HP 7000 dl Router Series Uživatelská příručka stáhnout pdf (Strana 685)

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SROS Command Line Interface Reference Guide ATM Sub-Interface Config Command Set

ip proxy-arp

Use the ip proxy-arp to enable proxy Address Resolution Protocol (ARP) on the interface. Use the no

form of this command to disable this feature.

Syntax Description

<address> Defines the IP address for the interface in dotted decimal notation (for example:

192.22.73.101)

<subnet mask> Specifies the subnet mask that corresponds to the listed IP address

Default Values

By default, proxy arp is enabled.

Command Modes

(config-interface)# Interface Configuration Mode required

Functional Notes

In general, the principle of proxy-arp allows a router to insert its IP address in the source IP address field of

a packet (if the packet is from a host on one of its subnetworks). This allows hosts to reach devices on

other subnetworks without implementing routing or specifying a default gateway.

If proxy-arp is enabled, the Secure Router OS will respond to all proxy-arp requests with its specified MAC

address and forward packets accordingly.

Enabling proxy-arp on an interface may introduce unnecessary ARP traffic on the network.

Usage Examples

The following enables proxy-arp on the ATM sub-interface 1.1:

(config)#interface atm 1.1

(config-atm 1.1)#ip proxy-arp

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