1 arp inspection port configure – ZyXEL Communications GS-2750 User Manual
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Chapter 24 IP Source Guard
GS-2750 User’s Guide
212
24.7.1 ARP Inspection Port Configure
Use this screen to specify whether ports are trusted or untrusted ports for ARP inspection. You
can also specify the maximum rate at which the Switch receives ARP packets on each
untrusted port. To open this screen, click Advanced Application > IP Source Guard > ARP
Inspection > Configure > Port.
Syslog rate
Type the maximum number of syslog messages generated by ARP
packets the Switch can send to the syslog server in one batch. This
number is expressed as a rate because the batch frequency is determined
by the Log Interval. You must configure the syslog server (
) to use this setting. Enter “0” if you do not want the Switch to
send log messages generated by ARP packets to the syslog server.
The Syslog rate and Log interval settings interact. If the Syslog rate
number X is greater than Log interval seconds Y, X divided by Y system
messages are sent every second. Otherwise, one message is sent every Y
divided by X seconds. For example:
•
If the Syslog rate is 5 and the Log interval value is 2, two messages are
sent every second.
•
If the Syslog rate is 3 and the Log interval value is 6, one message is
sent every two seconds.
Log interval
Type how often (0-86400 seconds) the Switch sends a batch of syslog
messages to the syslog server. Enter 0 if you want the Switch to send
syslog messages immediately. See Syslog rate for information on the
relationship between Syslog rate and Log interval.
Apply
Click Apply to save your changes to the Switch’s run-time memory. The
Switch loses these changes if it is turned off or loses power, so use the
Save link on the top navigation panel to save your changes to the non-
volatile memory when you are done configuring.
Cancel
Click this to reset the values in this screen to their last-saved values.
Table 78 ARP Inspection Configure (continued)
LABEL
DESCRIPTION