User manual

Chapter 26 IP Source Guard
GS2210 Series User’s Guide
240
26.10 ARP Inspection Configure
Use this screen to enable ARP inspection on the Switch. You can also configure the length of time the
Switch stores records of discarded ARP packets and global settings for the ARP inspection log. To open
this screen, click Advanced Application > IP Source Guard > IPv4 Source Guard Setup > ARP Inspection >
Configure.
Figure 174 Advanced Application > IP Source Guard > IPv4 Source Guard Setup > ARP Inspection >
Configure
The following table describes the labels in this screen.
Table 107 Advanced Application > IP Source Guard > IPv4 Source Guard Setup > ARP Inspection >
Configure
LABEL DESCRIPTION
Active Select this to enable ARP inspection on the Switch. You still have to enable ARP inspection
on specific VLAN and specify trusted ports.
Filter Aging Time
Filter aging time This setting has no effect on existing MAC address filters.
Enter how long (1~2147483647 seconds) the MAC address filter remains in the Switch after
the Switch identifies an unauthorized ARP packet. The Switch automatically deletes the
MAC address filter afterwards. Enter 0 if you want the MAC address filter to be permanent.
Log Profile
Log buffer size Enter the maximum number (1~1024) of log messages that were generated by ARP
packets and have not been sent to the syslog server yet. Make sure this number is
appropriate for the specified Syslog rate and Log interval.
If the number of log messages in the Switch exceeds this number, the Switch stops
recording log messages and simply starts counting the number of entries that were
dropped due to unavailable buffer. Click Clearing log status table in the ARP Inspection
Log Status screen to clear the log and reset this counter. See Section 26.9 on page 238.