3Com 5500G, 4210, 4200G manual Dhcp Server Global Address Pool Configuration Guide

DHCP Server Global Address Pool Configuration Guide 197

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%Apr 10 21:34:55:782 2000 3Com DHCPS/4/DHCPS_LOCAL_SERVER:- 1 - Local DHCP server information(detect by server):SERVER IP = 10.1.1.

5; Sourceclient information: interface = Vlan-interface2, type = DHC P_REQUEST, CHardAddr= 00e0-fc55-0011

Complete Configuration #

dhcp server ip-pool 0

network 10.1.1.0 mask 255.255.255.0 dns-list 10.1.1.2

domain-name aabbcc.com

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dhcp server ip-pool 1

network 10.1.1.0 mask 255.255.255.128 gateway-list 10.1.1.126

expired day 10 hour 12

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dhcp server ip-pool 2

network 10.1.1.128 mask 255.255.255.128 gateway-list 10.1.1.254

nbns-list 10.1.1.4 expired day 5

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dhcp server forbidden-ip 10.1.1.2 dhcp server forbidden-ip 10.1.1.4 dhcp server forbidden-ip 10.1.1.126 dhcp server forbidden-ip 10.1.1.254 dhcp server detect

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Precautions If you use the inheritance relation between the parent and child address pools in this configuration, make sure that the number of IP addresses to be assigned from a child address pool does not exceed the number of its total available addresses; otherwise, extra IP addresses will be obtained from the parent address pool, and the attributes (for example, gateway) of the parent address pool are also obtained by the clients.

In this example, the number of clients requesting IP addresses from VLAN-interface 1 is recommended to be less than or equal to 122 and the number of clients requesting IP addresses from VLAN-interface 2 is recommended to be less than or equal to 124.