3Com Switch 7750 Configuration Guide Guide

Super VLAN Configuration Example 119

[SW7750-vlan10] quit

[SW7750] interface Vlan-interface 10

[SW7750-Vlan-interface10] ip address 10.110.1.1 255.255.255.0

By default, the ARP proxy function is enabled on the VLAN interface of the super

VLAN, and cannot be disabled.

Super VLAN Supporting

DHCP Relay Example

Network requirements

■ Create VLAN 6 as a super VLAN, and create VLAN 2 and VLAN 3 as the sub

VLANs which map VLAN 6.

■ Configure the IP address of the VLAN 6 as 10.1.1.1, and the sub network mask

as 255.255.255.0.

■ Enable the DHCP relay function on the VLAN interface of VLAN 6, and establish

the mapping between VLAN 6 and the remote DHCP server group 2 to make

the hosts in VLAN 2 and VLAN 3 being able to dynamically obtain IP addresses

from the DHCP server group 2.

Configuration Procedure

# Create VLAN 6, and configure it as a super VLAN.

<SW7750> system-view

[SW7750] vlan 6

[SW7750-vlan6] supervlan

# Create VLAN 2 and VLAN 3 and establish the mapping between them and VLAN

[SW7750-vlan6] quit

[SW7750] vlan 2

[SW7750-vlan2] quit

[SW7750] vlan 3

[SW7750-vlan3] quit

[SW7750] vlan 6

[SW7750-vlan6] subvlan 2 3

# Create the VLAN interface of VLAN 6, and configure an IP address for it.

[SW7750-vlan6] quit

[SW7750] interface Vlan-interface 6

[SW7750-Vlan-interface6] ip address 10.1.1.1 255.255.255.0

# Enable the DHCP relay function on the VLAN 6 interface, that is, establish the

mapping between the interface and the DHCP server group 2.

[SW7750-Vlan-interface6] dhcp-server 2