DynDNS Dienst mit Mikrotik Router OS 6.4

# Set needed variables
:local username "theusernamename"  
:local password "thepasswordword"  
:local waninterface "ether1"  
:local ddnshost blabla.dyndns.org

:global dyndnsForce

# Initialize needed variables
# Possible format of ipfresh: 192.168.100.100/24
:local ipddns [:resolve $ddnshost];
:local ipfresh [ /ip address get [/ip address find interface=$waninterface ] address ]

# print some debug info
log info ("Current IP on $waninterface = $ipfresh")  
log info ("Current IP of $ddnshost = $ipddns")  


:if ([ :typeof $ipfresh ] = nil ) do={
   :log warning ("DynDNS: No ip address on $waninterface . Check it!")  
} else={
	:for i from=( [:len $ipfresh] - 1) to=0 do={ 
		:if ( [:pick $ipfresh $i] = "/") do={   
			:set ipfresh [:pick $ipfresh 0 $i];
	   } 
	}
	log info ("Formatted current IP on $waninterface = $ipfresh")  

	:if (($ipddns != $ipfresh) || ($dyndnsForce = true)) do={
		
		:log info ("DynDNS: IP-DynDNS = $ipddns")  
		:log info ("DynDNS: IP-Fresh = $ipfresh")  
		:log info "DynDNS: Update IP needed, Sending UPDATE...!"  
		
		:global str "/nic/update\?hostname=$ddnshost&myip=$ipfresh&wildcard=NOCHG&mx=NOCHG&backmx=NOCHG"  
		:set dyndnsForce false
		/tool fetch address=members.dyndns.org src-path=$str mode=http user=$username \
			password=$password dst-path=("/DynDNS.".$ddnshost)  
		
		:delay 1
		
		:global str [/file find name="DynDNS.$ddnshost"];  
		/file remove $str
		:global ipddns $ipfresh
		
		:log info "DynDNS: IP updated to $ipfresh!"  
		
	} else={
    :log info "DynDNS: dont need changes";  
	}
} 

/system scheduler add comment="" disabled=no interval=15m name=dyndns_update_ether1 on-event=\  
    dyndns_update_script_ether1 start-date=jan/01/1970 start-time=00:00:00 policy=\
		ftp,reboot,read,write,policy,test,winbox,password,sniff,sensitive,api
/system scheduler add comment="" disabled=no interval=1d name=dyndns_force_update_start on-event=\  
    dyndns_force_update_script start-date=jan/01/1970 start-time=02:00:00 policy=\
		ftp,reboot,read,write,policy,test,winbox,password,sniff,sensitive,api