Feature Request: Allow MikroTik Cloud DDNS to Select IPv4 or IPv6 Synchronization

RouterOS
1

Subject: Feature Request: Allow MikroTik Cloud DDNS to Select IPv4 or IPv6 Synchronization

Hello MikroTik Team,

I would like to suggest an improvement for the RouterOS Cloud DDNS feature.

Currently, MikroTik Cloud DDNS automatically publishes both IPv4 and IPv6 addresses.
However, in many ISP environments, the IPv4 address is behind CGNAT (Carrier-Grade NAT) and is not publicly reachable, while IPv6 is fully public and accessible.

In this situation:

  • The published IPv4 address is unusable

  • Some clients still try IPv4 first

  • Remote access may fail or experience delays

  • Users cannot choose to publish IPv6 only

It would be very useful if RouterOS Cloud DDNS could provide options such as:

  • Sync IPv4 only

  • Sync IPv6 only

  • Sync both IPv4 and IPv6

For example:

/ip cloud
set ddns-address-family=ipv6

or via WinBox/WebFig checkboxes.

This would greatly improve usability for users behind CGNAT who rely on native IPv6 connectivity.

Thank you for your excellent work on RouterOS and MikroTik products.

Best regards

2

Or you could just

/ip firewall address-list add address=cloud2.mikrotik.com list=mt-cloud2
/ip firewall filter add action=drop chain=output comment="Block IPv4 IP Cloud DDNS" dst-address-list=mt-cloud2 dst-port=15252 protocol=udp
/ip cloud set ddns-enabled=auto
/ip cloud set ddns-enabled=yes
3

Thanks, really appreciate it.