4000 Router Series Layer 3 - IP Services Command Reference

Only one IP address range can be specified by using the ip-range keyword on an interface.

Examples

# Enable local proxy ARP on Ethernet 1/1.

<Sysname> system-view

[Sysname] interface ethernet 1/1

[Sysname-Ethernet1/1] local-proxy-arp enable

# Enable local proxy ARP on Ethernet 1/1 for a specific IP address range.

<Sysname> system-view

[Sysname] interface ethernet 1/1

[Sysname-Ethernet1/1] local-proxy-arp enable ip-range 1.1.1.1 to 1.1.1.20

Related commands

display local-proxy-arp

proxy-arp enable

Use proxy-arp enable to enable proxy ARP.

Use undo proxy-arp enable to disable proxy ARP.

Syntax

proxy-arp enable

undo proxy-arp enable

Default

Proxy ARP is disabled.

Views

VLAN interface view, Layer 3 Ethernet interface view, Layer 3 Ethernet subinterface view

Predefined user roles

network-admin

Usage guidelines

Proxy ARP enables a device on a network to answer ARP requests for an IP address not on that network.

With proxy ARP, hosts on different broadcast domains can communicate with each other as they do on

the same network.

Proxy ARP includes common proxy ARP and local proxy ARP.

Common proxy ARP allows communication between hosts that connect to different Layer-3 interfaces and

reside in different broadcast domains.

Local proxy ARP allows communication between hosts that connect to the same Layer-3 interface and

reside in different broadcast domains.

Examples

# Enable proxy ARP on Ethernet 1/1.

<Sysname> system-view

[Sysname] interface ethernet 1/1

[Sysname-Ethernet1/1] proxy-arp enable