Notice on Network Management: DHCP Client configuration of Huawei 3COM Router

Based on the previous two sections, we have mastered the DHCP Server configuration of the Huawei 3COM router and the DHCP Relay configuration of the Huawei 3COM router. Here we will talk about the last part: the configuration steps and content of the DHCP Client on the Huawei 3COM router are as follows:

DHCP Client configuration for Huawei 3COM vrodhcp 1. Requirement

The vrodhcp acts as the DHCP Client to obtain the dynamic IP address of the interface.

It is mainly used to connect a vro's Ethernet interface to a public network through a LAN.

DHCP Client configuration for Huawei 3COM vrodhcp 2. Networking Diagram

DHCP Client configuration for Huawei 3COM vrodhcp 3. Configuration script

 
 

  
  
Routeconfig script
  
  
#
  
  
Sysname roupid
  
  
#
  
  
Radius scheme system
  
  
#
  
  
Domain system
  
  
#
  
  
Interface Ethernet1/0/0
  
  
Ip address dhcp-alloc/configure DHCP to obtain the address/
  
  
#
  
  
Interface Ethernet1/0/1
  
  
Ip address 192.168.0.1 255.255.255.0
  
  
#
  
  
Interface NULL0
  
  
#
  
  
Ip route-static 0.0.0.0 0.0.0.0 202.101.68.1 preference 60
  
  
/Specify the default egress route/
  
  
#
  
  
User-interface con 0
  
  
User-interface vty 0 4
  
  
#
  
  
Return
 
 

DHCP Client configuration of Huawei 3COM router 4. Verify

You can use disp int to view the IP addresses obtained by the interface.

 
 

  
  
[Quidway]disp int e 1/0/0  
  
  
Ethernet1/0/0 current state :UP  
  
  
Line protocol current state :UP  
  
  
Description :   Ethernet1/0/0 Interface  
  
  
The Maximum Transmit Unit is 1500, Hold timer is 10(sec)  
  
  
Internet Address is 202.101.xx.4/24, acquired via DHCP  
  
  
IP Sending Frames' Format is PKTFMT_ETHNT_2, Hardware address is 00e0-fc45-2ca7  
  
  
Media type is twisted pair, loopback not set, promiscuous mode not set  
  
  
100Mb/s, Full-duplex, link type is autonegotiation  
  
  
Output flow-control is disabled, input flow-control is disabled  
  
  
Output queue : (Urgent queue : Size/Length/Discards)   0/50/0  
  
  
Output queue : (Protocol queue : Size/Length/Discards) 0/500/0  
  
  
Output queue : (FIFO queuing : Size/Length/Discards)   0/75/0  
  
  
Last 300 seconds input rate 0.00 bytes/sec, 0.00 packets/sec  
  
  
Last 300 seconds output rate 0.00 bytes/sec, 0.00 packets/sec  
  
  
Input: 406 packets, 57174 bytes, 406 buffers  
  
  
218 broadcasts, 0 multicasts, 0 pauses  
  
  
0 errors, 0 runts, 0 giants  
  
  
0 crc, 0 align errors, 0 overruns  
  
  
0 dribbles, 0 drops, 0 no buffers  
  
  
Output:268 packets, 37113 bytes, 269 buffers  
  
  
86 broadcasts, 19 multicasts, 0 pauses  
  
  
0 errors, 0 underruns, 0 collisions  
  
  
0 deferred, 0 lost carriers 
 
 

DHCP Client configuration of Huawei 3COM router 5. Prompt

1. The default router must be specified to implement the Internet access function. The gateway address can be obtained through debugDHCPclient packet. Point the default route of the device to the gateway. The default gateway is usually fixed and will not change with the address acquisition and release.

2. This configuration often needs to be combined with the NAT configuration to enable Intranet users to access the Internet.