IPv6 routing breaking intermittently since after the latest power outage

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luca1
Neighbour

Hi,

I've been using IPv6 connectivity on my residential fibre line for over a year.  Telus installed both an Actiontech T3200M and a separate ONT box.  Since Oct 25, and the connected power outage in our area (North Delta), IPv6 routing goes down a while (an hour or so) after restarting my router (pfSense).  IPv4 is not affected (working).

 

I searched the forum, and found this thread, which seems to explain what is going on:

 

Intermittent-ipv6-connectivity-after-upgrading-to-fiber-in-North 

 

This is what I get when I try to ping an IPv6 address:

 

~# ping -6 www.google.com
PING www.google.com(sea09s17-in-x04.1e100.net (2607:f8b0:400a:804::2004)) 56 data bytes
From pfsense.localdomain (2001:569:7ef6:9f00:xxxx:xxxx:xxxx:xxxx) icmp_seq=1 Destination unreachable: No route

traceroute dies at my LAN IPv6 address.

 

The behaviour is the same whether the T3200M is in or out of the chain, which seems to points to a problem with the ONT, or even upstream?

 

I'm scared of having to call in with a relatively obscure technical issue, so I'm trying my luck here. :-)

 

Luca

 

polecat
Ambassador

@luca1  I assume the outage was wind related trees down etc. Possible your device had a voltage surge that has weakened something inside. Some devices allow for a reasonable spike some not. Surge voltages can go well over 2 to 300 volt when two hv wires slap together. I think you will require visit from telus unless an online test can be done from telus end . 30 some years power line man.  Polecat

luca1
Neighbour

Hi polecat,

 

Both ONT and T3200 are under an UPS, besides IPv4 is always 100% solid, so I doubt this is caused by something at my place.  The IPv6 default gateway route "disappears" from my router's table after a while.  I think the problem is with IPv6 Router Advertisement not working properly, much like in the thread I linked.

 

polecat
Ambassador

@luca1  If you have a good ups that is great and you should be ok. Some people rely on surge power bars there only good for one power bump won't catch the next one. Good luck with your  problem. Polecat

luca1
Neighbour

Somehow the problem fixed itself, after a couple of days.  ¯\_(ツ)_/¯   IPv6 default gateway is not expiring anymore.

It would be great if a network tech from Telus would eventually come along an explain the mystery :-)