ros 动态域名

先在 dhcp.biz 注册一个动态域名，并添加你的动态域名

###302 

:global ddnsuser ("ddnsusername")

:global ddnspass ("ddnspasswd")

:global ddnshost ("a3.ddnsusername.dhcp.biz")

:global ddnslastip [:tostr [:resolve $ddnshost] ]

:global ddnsnewip1 [ /ip address get [/ip address find interface=CU ] address ]  ##"CU" 这个CU说是外网ip那个接口名称是CU

:global ddnsnewip [:pick $ddnsnewip1 0 [:find $ddnsnewip1 "/"]]

:if ($ddnslastip != $ddnsnewip) do={

/tool dns-update name=$ddnshost address=$ddnsnewip key-name=$ddnsuser key=$ddnspass

:log info ("change ddns a3.ddnsusername.dhcp.biz IP:" . $ddnslastip . " to " . $ddnsnewip)

}