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-rwxr-xr-xsrc/conf_mode/dynamic_dns.py9
1 files changed, 6 insertions, 3 deletions
diff --git a/src/conf_mode/dynamic_dns.py b/src/conf_mode/dynamic_dns.py
index 879086cc4..fe72a3180 100755
--- a/src/conf_mode/dynamic_dns.py
+++ b/src/conf_mode/dynamic_dns.py
@@ -93,9 +93,12 @@ def verify(dyndns):
if 'username' not in config:
raise ConfigError(f'"username" {error_msg}')
- if (config['protocol'] not in dualstack_supported
- and config['ip_version'] == 'both'):
- raise ConfigError(f'"{config["protocol"]}" does not support IPv4 and IPv6 at the same time')
+ if config['ip_version'] == 'both':
+ if config['protocol'] not in dualstack_supported:
+ raise ConfigError(f'"{config["protocol"]}" does not support IPv4 and IPv6 at the same time')
+ # dyndns2 protocol in ddclient honors dual stack only for dyn.com (dyndns.org)
+ if config['protocol'] == 'dyndns2' and 'server' in config and config['server'] != 'members.dyndns.org':
+ raise ConfigError(f'"{config["protocol"]}" for "{config["server"]}" does not support IPv4 and IPv6 at the same time')
return None