
Chapter 30
| IP Interface Commands
IPv4 Interface
– 858 –
Command Usage
◆
The ARP cache is used to map 32-bit IP addresses into 48-bit hardware (i.e.,
Media Access Control) addresses. This cache includes entries for hosts and
other routers on local network interfaces defined on this router.
◆
The maximum number of static entries allowed in the ARP cache is 32.
◆
A static entry may need to be used if there is no response to an ARP broadcast
message. For example, some applications may not respond to ARP requests or
the response arrives too late, causing network operations to time out.
◆
Static entries will not be aged out nor deleted when power is reset. A static
entry can only be removed through the configuration interface.
Example
Console(config)#arp 10.1.0.19 01-02-03-04-05-06
Console(config)#
Related Commands
clear arp-cache (860)
show arp (860)
ip proxy-arp
This command enables proxy Address Resolution Protocol (ARP). Use the
no
form
to disable proxy ARP.
Syntax
[
no
]
ip proxy-arp
Default Setting
Disabled
Command Mode
Interface Configuration (VLAN)
Command Usage
◆
Proxy ARP allows a non-routing device to determine the MAC address of a host
on another subnet or network.
◆
End stations that require Proxy ARP must view the entire network as a single
network. These nodes must therefore use a smaller subnet mask than that used
by the router or other relevant network devices.
◆
Extensive use of Proxy ARP can degrade router performance because it may
lead to increased ARP traffic and increased search time for larger ARP address
tables.
Содержание ECS4120-28F
Страница 36: ...Contents 36...
Страница 38: ...Figures 38...
Страница 46: ...Section I Getting Started 46...
Страница 70: ...Chapter 1 Initial Switch Configuration Setting the System Clock 70...
Страница 86: ...Chapter 2 Using the Command Line Interface CLI Command Groups 86...
Страница 202: ...Chapter 5 SNMP Commands Additional Trap Commands 202...
Страница 210: ...Chapter 6 Remote Monitoring Commands 210...
Страница 216: ...Chapter 7 Flow Sampling Commands 216...
Страница 278: ...Chapter 8 Authentication Commands PPPoE Intermediate Agent 278...
Страница 360: ...Chapter 9 General Security Measures Port based Traffic Segmentation 360...
Страница 384: ...Chapter 10 Access Control Lists ACL Information 384...
Страница 424: ...Chapter 11 Interface Commands Power Savings 424...
Страница 446: ...Chapter 13 Power over Ethernet Commands 446...
Страница 456: ...Chapter 14 Port Mirroring Commands RSPAN Mirroring Commands 456...
Страница 488: ...Chapter 17 UniDirectional Link Detection Commands 488...
Страница 494: ...Chapter 18 Address Table Commands 494...
Страница 554: ...Chapter 20 ERPS Commands 554...
Страница 620: ...Chapter 22 Class of Service Commands Priority Commands Layer 3 and 4 620...
Страница 638: ...Chapter 23 Quality of Service Commands 638...
Страница 772: ...Chapter 25 LLDP Commands 772...
Страница 814: ...Chapter 26 CFM Commands Delay Measure Operations 814...
Страница 826: ...Chapter 27 OAM Commands 826 1 1 00 12 CF 6A 07 F6 000084 Enabled Disabled Enabled Disabled Console...
Страница 836: ...Chapter 28 Domain Name Service Commands 836...
Страница 848: ...Chapter 29 DHCP Commands DHCP Relay Option 82 848...
Страница 902: ...Section III Appendices 902...
Страница 916: ...Glossary 916...
Страница 926: ...CLI Commands 926...
Страница 937: ......
Страница 938: ...E092017 CS R02...