dhcp server excluded-ip-address
时间: 2023-10-08 08:14:02 浏览: 48
DHCP server excluded IP addresses are the IP addresses that the DHCP server will not assign to any client devices. These addresses are typically reserved for network infrastructure devices, such as routers, switches, and servers. To exclude an IP address from being assigned by the DHCP server, you can add it to a list of excluded addresses in the DHCP server configuration. This ensures that the IP address is not assigned to any client devices and remains available for use by the network infrastructure.
相关问题
华三交换机如何开启dhcp,命令是什么
华三交换机开启 DHCP 服务的命令如下:
1. 进入全局配置模式:
```
system-view
```
2. 配置 DHCP 服务,并设置 IP 地址池:
```
dhcp enable
interface vlanif 1
ip address 192.168.1.1 255.255.255.0
dhcp select global
dhcp server excluded-ip-address 192.168.1.1
dhcp server lease day 7
dhcp server dns-list 114.114.114.114
dhcp server gateway-list 192.168.1.1
dhcp server ip-range 192.168.1.2 192.168.1.254 mask 255.255.255.0
```
其中,dhcp select global 表示使用全局 DHCP 配置;dhcp server excluded-ip-address 表示不分配给客户端的 IP 地址;dhcp server lease day 7 表示租约时间为 7 天;dhcp server dns-list 和 dhcp server gateway-list 分别表示 DNS 和网关地址;dhcp server ip-range 表示 IP 地址池的范围。
3. 保存配置:
```
save
```
华为三层交换机配置DHCP
在华为三层交换机上配置DHCP服务,可以为连接到交换机的设备自动分配IP地址。以下是一个示例:
1. 创建DHCP池
```
<Switch> system-view
[Switch] dhcp enable
[Switch] interface vlanif 100
[Switch-Vlanif100] dhcp select relay
[Switch-Vlanif100] dhcp relay server select 192.168.1.1
[Switch-Vlanif100] quit
[Switch] dhcp server excluded-ip-address 192.168.100.1
[Switch] dhcp server excluded-ip-address 192.168.100.254
[Switch] dhcp server lease day 7
[Switch] dhcp server dns-list 192.168.1.1
[Switch] dhcp server option 43 hex 0104c0a80101
[Switch] dhcp server option 60 ascii "Huawei AP"
[Switch] dhcp server pool 1
[Switch-dhcp-server-pool-1] network 192.168.100.0 mask 255.255.255.0
[Switch-dhcp-server-pool-1] gateway-list 192.168.100.1
[Switch-dhcp-server-pool-1] dns-list 192.168.1.1
[Switch-dhcp-server-pool-1] domain-name example.com
[Switch-dhcp-server-pool-1] quit
[Switch] quit
```
以上命令的含义是:
- `dhcp enable`:启用DHCP服务。
- `dhcp select relay`:在VLAN接口上启用DHCP Relay功能。
- `dhcp relay server select`:设置DHCP Relay转发到的DHCP服务器的IP地址。
- `dhcp server excluded-ip-address`:排除不希望分配的IP地址。
- `dhcp server lease day`:设置IP地址租赁时间为7天。
- `dhcp server dns-list`:配置DNS服务器的IP地址。
- `dhcp server option`:配置DHCP选项。
- `dhcp server pool`:创建DHCP池。
- `network`:设置DHCP池使用的IP地址段和子网掩码。
- `gateway-list`:设置DHCP客户端的默认网关。
- `dns-list`:设置DHCP客户端的DNS服务器地址。
- `domain-name`:设置DHCP客户端的域名。
2. 配置接口
```
[Switch] interface gigabitethernet 0/0/1
[Switch-GigabitEthernet0/0/1] port link-type trunk
[Switch-GigabitEthernet0/0/1] port trunk allow-pass vlan 100
[Switch-GigabitEthernet0/0/1] quit
[Switch] interface vlanif 100
[Switch-Vlanif100] ip address 192.168.100.1 24
[Switch-Vlanif100] quit
[Switch] quit
```
以上命令的含义是:
- `port link-type trunk`:将端口的链路类型设置为Trunk模式。
- `port trunk allow-pass vlan`:设置允许通过的VLAN。
- `interface vlanif`:进入VLAN接口的视图。
- `ip address`:为该接口分配一个IP地址。
通过以上配置,您应该可以成功在华为三层交换机上配置DHCP服务了。