IPv6 DHCP server for one VLAN only

RouterOS General
1

HI,
From my ISP I have:
IPv6 Prefix: 2a00:1940:1234:56::/64
IPv6 Delegated Prefix: 2a00:1940:123:a00::/56
https://ibb.co/ByFxknL
I have configured it and then split into /64 prefixes and addressed on VLANs where I obtain them statically on each device I need. Now I’d like to setup a DHCP server with a separate pool for 2a00:1940:123:a03::/64 in VLAN30, but I am getting error because it overlaps with existing /56:
https://ibb.co/ZJkNSrt
I thought setting it via the ND will resolve my issue but this shit is just deploying it across all VLANs adding them dynamically. Even if I knew how to limit it to just one VLAN it will not work because Chromecasts configured statically to IPv4 address only are getting IPv6 regardless.
https://ibb.co/7y0MbyW
https://ibb.co/3SGD73G

Is there any way to do it?

2

Historically the Mikrotik DHCPv6 server has only supported prefix delegation, not handing out individual addresses. The latest testing branch release (7.17) adds address delegation, details in the help pages https://help.mikrotik.com/docs/spaces/ROS/pages/24805500/DHCP#DHCP-EnablingIPv6Addressdelegation

3

And how this is supposed to work? I’ve updated to 7.17 and I am now able to create a DHCPv6 server: https://ibb.co/yXcty60 but no device in vlan30 network is being offered an address from that prefix. There is also no “lease” tab what so ever so I am not quite sure what this server is for.

4

The error says: https://ibb.co/pPYvPML but it won’t let me creating another /64 pool from pool existing /56: https://ibb.co/ByFxknL