no ip domain lookup


no ip domain lookup 的作用是,当你敲入一个不能识别的命令时,它不会象查找域名一样,去搜DNS服务器。

默认情况下,在CISCO设备上直接输入IP地址或非命令名后,设备会试图执行PING命令,此时,若为非命令名,则试图连接指定或默认的DNS服务器,以解析此非命令名的IP地址。

如:
R2#configg
Translating “configg”…domain server (255.255.255.255)
(255.255.255.255)
Translating “configg”…domain server (255.255.255.255)

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By Ctrl | Alt | Del Posted in Cisco

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