ARP Inspection
LABEL DESC RIPTIO N
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 (
De le te
).
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.
Po rt
: The MAC address, VLAN ID, and IP address were in the binding table, but the port
number was not valid.
Select an entry’s check box to select a specific entry. Otherwise, select the check box in
the table heading row to select all entries.
Delete Check the entry(ies) that you want to remove and then click
De le te
to remove the selected
entry(ies) from the summary table.
Cancel Click
C a nc e l
to clear the check boxes.
Change Pages Click
Pre vio us Pa g e
or
Ne xt Pa g e
to show the previous/next screen if all status information
cannot be seen in one screen.