In message <CAFG21ohZ6MV6Tef_sWuwV6kmAZmHQ3nFRLq-FkdU38g=vl3...@mail.gmail.com> , Todd Lyons writes: > On Sat, Oct 25, 2014 at 10:26 AM, Matthew Kaufman <matt...@matthew.at> wrote: > >> > >> Random IPv6 complaint of the day: redirects from FCC.gov to pay.gov fail > >> when clients have IPv6 enabled. Work fine if IPv6 is off. One more set of > > Still broken, 7 months later. And again, I was too busy trying to pay to tr > y > > to pull a full set of logs. But if you do something on the FCC site that > > requires payment, the redirection flow dies halfway through if you're comin > g > > from IPv6 and works fine if you turn it off... so yet another computer in > > the house has IPv6 disabled until manually turned back on. > > FWIW, eftps.gov is also unreachable via ipv6. I tried all of miredo, > and my home Sixxs tunnel, and a HE tunnel from somewhere else. I used > the 4or6 plugin to temporarily disable ipv6 and both sites loaded > straight away.
If a site is unreachable your client should switch to IPv4 unless a IPv6 literal has been used. If your client take ages to switch over report a bug to the client vendor. It should not take ages to switch between multiple server addresses. IPv4 + IPv6 is just a example of multiple server addresses. > eftps.gov and pay.gov appear to be managed separately since both their > ipv4 and ipv6 netblocks are not in the same netblocks, and my path to > them is not the same: > > eftps.gov has IPv6 address 2620:10f:400e:a::13 > mtr to eftps.gov via Sixxs: > Host Loss% Snt Last > Avg Best Wrst StDev > 1. 2604:8800:100:82bc:ddcb:ae62:e3da:c91f 0.0% 16 0.9 > 0.9 0.9 1.6 0.2 > 2. gw-701.chi-03.us.sixxs.net 0.0% 16 71.6 > 72.4 68.6 78.3 2.4 > 3. uschi03.sixxs.net 0.0% 16 70.2 > 71.8 69.2 78.8 2.4 > 4. 2620:0:6b0:a::1 0.0% 15 67.3 > 73.3 67.3 79.7 3.2 > 5. tge3-1.fr3.ord4.ipv6.llnw.net 0.0% 15 73.6 > 75.4 70.1 85.4 4.9 > 6. ve8.fr3.ord.ipv6.llnw.net 0.0% 15 73.5 > 79.7 72.9 90.4 5.7 > 7. 2600:805:41f::5 0.0% 15 104.4 > 81.9 74.2 104.4 9.0 > 8. 2600:806::12 0.0% 15 105.2 > 104.0 100.6 109.8 2.9 > 9. 2600:806:12f::2e 0.0% 15 134.5 > 135.7 131.4 147.4 4.1 > 10. 2620:10f:400e:1::4004 0.0% 15 161.5 > 145.9 131.5 163.8 9.9 > 11. ??? > > pay.gov has IPv6 address 2605:3100:fffd:100::15 > mtr to pay.gov via Sixxs: > Host Loss% Snt Last > Avg Best Wrst StDev > 1. 2604:8800:100:82bc:ddcb:ae62:e3da:c91f 0.0% 11 0.9 > 0.9 0.7 1.1 0.1 > 2. gw-701.chi-03.us.sixxs.net 0.0% 11 70.8 > 70.9 67.0 74.4 2.2 > 3. uschi03.sixxs.net 0.0% 11 73.7 > 73.7 69.8 90.1 5.6 > 4. 2620:0:6b0:a::1 0.0% 11 70.6 > 73.7 70.4 86.2 5.0 > 5. tge3-1.fr3.ord4.ipv6.llnw.net 0.0% 11 72.4 > 75.6 71.5 82.6 3.2 > 6. ve8.fr3.ord.ipv6.llnw.net 0.0% 11 76.1 > 79.3 74.7 87.9 4.0 > 7. tge32-3.fr3.dal.ipv6.llnw.net 0.0% 11 99.1 > 100.1 96.4 106.2 2.7 > 8. sl-st30-dal-te0-14-0-1.v6.sprintlink.net 0.0% 11 98.2 > 102.0 98.2 111.0 4.4 > 9. sl-crs1-fw-be40.v6.sprintlink.net 0.0% 11 99.5 > 100.5 96.2 105.5 2.5 > 10. sl-gw38-fw-po0-0.v6.sprintlink.net 0.0% 11 96.4 > 98.8 96.4 105.1 2.6 > 11. 2600:4:2000:4::9 0.0% 11 100.2 > 102.0 99.0 107.0 2.7 > 12. ??? > > I was hoping an eftps.gov or pay.gov employee was casting an eye this > way, but it doesn't look like anybody from there is subscribed to > NANOG. > > ...Todd > -- > The total budget at all receivers for solving senders' problems is $0. > If you want them to accept your mail and manage it the way you want, > send it the way the spec says to. --John Levine -- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: ma...@isc.org