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November 13, 2022 06:28
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Synology router configuration files for adding dynv6.com DDNS provider.
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# add following lines to /etc.defaults/ddns_provider.conf | |
[dynv6.com] | |
modulepath=/usr/syno/bin/ddns/dynv6.php | |
queryurl=http://dynv6.com |
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#!/usr/bin/php -d open_basedir=/usr/syno/bin/ddns | |
<?php | |
$script = (string)$argv[0]; | |
$ret = 'badagent'; | |
if($argc !== 5) | |
{ | |
echo $ret; | |
syslog(LOG_CRIT, $script.':'.__LINE__.' '.$ret); | |
exit(); | |
} | |
$token = (string)$argv[1]; | |
$hostname = (string)$argv[3]; | |
$ip = (string)$argv[4]; | |
// check the hostname contains '.' | |
if(strpos($hostname, '.') === false) | |
{ | |
echo $ret; | |
syslog(LOG_CRIT, $script.':'.__LINE__.' '.$ret); | |
exit(); | |
} | |
// only for IPv4 format | |
if(!filter_var($ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4)) | |
{ | |
echo $ret; | |
syslog(LOG_CRIT, $script.':'.__LINE__.' '.$ret); | |
exit(); | |
} | |
$url = 'https://dynv6.com/api/update?hostname='.$hostname.'&ipv4='.$ip.'&token='.$token; | |
// syslog(LOG_CRIT, $script.':'.__LINE__.' REQUEST '.$url); | |
$req = curl_init(); | |
curl_setopt($req, CURLOPT_URL, $url); | |
curl_setopt($req, CURLOPT_RETURNTRANSFER, TRUE); | |
$res = curl_exec($req); | |
curl_close($req); | |
// syslog(LOG_CRIT, $script.':'.__LINE__.' RESPONSE '.$res); | |
switch(trim($res)) | |
{ | |
case 'addresses updated': | |
$ret = 'good'; | |
break; | |
case "addresses unchanged": | |
$ret = 'nochg'; | |
break; | |
case 'hostname not found': | |
$ret = 'nohost'; | |
break; | |
default: | |
$ret = trim($res); | |
} | |
echo $ret; | |
syslog(LOG_CRIT, $script.':'.__LINE__.' '.$ret); |
Thanks, that could work - the only problem is that I have two IPv6 addresses listed when executing ip addr
- one that is labeled as deprecated
but is actually the one with the recently provider-updated prefix (which works when directly accessing it), and the other one that is considered active but has actually the old prefix before the new assignment (which no longer works). But I guess that is a different problem...
Yes, seems to be an IPv6 specific assignment topic. As I'm still on IPv4, can't be of any assistance here, sorry.
No worries, your suggestions already helped me a lot, thank you for that!
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So the problem is that the Synolgoy WebUI provides the IPv4 instead of the IPv6 address. Either you can somehow change that in the UI or you get the IPv6 address in the php script similar to the approach here.