dhcp relay server-ip

DHCP relay is used to forward DHCP requests from one subnet to another subnet where a DHCP server is located. The relay agent (often a router) receives the DHCP request broadcast from a client and then forwards it to the DHCP server using unicast.

The "server-ip" parameter in the DHCP relay configuration refers to the IP address of the DHCP server that the relay agent should forward the DHCP requests to. This parameter is necessary because the relay agent needs to know where to send the requests so that they can be properly serviced by the DHCP server.

相关问题

R2------------------------- sy sys R2 un in en int g0/0/0 ip add 10.0.0.2 30 int g0/0/1 ip add 192.168.200.2 30 q dhcp en ip pool dhcppool net 192.168.0.0 mask 26 g 192.168.0.62 lease day 1 dns 1.1.1.1 q int g0/0/1 dhcp select global q ip route-static 192.168.0.0 26 192.168.200.1 ip route-static 192.168.0.64 26 10.0.0.1 q SW2------------------- sy sys SW2 un in en v b 30 40 int e0/0/1 p l a p d v 30 int g0/0/1 p l a p d v 40 int v 30 ip add 192.168.0.62 26 int v 40 ip add 192.168.200.1 30 q dhcp en int v 30 dhcp select re dhcp relay server-ip 192.168.200.2 q ip route-static 0.0.0.0 0 192.168.200.2 q 把ip地址改为192.168.44.61

R2-------------------------
sy
sys
R2
un
in
en
int g0/0/0
ip add 192.168.44.61 30
int g0/0/1
ip add 192.168.200.2 30
q
dhcp
en
ip pool dhcppool
net 192.168.0.0 mask 26
g 192.168.0.62
lease day 1
dns 1.1.1.1
q
int g0/0/1
dhcp select global
q
ip route-static 192.168.0.0 26 192.168.200.1
ip route-static 192.168.0.64 26 192.168.44.62
q

SW2-------------------
sy
sys
SW2
un
in
en
v b 30 40
int e0/0/1
p l a p d
v 30
int g0/0/1
p l a p d
v 40
int v 30
ip add 192.168.0.62 26
int v 40
ip add 192.168.200.1 30
q
dhcp
en
int v 30
dhcp select re
dhcp relay server-ip 192.168.200.2
q
ip route-static 0.0.0.0 0 192.168.200.2
q

华为交换机DHCP的命令display dhcp relay all

display dhcp relay all 是用于在华为交换机上查看 DHCP Relay（DHCP 中继）的配置和状态的命令。它可以显示交换机上所有接口的 DHCP 中继信息，包括 DHCP 中继启用状态、中继到的 DHCP 服务器地址、中继的 VLAN 号等。

下面是一个示例输出：

<Switch> display dhcp relay all
  DHCP Relay is enabled globally
  DHCP Relay Agent Information
  -----------------------------------------------
  Interface              IP address             Type
  GE0/0/1                10.1.1.1               relay
  GE0/0/2                10.1.2.1               relay
  -----------------------------------------------
  DHCP Server Information
  -----------------------------------------------
  DHCP Server IP Address       Relay Type   Interface
  10.2.1.1                      unicast      GE0/0/1
  10.2.2.1                      unicast      GE0/0/2
  -----------------------------------------------