When Cox first launched IPv6 in my area, I'd lose v6 routing randomly every few days until I manually renewed the address on my router. Then I found out one tiny config difference between Cox and Comcast is that Cox doesn't support rapid commit renews. So I removed that from my router config and I haven't lost routing since.
Also if your customers use a Motorola/Arris SB6183 model modem, the firmware Cox uses has a major bug where it drops packets. Cox is testing new firmware and rolling it out to those who request it. See: https://www.dslreports.com/forum/r30562682-Arris-SB6183-IPv6-TCP6-bug-Looking-for-firmware-update ~Jared On Sat, Mar 19, 2016 at 10:10 AM, Fred Posner <[email protected]> wrote: > I had a major issue with Cox when they were deploying ipv6. They set a > rate limiter on packets, and any voip call would trigger it. Once the > call ended, the speed would come back. > > The way we proved it was to ping from the router to the immediate hop > after the modem... once we could prove it this way to the field tech, > they got "tier 3" to call a network engineer and resolve it. > > Hopefully it's similar. > > Fred Posner > The Palner Group, Inc. > http://www.palner.com (web) > +1-224-334-FRED (3733) direct > > On 03/19/2016 12:48 PM, Carlos Alvarez wrote: > > I'm posting this info here because I know quite a few of us have BYOI > > customers and may be affected by this. Cox users have been reporting a > > lot of outages lately in certain areas (it seems to cluster by whatever > > areas Cox is making changes in). I found that when there is a supposed > > outage, the only thing that fails is DNS. You can still > > ping/trace/connect with an IP address. I looked at the router's > > DHCP-assigned info and found that it was seeing an IPv6 DNS as its > > primary, with the usual two IPv4 servers as secondary/tertiary. Oddly, > > this didn't seem to happen right away, but would happen after the router > > had been up for a few hours. My best guess at the root problem is that > > Cox isn't properly handling IPv6 yet, even though they are advertising > > it to the router. Completely disabling IPv6 in the router fixes it. > > > > > > _______________________________________________ > > VoiceOps mailing list > > [email protected] > > https://puck.nether.net/mailman/listinfo/voiceops > > > _______________________________________________ > VoiceOps mailing list > [email protected] > https://puck.nether.net/mailman/listinfo/voiceops >
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