There’re tons of them !
Here are a couple of PMTUD test: tbit from 2001:df0:4:4000::1:115 to 2001:8d8:1001:238f:3cf1:2223:88f2:c80a server-mss 1440, result: pmtud-fail app: http, url: http://diskmakerx.com/ [ 0.009] TX SYN 64 seq = 0:0 [ 0.288] RX SYN/ACK 64 seq = 0:1 [ 0.288] TX 60 seq = 1:1 [ 0.298] TX 233 seq = 1:1(173) [ 0.577] RX 60 seq = 1:174 [ 0.812] RX 1500 seq = 1:174(1440) [ 0.812] RX 1500 seq = 1441:174(1440) [ 0.812] RX 1500 seq = 2881:174(1440) [ 0.812] RX 69 seq = 4321:174(9) [ 0.812] RX 1500 seq = 4330:174(1440) [ 0.812] RX 1500 seq = 5770:174(1440) [ 0.812] TX PTB 1280 mtu = 1280 [ 0.812] RX 1500 seq = 7210:174(1440) [ 0.816] RX 1500 seq = 8650:174(1440) [ 0.822] TX 60 seq = 174:1 [ 0.883] RX 1500 seq = 10090:174(1440) [ 0.892] RX 1500 seq = 11530:174(1440) [ 1.651] RX 1500 seq = 1:174(1440) [ 1.651] TX PTB 1280 mtu = 1280 [ 3.335] RX 1500 seq = 1:174(1440) [ 3.335] TX PTB 1280 mtu = 1280 [ 6.703] RX 1500 seq = 1:174(1440) [ 6.703] TX PTB 1280 mtu = 1280 [ 13.439] RX 1500 seq = 1:174(1440) tbit from 2001:df0:4:4000::1:115 to 2001:8d8:1000:d2ea:95d2:30d0:d4ad:9357 server-mss 1440, result: pmtud-fail app: http, url: http://www.legalveritas.es/ [ 0.009] TX SYN 64 seq = 0:0 [ 0.285] RX SYN/ACK 64 seq = 0:1 [ 0.285] TX 60 seq = 1:1 [ 0.297] TX 238 seq = 1:1(178) [ 0.572] RX 60 seq = 1:179 [ 0.810] RX 1492 seq = 1:179(1432) [ 0.810] TX PTB 1280 mtu = 1280 [ 0.825] RX 1500 seq = 1433:179(1440) [ 0.825] RX 1500 seq = 2873:179(1440) [ 0.825] RX 1500 seq = 4313:179(1440) [ 0.825] RX 1500 seq = 5753:179(1440) [ 0.825] RX 1500 seq = 7193:179(1440) [ 0.825] RX 1500 seq = 8633:179(1440) [ 0.825] RX 1500 seq = 10073:179(1440) [ 0.825] RX 1500 seq = 11513:179(1440) [ 0.825] RX 1500 seq = 12953:179(1440) [ 1.636] RX 1492 seq = 1:179(1432) [ 1.636] TX PTB 1280 mtu = 1280 [ 3.296] RX 1492 seq = 1:179(1432) [ 3.296] TX PTB 1280 mtu = 1280 [ 6.616] RX 1492 seq = 1:179(1432) [ 6.616] TX PTB 1280 mtu = 1280 [ 13.248] RX 1492 seq = 1:179(1432) Saludos, Jordi -----Mensaje original----- De: <ipv6-ops-bounces+jordi.palet=consulintel...@lists.cluenet.de> en nombre de Mikael Abrahamsson <swm...@swm.pp.se> Organización: People's Front Against WWW Responder a: <swm...@swm.pp.se> Fecha: viernes, 14 de octubre de 2016, 12:32 Para: JORDI PALET MARTINEZ <jordi.pa...@consulintel.es> CC: <ipv6-ops@lists.cluenet.de> Asunto: Re: contact with One & One ? On Fri, 14 Oct 2016, JORDI PALET MARTINEZ wrote: > Hi, > > I’ve discovered, several months ago already, that all the 1&1 web sites > with IPv6 support enabled are broken, because they filter PMTUD, so any > residential customer with has a reduced MTU because PPP or any other > encapsulation/tunnel, etc., is not reaching them. Do you have an example of a website they host that I can test against? -- Mikael Abrahamsson email: swm...@swm.pp.se ********************************************** IPv4 is over Are you ready for the new Internet ? http://www.consulintel.es The IPv6 Company This electronic message contains information which may be privileged or confidential. The information is intended to be for the use of the individual(s) named above. If you are not the intended recipient be aware that any disclosure, copying, distribution or use of the contents of this information, including attached files, is prohibited.
