option 82又称为中继代理信息选项(relay agent information option),是dhcp报文中option内容的一部分。rfc3046中定义了option 82,其位置在option 255之前而在其他option之后。option 82中可以包含最多255个sub-option,若定义了option 82,至少要定义一个sub-option。目前option 82中常用的sub-option 1、sub-option 2和...
display dhcp option82 configuration [ vlan vlan-id | interface interface-type interface-number ] Parameters Parameter Description Value vlan vlan-id Displays the DHCP Option 82 configuration in a specified VLAN. The value is an integer that ranges from 1 to 4094. interface interface-type in...
The display dhcp option82 configuration command displays the DHCP Option 82 configuration. Format display dhcp option82 configuration [ vlan vlan-id | interface interface-type interface-number ] Parameters Parameter Description Value vlan vlan-id Displays the DHCP Option 82 configuration in a spec...
故障排查 通过思科 IOS 路由器 CLI,您可以启用 debug ip dhcp server class 命令显示类的匹配结果. 原文链接:http://www.cisco.com/en/US/products/ps6366/products_configuration_example09186a0080b9c12c.shtml 翻译人:谢清 译于 2012 年 8 月 http-equiv="content-type" ...
<Switch> display current-configurationinterface Ethernet1/1port link-mode bridgedhcp-snooping information enabledhcp-snooping information circuit-id string group1#interface Ethernet1/2port li 8、nk-mode bridgedhcp-snooping information enabledhcp-snooping information circuit-id string group2#interface ...
Wireless LAN Controller DHCP Option 82 Configuration ExampleCisco Aironet Series
#在端口Ethernet1/3配置Option 82的Circuit ID填充内容为group3。 [Switch-Ethernet1/3] dhcp-snooping information circuit-id string group3 [Switch-Ethernet1/3] quit 2.配置文件 <Switch> display current-configuration # interface Ethernet1/1 port link-mode bridge dhcp-snooping information enable dhcp-sn...
无线局域网控制器DHCP Option 82的配置举例
与dhcp中继支持option 82相关的协议规范有: rfc2131 dynamic host configuration protocol rfc3046 dhcp relay agent information option 5、 dhcp 中继支持option 82工作机制 dhcp客户端通过dhcp中继从dhcp服务器获取ip地址的过程与同网段的dhcp获取过程完全相同,都要经历发现、提供、选择和确认四个阶段,详细的过程请参考...
By default, a device is disabled from inserting the Option 82 field in a DHCP message. Run the quit command to return to the system view. (Optional) You can configure the format of the Option 82 field in the system or interface view. If the configuration is performed in the system view...