Barnet
ULTIMATE Member
In many ways it doesn't matter to me, but as a "toe in the water" on IPv6 (and because my IPv4 connection is via CGNAT) I set up a Think Broadband monitor on my Community Fibre IPv6 address. The address I'm using is a /64 address and looks "likely".
The monitor is clearly terminating at my router as I needed to set the IPv6 interface to respond to ping before it started working at all.
This works for 8 days then stops working and the address has become an address starting with FE80 (so not as far as I can tell a "correct" address). I can fix this by a router reboot.
It is more or less 8 days to the minute after a router reboot that the monitor stops working.
I guess it is the IPv6 DHCP lease renewal process failing between my Draytek router and Community Fibre. The router says "DHCPv6 Client" and the connection itself (in the IPv4 form) all works fine for more than 8 days.
I have no other IPv6 traffic but I can see the data counters clocking up while it is working. I haven't watched what happens to the counters when it stops working. I'll check that next week.
I've still got the indicated IPv6 packet loss of a few percent as well but that is probably something else.
The monitor is clearly terminating at my router as I needed to set the IPv6 interface to respond to ping before it started working at all.
This works for 8 days then stops working and the address has become an address starting with FE80 (so not as far as I can tell a "correct" address). I can fix this by a router reboot.
It is more or less 8 days to the minute after a router reboot that the monitor stops working.
I guess it is the IPv6 DHCP lease renewal process failing between my Draytek router and Community Fibre. The router says "DHCPv6 Client" and the connection itself (in the IPv4 form) all works fine for more than 8 days.
I have no other IPv6 traffic but I can see the data counters clocking up while it is working. I haven't watched what happens to the counters when it stops working. I'll check that next week.
I've still got the indicated IPv6 packet loss of a few percent as well but that is probably something else.























