Facebook doesn't have a route to my ISP's (Cogeco) IPv6 space?

Thu Dec 20 18:27:17 UTC 2018

Cogent != Cogeco 

----- 
Mike Hammett 
Intelligent Computing Solutions 

Midwest Internet Exchange 

The Brothers WISP 

----- Original Message -----

From: "David Guo via NANOG" <nanog at nanog.org> 
To: "Brian J. Murrell" <brian at interlinx.bc.ca>, nanog at nanog.org 
Sent: Thursday, December 20, 2018 11:39:00 AM 
Subject: RE: Facebook doesn't have a route to my ISP's (Cogeco) IPv6 space? 

It's problem from Cogentco, they do not have IPv6 peer with HE.net and Google 

-----Original Message----- 
From: NANOG <nanog-bounces at nanog.org> On Behalf Of Brian J. Murrell 
Sent: Tuesday, December 18, 2018 4:02 AM 
To: nanog at nanog.org 
Subject: Facebook doesn't have a route to my ISP's (Cogeco) IPv6 space? 

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. 

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