Specifications

Reviewing and Configuring the ARP Table ip proxy-arp
16-16 IP Configuration
ip proxy-arp
UsethiscommandtoenableproxyARPonaninterface.ThisvariationoftheARPprotocolallows
theroutingmoduletosendanARPresponseonbehalfofanendnodetotherequestinghost.
Syntax
ip proxy-arp [default-route] [local]
no ip proxy-arp
Parameters
Defaults
None.
Mode
Routercommand,Interfaceconfiguration:Matrix>Router(config‐if(Vlan1))#
Usage
ProxyARPcanlessenbandwidthuseonslow‐speedWANlinks.Itisenabledbydefault.
The“no”formofthiscommanddisablesproxyARP
Example
ThisexampleshowshowtoenableproxyARPMatrix>Router(config)#interfacevlan1onVLAN1:
Matrix>Router(config-if(Vlan 1))#ip proxy-arp
ip mac-address
UsethiscommandtosetaMACaddressonaninterface.
Syntax
ip mac-address address
no ip mac-address
Parameters
Defaults
None.
default‐route (Optional)SetstheroutertorespondtoARPrequestsforhoststhatare
onlyreachableviathedefaultroute.Typically,proxyarpisonlyusedto
replytorequestsforhostthatarereachableviaanon‐defaultroute.
local (Optional)AllowstheroutertorespondtoARPrequeststhat
are
receivedontheinterfacetowhichthiscommandisappliedifthesource
IPaddressoftherequestisreachableonthisinterface.
address Specifiesa48‐bitMACaddressinhexadecimalformat.