Network ProtocolFor related commands, see reset arp-cache, display arp.Example# Set the Ethernet MAC address 00-e0-fc-01-00-00 corresponding to the IP address129.102.0.1 in the LAN, and this cache is temporarily valid.[3Com] arp dynamic 129.102.0.1 00-eo-fc-01-00-002.1.2 arp staticSyntaxarp static ip-address mac-addressundo arp static ip-addressViewSystem viewParameterip-address: The IP address of a static ARP mapping entry, in dotted decimal format.mac-address: The MAC address of an Ethernet. Its format is XX-XX-XX-XX-XX-XX,where XX is in hex.DescriptionUsing the arp static command, you can manually configure a static ARP mappingentry. Using the undo arp static command, you can cancel a static ARP mappingentry of a specified address.By default, the dynamic ARP mapping is adopted.If you want to bind a packet whose destination address is not in this segment of aspecified Ethernet interface so that the packet with this IP address can be forwardedthrough this gateway, or if you want to filter some invalid IP addresses, you need tomanually configure the static ARP mapping entries.The static ARP map item is always valid when the router works normally, and thevalid interval for the ARP map item is 20 minutes.When the IP address of the interface changes, you need to reconfigure the ARPmapping entries manually.For related commands, see reset arp-cache, display arp.11
