User Guide

OmniAccess SafeGuard OS Administration Guide
186
Chapter 5: Setting Up SafeGuard Switches
The following example creates an entry with an IP address of 10.12.14.1 and a MAC
address of 34:78:A8:23:56:9B:
(SafeGuardOS) #configure terminal
Enter configuration commands, one per line. End with CNTL/Z
(SafeGuardOS) (config) #arp 10.12.14.1 34:78:a8:23:56:9b
(SafeGuardOS) (config) #exit
(SafeGuardOS) #
Setting the ARP Cache Size
The arp cachesize command configures the ARP cache size. The default cache size is
3968, the maximum cache size.
This Global Configuration command has the following syntax:
arp cachesize size
The following example sets the size of the cache to 500 entries:
(SafeGuardOS) #configure terminal
Enter configuration commands, one per line. End with CNTL/Z
(SafeGuardOS) (config) #arp cachesize 500
(SafeGuardOS) (config) #exit
(SafeGuardOS) #
Enabling or Disabling Proxy ARP
Proxy ARP is enabled by default on a router interface. To disable Proxy ARP use the no
version of the ip proxy-arp command. Without proxy ARP, a device only responds to an
ARP request if the target IP address is an address configured on the interface where the
ARP request arrived.
With proxy ARP, the device may also respond if the target IP address is reachable. The
device only responds if all next hops in its route to the destination are through interfaces
other than the interface that received the ARP request. The syntax of the Interface
Configuration mode commands are:
macaddr Specifies a unicast MAC address for that
device. MAC addresses may be specified in
any of the following formats:
■ aa:bb:cc:dd:ee:ff
■ aabb:ccdd:eeff
■ aa-bb-cc-dd-ee-ff
■ aabb.ccdd.eeff
■ aabbccddeeff
Syntax Description size Specifies the ARP cache size number of
entries. Valid entries are 384 to 3968.