setup ipv6 with BT Infinity(VDSL) through Mikrotik RB750 GR3

aug — Thu, 23 Dec 2021 20:04:10 GMT

Hello

I met a very strange problem about ipv6,I got a Mikrotik RB750 GR3 (ROS 7.2 RC1)router and Huawei HG612 modem, ipv4 part is no problrm. But when I try to setup v6 part,some oddly situation arrived.

I add a dhcp-client with 56 prefix

and status seems ok

and I add address

everything seems ok, and computer and cell phone shows IP v6 address assigned. the fromat is start with 2a00:23c7:f684

BUT

when i go to test-ipv6.com and ipv6-test.com,include computer and cell phone, got this kind of result

and also, at win10 ethernet status shows ipv6 "no internet asscess"

When i restart router or modem, the assigned V6 IP of terminal changed synchronous，"pretend" they are really working, but they are not working at all.

As firewall part, I just turn off the firewall, to avoid any interference。

And i reset router, repeat again, no change.

Changed to BT homehub6A, every problem disappear.

So, could any one give me some suggestion to solve this uncommon miracle？

Thank you very much.

Re: setup ipv6 with BT Infinity(VDSL) through Mikrotik RB750 GR3

aug — Thu, 24 Mar 2022 08:40:40 GMT

Finally, it solved, after ROS 7.2RC5 updated.

And do not select Add default route in DHCP v6 client

Re: setup ipv6 with BT Infinity(VDSL) through Mikrotik RB750 GR3

aug — Wed, 30 Mar 2022 09:34:21 GMT

After ROS updated.

The related fix log of ROS 7.2RC5 about this ipv6 issue:

ipv6 - do not add duplicate dynamic prefix when static already exists;

This topic

setup ipv6 with BT Infinity(VDSL) through Mikrotik RB750 GR3

Re: setup ipv6 with BT Infinity(VDSL) through Mikrotik RB750 GR3

Re: setup ipv6 with BT Infinity(VDSL) through Mikrotik RB750 GR3