Connecting to incorrect Cloudflare POPs on 2degrees IPv6

Forums › 2degrees (including Slingshot, Orcon, Flip, Stuff Fibre, MyRepublic, 2talk and Vocus) › Connecting to incorrect Cloudflare POPs on 2degrees IPv6

Kodiack

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#309204 28-Sep-2023 17:32

Hello,

I'm wondering if anyone else is experiencing similar issues. I'm based in Auckland, but on 2degrees IPv6 I'm being routed to Cloudflare's Christchurch and Sydney POPs. This doesn't happen on IPv4, and other ISPs on IPv6 don't seem to be experiencing this same issue.

For example, if I look here, I'm seeing "colo=CHC" or "colo=SYD" because it's IPv6:
https://[2606:4700:4700::1111]/cdn-cgi/trace
https://cloudflare.com/cdn-cgi/trace

But if I look here, I'm seeing "colo=AKL" for IPv4, as expected:
https://1.1.1.1/cdn-cgi/trace

Any insight into why this may be happening?

KiwiSurfer

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#3136050 28-Sep-2023 17:44

I'm seeing SYD, CHC and AKL so same as you. May be a Cloudflare-specific issue rather than 2degrees. I see other CDNs such as AWS Cloudfront are routing fine to AKL on IPv6.

Behodar

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#3136056 28-Sep-2023 17:54

KiwiSurfer:

May be a Cloudflare-specific issue rather than 2degrees.

I'm on Voyager and it's giving AKL.

freitasm

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#3136078 28-Sep-2023 19:04

It will depend on routes available and Cloudflare also directs requests to different Pop depending on traffic at the time.

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Kodiack

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#3136081 28-Sep-2023 19:08

freitasm: It will depend on routes available and Cloudflare also directs requests to different Pop depending on traffic at the time.

It has been like this for several days though, and 2degrees specifically over IPv6 seems to be using further POPs. Seems like something isn't quite right there.

KiwiSurfer

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#3136090 28-Sep-2023 19:24

Kodiack:
freitasm: It will depend on routes available and Cloudflare also directs requests to different Pop depending on traffic at the time.

It has been like this for several days though, and 2degrees specifically over IPv6 seems to be using further POPs. Seems like something isn't quite right there.

It's most likely not 2degrees making the decisions though. It's a Cloudflare decision. 2degrees could reach out to them but Cloudflare likely have thier own business reasons for their routing. They deliberately route certain NZ-origin traffic to SYD or other offshore POPs for cost reasons for example. Not really to do with the NZ RSPs involved.

Linux

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#3136091 28-Sep-2023 19:27

@pwner is this something you can take a look at?

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dhoulbrooke

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#3136395 29-Sep-2023 10:40

Has been hitting SYD since around the middle of the month from my monitoring.

pwner

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2degrees

#3137589 2-Oct-2023 10:14

looks like it is related to some issues we saw with Cloudflare back on the 14th of Sept where we were seeing packet loss over AKL-IX to Cloudflare on IPv6. We are checking in with Cloudflare to resolve.

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Linux

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#3137608 2-Oct-2023 11:05

pwner:

looks like it is related to some issues we saw with Cloudflare back on the 14th of Sept where we were seeing packet loss over AKL-IX to Cloudflare on IPv6. We are checking in with Cloudflare to resolve.

@pwner Great thanks for responding and looking into it

Kodiack

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#3138222 3-Oct-2023 12:58

I appear to be connecting to the AKL POP again over IPv6 now - nice. :)

Restarted my many local Cloudflare tunnels and they've all got akl connections now.

stick

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#3138235 3-Oct-2023 13:27

Kodiack:

I appear to be connecting to the AKL POP again over IPv6 now - nice. :)

Not that it's really affecting me, but on Electric Kiwi Broadband (2degrees) I'm still connecting to Sydney for IPv6

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pwner

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2degrees

#3138586 4-Oct-2023 08:22

We believe this issue should now be resolved for all users. Please check again.

Any posts are personal comments and not that of my employer

stick

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#3139584 4-Oct-2023 09:40

pwner: We believe this issue should now be resolved for all users. Please check again.

Yep, all fixed now. Thanks!

Kodiack

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#3142702 4-Oct-2023 12:31

Looking great here. Results on https://speed.cloudflare.com/ are way better than I've ever seen before too - downstream speeds are ~900 Mbps, and latency is ~3 ms. That's a marked improvement from what I've been seeing previously. :)