Le 08/02/2017 à 01:05, Vincent Danjean a écrit : > However, the machine answers to IPv4 connections but not to IPv6 > $ time wget -4 ftp.fr.debian.org > --2017-02-08 00:53:54-- http://ftp.fr.debian.org/ > Résolution de ftp.fr.debian.org (ftp.fr.debian.org)… 212.27.32.66 > Connexion à ftp.fr.debian.org (ftp.fr.debian.org)|212.27.32.66|:80… connecté. > requête HTTP transmise, en attente de la réponse… 200 OK > Taille : 1915 (1,9K) [text/html] > [...] > real 0m0,108s > user 0m0,000s > sys 0m0,000s > $ time wget -6 ftp.fr.debian.org > --2017-02-08 00:53:58-- http://ftp.fr.debian.org/ > Résolution de ftp.fr.debian.org (ftp.fr.debian.org)… 2a01:e0c:1:1598::2 > Connexion à ftp.fr.debian.org (ftp.fr.debian.org)|2a01:e0c:1:1598::2|:80… ^C > > real 1m52,272s > user 0m0,000s > sys 0m0,000s > [I did a C-c in the shell to interrupt] > > My IPv6 connection is ok for other sites, for example: > > $ time wget -6 www.debian.org > URL transformed to HTTPS due to an HSTS policy > --2017-02-08 00:57:00-- https://www.debian.org/ > Résolution de www.debian.org (www.debian.org)… 2001:610:1908:b000::148:14, > 2001:41c8:1000:21::21:4 > Connexion à www.debian.org (www.debian.org)|2001:610:1908:b000::148:14|:443… > connecté. > requête HTTP transmise, en attente de la réponse… 200 OK > Taille : 14926 (15K) [text/html] > [...] > real 0m1,079s > user 0m0,012s > sys 0m0,000s Hi,
I can only but encourages you to try lower MTU. Here is an example: ip -6 route change default via fe80::207:cbff:feb1:7dd7 dev eth_adsl mtu 1480 You can also try with a lower value, such as 1456 or 1440. Yes, the MTU discovery is not working on proxad network, and I don't know why. Maybe it's my own firewall, I don't know, and I don't have the time to investigate. Note however that this might be a peering issue. After all, IPv6 is only 18 years old, it's a young technology preview ;) Adrien
