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Facebook doesn't have a route to my ISP's (Cogeco) IPv6 space?
- Subject: Facebook doesn't have a route to my ISP's (Cogeco) IPv6 space?
- From: me at anuragbhatia.com (Anurag Bhatia)
- Date: Fri, 21 Dec 2018 04:39:08 +0530
- In-reply-to: <[email protected]>
- References: <[email protected]>
Hi Brain
Let's chat offlist to find why this is happening. The behaviour looks
unusual and needs more troubleshooting.
Thanks
Anurag Bhatia
(Hurricane Electric)
On Thu, Dec 20, 2018 at 11:06 PM Brian J. Murrell <brian at interlinx.bc.ca>
wrote:
> I've been trying to figure out why I can reach an IPv6 address at
> Facebook (2a03:2880:f012:3:face:b00c:0:1) through (only) one of my two
> Internet connections as well as via an HE IPv6 tunnel but not the other
> of my two ISP connections
>
> At one point in time a traceroute was dying inside of he.net:
>
> Host Loss% Snt Last Avg Best
> Wrst StDev
> 1. 2001:1970:5261:d600::1 0.0% 7 2.1 1.3 0.7
> 2.9 0.8
> 2. 2001:1970:4000:82::1 0.0% 7 10.0 14.0 8.3
> 37.9 10.6
> 3. 2001:1970:0:1a6::1 16.7% 7 13.2 215.5 10.8
> 1031. 455.9
> 4. he.ip6.torontointernetxchange.net 0.0% 7 12.3 12.9
> 11.2 15.3 1.6
> 5. 100ge9-2.core2.chi1.he.net 0.0% 7 23.6 23.0
> 21.3 27.6 2.2
> 6. 100ge15-2.core1.chi1.he.net 0.0% 7 21.7 22.5
> 21.6 24.9 1.2
> 7. 100ge12-1.core1.atl1.he.net 0.0% 7 34.2 35.1
> 34.1 36.1 0.7
> 8. 100ge5-1.core1.tpa1.he.net 0.0% 7 49.1 46.6
> 44.8 49.1 1.5
> 9. 100ge12-1.core1.mia1.he.net 0.0% 7 51.6 54.5
> 50.5 73.3 8.3
> 10. ???
>
> But I think it getting that far time was an anomaly and frankly it
> usually dies even before exiting my ISP's (Cogeco) network like this:
>
> Host Loss% Snt Last Avg
> Best Wrst StDev
> 1. 2001:1970:5261:d600::1 0.0% 33 0.6 0.7
> 0.6 1.0 0.1
> 2. 2001:1970:4000:82::1 0.0% 33 8.2 10.8
> 8.1 40.5 5.6
> 3. 2001:1970:0:1a7::1 15.2% 33 23.4 20.1
> 16.5 23.4 1.5
> 4. 2001:1970:0:61::1 33.3% 33 16.8 17.6
> 14.5 25.9 2.5
> 5. 2001:1978:1300::1 0.0% 33 16.0 17.5
> 14.2 29.6 3.1
> 6. 2001:1978:203::45 0.0% 33 30.7 30.7
> 28.4 35.1 1.7
> 7. ???
>
> When I asked the kind folks at he.net for some advice about the problem
> (i.e. in the first traceroute above) their diagnosis was that
> Facebook's IPv6 router(s) likely didn't have a route back to my Cogeco
> IPv6 address.
>
> Trying to talk to my ISP (again, Cogeco) has been impossible. One
> simply cannot reach the people who know more than how to reset your
> router and configure your e-mail.
>
> I wonder how I could go any further with this to confirm the diagnosis
> that Facebook doesn't have a route to the Cogeco network's IPv6 address
> space given that I only have access to my end of the path.
>
> Cheers,
> b.
>
>
--
Anurag Bhatia
anuragbhatia.com
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