华为设备DHCP snooping配置命令

[Huawei]dhcp snooping enable //全局使能DHCP Snooping功能

[Huawei]dhcp snooping enable vlan 10 //使能DHCP Snooping功能

[Huawei-vlan10]dhcp snooping enable

[Huawei-GigabitEthernet0/0/1]dhcp snooping enable

[Huawei-GigabitEthernet0/0/1]dhcp snooping trusted //配置接口为“信任”接口

[Huawei-vlan10]dhcp snooping trusted interface g0/0/1

[Huawei]undo dhcp snooping user-transfer enable //去使能DHCP Snooping用户位置迁移功能

[Huawei]arp dhcp-snooping-detect enable //使能ARP与DHCP Snooping的联动功能

[Huawei]dhcp snooping user-offline remove mac-address //使能当DHCP Snooping动态表项清除时移除对应用户的MAC表项功能

[Huawei]dhcp snooping check dhcp-giaddr enable vlan 10 //使能检测DHCP Request报文中GIADDR字段是否非零的功能

[Huawei-vlan10]dhcp snooping check dhcp-giaddr enable

[Huawei]display dhcp snooping configuration //查看DHCP Snooping的配置信息

[Huawei]display dhcp snooping //查看DHCP Snooping的运行信息

[Huawei]display dhcp snooping user-bind all //查看DHCP Snooping绑定表信息

[Huawei]dhcp server detect //使能DHCP Server探测功能

[Huawei]dhcp snooping check dhcp-rate enable //使能对DHCP报文上送DHCP报文处理单元的速率进行检测功能

[Huawei]dhcp snooping check dhcp-rate 100 //配置DHCP报文上送DHCP报文处理单元的最大允许速率,缺省为100pps

[Huawei-vlan10]dhcp snooping check dhcp-rate enable

[Huawei-vlan10]dhcp snooping check dhcp-rate 100

[Huawei-GigabitEthernet0/0/1]dhcp snooping check dhcp-rate enable

[Huawei-GigabitEthernet0/0/1]dhcp snooping check dhcp-rate 100

[Huawei]dhcp snooping alarm dhcp-rate enable //使能当丢弃的DHCP报文数达到告警阈值时的告警功能

[Huawei]dhcp snooping alarm dhcp-rate threshold 100 //配置接口下被丢弃的DHCP报文的告警阈值,缺省为100packets

[Huawei-GigabitEthernet0/0/1]dhcp snooping alarm dhcp-rate enable

[Huawei-GigabitEthernet0/0/1]dhcp snooping alarm dhcp-rate threshold 100

[Huawei]dhcp snooping check dhcp-request enable vlan 10 //开启对从指定VLAN内上送的DHCP报文进行绑定表匹配检查的功能

[Huawei]dhcp snooping check dhcp-chaddr enable vlan 10 //开启检测DHCP Request报文帧头源MAC地址与CHADDR字段是否相同的功能

[Huawei-vlan10]dhcp snooping check dhcp-request enable

[Huawei-vlan10]dhcp snooping check dhcp-chaddr enable

[Huawei]dhcp snooping max-user-number 1024 vlan 10 //配置设备允许学习的DHCP Snooping绑定表项的最大个数

[Huawei-vlan10]dhcp snooping max-user-number 1024 //配置接口允许学习的DHCP Snooping绑定表项的最大个数

[Huawei]dhcp snooping check dhcp-chaddr enable vlan 10 //使能检测DHCP Request报文帧头MAC与DHCP数据区中CHADDR字段是否一致功能

[Huawei-vlan10]dhcp snooping check dhcp-chaddr enable

[Huawei-vlan10]dhcp option82 insert enable interface g0/0/1 //使能在DHCP报文中添加Option82选项功能

[Huawei-vlan10]dhcp option82 rebuild enable interface g0/0/1

[Huawei-GigabitEthernet0/0/1]dhcp option82 insert enable

[Huawei-GigabitEthernet0/0/1]dhcp option82 inse enable //使能在DHCP报文中添加Option82选项功能

[Huawei-GigabitEthernet0/0/1]dhcp option82 rebuild enable

[Huawei]dhcp option82 format default //配置在DHCP报文中添加的Option82选项的格式

[Huawei]dhcp option82 format common

[Huawei]dhcp option82 format extend

[Huawei]dhcp option82 format user-defined a1

[Huawei-GigabitEthernet0/0/1]dhcp option82 format default

[Huawei-GigabitEthernet0/0/1]dhcp option82 format common

[Huawei-GigabitEthernet0/0/1]dhcp option82 format extend

[Huawei-GigabitEthernet0/0/1]dhcp option82 format user-defined a1

[Huawei]dhcp option82 vendor-specific format vendor-sub-option 1 ascii s1 //配置在DHCP报文中的Option82选项中插入Sub9子选项

[Huawei]display dhcp option82 configuration //查看DHCP Option82的配置信息

<Huawei>reset dhcp snooping statistics global //清除全局的报文丢弃统计计数

<Huawei>reset dhcp snooping statistics interface g0/0/1 //清除接口下的报文丢弃统计计数

<Huawei>reset dhcp snooping statistics vlan 10 //清除VLAN下的报文丢弃统计计数

<Huawei>reset dhcp snooping user-bind //清除DHCP Snooping绑定表

[Huawei]dhcp snooping user-bind autosave a1 //使能DHCP Snooping绑定表的本地自动备份功能