Specifications

Reviewing and Configuring the ARP Table ip gratuitous-arp
16-14 IP Configuration
Parameters
Defaults
None.
Mode
Routercommand,Globalconfiguration:Matrix>Router(config)#
Usage
Upto1,000staticARPentriesaresupportedperEnterasysMatrixSeriesroutingmoduleor
standalonedevice.AmulticastMACaddresscanbeusedinastaticARPentry.
The“no”formofthiscommandremovesthespecifiedpermanentARPentry.
Example
ThisexampleshowshowtoaddapermanentARPentryfortheIPaddress130.2.3.1andMAC
address0003.4712.7a99:
Matrix>Router(config)#arp 130.2.3.1 0003.4712.7a99 arpa
ip gratuitous-arp
UsethiscommandtooverridethenormalARPupdatingprocess,thatoccursbydefault.
Syntax
ip gratuitous-arp {ignore | reply | request}
no ip gratuitous-arp
Parameters
Defaults
None.
Mode
Routercommand,Interfaceconfiguration:Matrix>Router(config‐if(Vlan1))#
ip‐address SpecifiestheIPaddressofadeviceonthenetwork.ValidvaluesareIP
addressesindotteddecimalnotation.
mac‐address Specifiesthe48‐bithardwareaddresscorrespondingtotheip‐address
expressedinhexadecimalnotation.
arpa SpecifiesARPAasthetypeofARPmapping.
ignore IgnoreallgratuitousARPframes,noupdateswilloccur.Thisoption
willalsopreventanynewlearningfromgratuitousarps,ifthe
commandipgratuitous‐arp‐learningwasused.(“ipgratuitous‐arp‐
learning”onpage 16‐15).
reply Updatefromgratuitousarpreplyonly.
request Updatefromgratuitousarprequestonly.