3Com 3C13636 Configuration Manual page 500

3Com Router 3000 Ethernet Family
Configuration Guide
II. Network diagram
DHCP client
Figure 9-13 Network diagram for the DHCP support on the serial interface using PPP
III. Configuration procedure
1) Configure the DHCP server
<3Com> system-view
[3Com] dhcp enable
[3Com] dhcp select global interface serial 2/0/0
[3Com] dhcp server ip-pool 1
[3Com-dhcp-pool-1] network 20.20.0.0 mask 255.255.255.0
[3Com-dhcp-pool-1] gateway-list 20.20.0.1
[3Com-dhcp-pool-1] domain-name huawei.com
[3Com-dhcp-pool-1] quit
[3Com] interface serial 2/0/0
[3Com-serial2/0/0] link-protocol ppp
[3Com-serial2/0/0] ip address 10.0.0.1 255.255.255.0
[3Com-serial2/0/0] quit
[3Com] ip route 0.0.0.0 0.0.0.0 10.0.0.2
2) Configure the DHCP relay
<3Com> system-view
[3Com] dhcp enable
[3Com] interface seral 2/0/0
[3Com-serial2/0/0] link-protocol ppp
[3Com-serial2/0/0] ip address 10.0.0.2 255.255.255.0
[3Com-serial2/0/0] quit
[3Com] interface serial 2/0/1
[3Com-serial2/0/1] link-protocol ppp
[3Com-serial2/0/1] ip address 20.20.0.1 255.255.255.0
[3Com-serial2/0/1] ip relay address 10.10.0.1
[3Com-serial2/0/1] dhcp select relay
[3Com-serial2/0/1] quit
3) Configure the DHCP client
<3Com> system-view
Serial2/0/1:
Serial2/0/0
20. 20.0.1/24
3Com Corporation
DHCP relay
Serial2/0/0:
10.0.0.2/24
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Chapter 9 DHCP Configuration
DHCP server
Serial2/0/0:
10.0.0.1/24