ProCurve 2610-PWR Technical Information download pdf (Page 271)

IP Routing Features

Configuring IP Parameters for Routing Switches

An ARP request from one subnet can reach another subnet when both subnets

are on the same physical segment (Ethernet cable), since MAC-layer broad-

casts reach all the devices on the segment.

Proxy ARP is disabled by default on ProCurve routing switches. To enable

Proxy ARP, enter the following commands from the VLAN context level in the

CLI:

ProCurve(config)# vlan 1

ProCurve(vlan-1)# ip proxy-arp

To again disable IP proxy ARP, enter the following command:

ProCurve(vlan-1)# no ip proxy-arp

Syntax: [no] ip proxy-arp

Configuring Forwarding Parameters

The following configurable parameters control the forwarding behavior of

your routing switch:

■ Time-To-Live (TTL) threshold — configuring this parameter is covered in

the chapter on IP addressing in the Management and Configuration

Guide.

■ Forwarding of directed broadcasts — see below.

Note These parameters are global and thus affect all IP interfaces configured on the

routing switch.

Enabling Forwarding of Directed Broadcasts

A directed broadcast is an IP broadcast to all devices within a single directly-

attached network or sub-net. A net-directed broadcast goes to all devices on

a given network. A sub-net-directed broadcast goes to all devices within a

given sub-net.

Note A less common type, the all-sub-nets broadcast, goes to all directly-attached

sub-nets. Forwarding for this broadcast type also is supported, but most

networks use IP multicasting instead of all-sub-net broadcasting.

Forwarding for all types of IP directed broadcasts is disabled by default. You

can enable forwarding for all types if needed. You cannot enable forwarding

for specific broadcast types.

7-13

1 2 ... 266 267 268 269 270 271 272 273 274 275 276 ... 363 364

No comments

ProCurve 2610-PWR Technical Information Page 271