arp
17-8 IP Configuration
Example
Thisexampleshowshowtousetheshowiparpcommand:
B3(su)->router#show ip arp
Protocol Address Age (min) Hardware Addr Type Interface
------------------------------------------------------------------------------
Internet 134.141.235.251 0 0003.4712.7a99 ARPA Vlan1
Internet 134.141.235.165 - 0002.1664.a5b3 ARPA Vlan1
Internet 134.141.235.167 4 00d0.cf00.4b74 ARPA Vlan2
B3(su)->router#show ip arp 134.141.235.165
Protocol Address Age (min) Hardware Addr Type Interface
------------------------------------------------------------------------------
Internet 134.141.235.165 - 0002.1664.a5b3 ARPA Vlan2
B3(su)->router#show ip arp vlan 2
Protocol Address Age (min) Hardware Addr Type Interface
------------------------------------------------------------------------------
Internet 134.141.235.251 0 0003.4712.7a99 ARPA Vlan2
Table 17‐2providesanexplanationofthecommandoutput.
arp
Usethiscommandtoaddorremovepermanent(static)ARPtableentries.Upto1,000staticARP
entriesaresupportedperSecureStackB3system.AmulticastMACaddresscanbeusedinastatic
ARPentry.ThenoformofthiscommandremovesthespecifiedpermanentARPentry:
Syntax
arp ip-address mac-address
no arp ip-address
Parameters
Table 17-2 show ip arp Output Details
Output What It Displays...
Protocol ARP entry’s type of network address.
Address Network address mapped to the entry’s MAC address.
Age (min) Interval (in minutes) since the entry was entered in the table.
Hardware Addr MAC address mapped to the entry’s network address.
Type Encapsulation type used for the entry’s network address.
Interface Interface (VLAN or loopback) through which the entry was learned.
ip‐address SpecifiestheIPaddressofadeviceonthenetwork.ValidvaluesareIP
addressesindotteddecimalnotation.
mac‐address Specifiesthe48‐bithardwareaddresscorrespondingtotheip‐address
expressedinhexadecimalnotation.
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