24、ROS DDNS简单脚本(changeip)
一、基本做法:
1、申请DDNS账号:
www.changeip.com
2、激活:到邮箱中激活
3、ROS用脚本更新:
:global ddnsuser "123456789@qq.com"
:global ddnspass "www.123"
:global ddnshost "wpjwyj.myddns.com"
:global ddnsinterface "ether2"
:global ddnslastip
:global ddnsip [ /ip address get [/ip address find dynamic=yes interface=$ddnsinterface ] address ]
:if ( [:typeof $ddnslastip]="nothing" ) do={ :global ddnslastip 0.0.0.0/0 }
:if ( [:typeof $ddnsip]="nothing" ) do={
:log info ("DDNS: No ip address present on " . $ddnsinterface . ", please check.")
} else={
:if ($ddnsip != $ddnslastip) do={
:log info "DDNS: Sending UPDATE!"
:log info [ /tool dns-update name=$ddnshost address=[:pick $ddnsip 0 [:find $ddnsip "/"] ] key-name=$ddnsuser key=$ddnspass ]
:global ddnslastip $ddnsip
} else={
:log info "DDNS: No change"
}
}

二、另类做法:
1、一条语句就搞定:
/tool dns-update name=wpjwyj.changeip.net address=127.0.0.255 key-name=wpjwyj key=123456

2、127.0.0.255(只要是广播地址就可以)的作用:发送广播,获取当前WAN网口的IP。
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