Administrator Guide

Contents 39
Configuring Routing Interfaces (CLI) . . . . . . . . . 1211
Configuring VLAN Routing Interfaces (IPv4)
. . . 1211
Configuring Loopback Interfaces
. . . . . . . . . 1213
Configuring Tunnels
. . . . . . . . . . . . . . . 1214
34 Layer-2 and Layer-3 Relay
Features
. . . . . . . . . . . . . . . . . . . . . . . . 1215
L2 and L3 Relay Overview . . . . . . . . . . . . . . . 1215
What Is L2 DHCP Relay?
. . . . . . . . . . . . . 1215
What Is L3 DHCP Relay?
. . . . . . . . . . . . . 1219
What Is the IP Helper Feature?
. . . . . . . . . . 1220
Default L2/L3 Relay Values
. . . . . . . . . . . . . . 1224
Configuring L2 and L3 Relay Features (Web)
. . . . . 1225
L2 DHCP Relay Global Configuration
. . . . . . . 1225
L2 DHCP Relay Interface Configuration
. . . . . 1226
L2 DHCP Relay Interface Statistics
. . . . . . . . 1228
L2 DHCP Relay VLAN Configuration
. . . . . . . 1229
DHCP Relay Agent Configuration
. . . . . . . . . 1229
IP Helper (L3 DHCP Relay) Global
Configuration . . . . . . . . . . . . . . . . . . . 1231
IP Helper (L3 DHCP Relay) Interface
Configuration
. . . . . . . . . . . . . . . . . . . 1233
IP Helper Statistics
. . . . . . . . . . . . . . . . 1235
Configuring L2 and L3 Relay Features (CLI)
. . . . . . 1236
Configuring L2 DHCP Relay
. . . . . . . . . . . . 1236
Configuring L3 Relay (IP Helper) Settings
. . . . 1238
Relay Agent Configuration Example
. . . . . . . . . . 1240