:local ednsuser "DDNS用户名"

:local ednspass "DDNS密码"

:local ednshost "DDNS域名地址，如：123.f3322.org"

:local ednsinterface "网络端口，如pppoe-out1"

:local members "http://members.3322.org/dyndns/update?system=dyndns"

:local status

:local status [/interface get [/interface find name=$ednsinterface] running]

:if ($status!=false) do={

:local ednslastip [:resolve $ednshost]

:if ([ :typeof $ednslastip ] = nil ) do={ :local ednslastip "0" }

:local ednsiph [ /ip address get [/ip address find interface=$ednsinterface ] address ]

:local ednsip [:pick $ednsiph 0 [:find $ednsiph "/"]]

:local ednsstr "&hostname=$ednshost&myip=$ednsip"

:if ($ednslastip != $ednsip) do={/tool fetch url=($members . $ednsstr) mode=http user=$ednsuser password=$ednspass dst-path=$ednshost

:delay 2

:local result [/file get $ednshost contents]

:log info ($ednshost . " " .$result)

/file remove $ednshost ;

}

}