Dhcp Configuration Examples; Dhcp Server Configuration Example - 3Com 3C13636 Configuration Manual

3Com Router 3000 Ethernet Family
Configuration Guide
Display the DHCP relay address
of the interface
Display
associations for DHCP clients
obtaining IP addresses through
the DHCP relay
Enable
debugging
Disable
debugging
III. Displaying and debugging DHCP client
Table 9-50 Display and debug DHCP client
Display the statistics of DHCP
client
Enable
debugging
Disable
debugging

9.9 DHCP Configuration Examples

9.9.1 DHCP Server Configuration Example

There are two types of DHCP networking modes: one is that both DHCP server and
DHCP client are in the same sub-net and they exchange signals using DHCP. The
second is that DHCP server and DHCP client are in different sub-nets, which requires
DHCP relay agent to achieve IP address allocation. The configuration details are the
same in both networking modes.
I. Network requirements
DHCP server allocates dynamic IP address to DHCP client which is in the same
sub-net. The address pool segment 10.1.1.0/24 is divided into two sub-segments:
10.1.1.0/25 and 10.1.1.128/25. The two Ethernet interface of DHCP server are with the
addresses 10.1.1.1/25 and 10.1.1.129/25.
For the segment 10.1.1.0/25, the address lease limit is 10 days and 12 hours; the
domain name is huawei.com; the DNS address is 10.1.1.2; no NetBIOS is configured;
the egress router address is 10.1.1.126. For the segment 10.1.1.128/25, the address
Operation
IP-to-MAC address
the DHCP relay
the DHCP relay
Operation
the DHCP client
the DHCP client
3Com Corporation
Command
display dhcp relay address [ interface
interface-type interface-num | all ]
display dhcprelay-security
debugging dhcp relay { all | error | event |
packet [ client mac mac-address ] }
undo debugging dhcp relay { all | error | event
| packet [ client mac mac-address ] }
Command
display dhcp client [ verbose ]
debugging dhcp client { error | event | packet |
all }
undo debugging dhcp client { error | event |
packet | all }
9-44
Chapter 9 DHCP Configuration