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 <br...@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
