On my Debian/unstable machine at home, IPv6 connection to https://www.flickr.com/ freezes most of the time:
zira:~> wget -d https://www.flickr.com/ DEBUG output created by Wget 1.19.1 on linux-gnu. Reading HSTS entries from /home/vinc17/.wget-hsts URI encoding = ‘UTF-8’ Converted file name 'index.html' (UTF-8) -> 'index.html' (UTF-8) --2017-02-16 02:46:17-- https://www.flickr.com/ Certificates loaded: 173 Resolving www.flickr.com (www.flickr.com)... 2a00:1288:7c:800::4001, 2a00:1288:7c:800::4000, 87.248.114.11, ... Caching www.flickr.com => 2a00:1288:7c:800::4001 2a00:1288:7c:800::4000 87.248.114.11 87.248.114.12 Connecting to www.flickr.com (www.flickr.com)|2a00:1288:7c:800::4001|:443... connected. Created socket 3. Releasing 0x000055fbccaf8f70 (new refcount 1). Then, I no longer get anything. I don't have any problem with: * IPv4 to https://www.flickr.com/ from this machine (using wget -4 ...). * IPv6 to http://www.flickr.com/ from this machine (well, the redirection to https is done, then it blocks for https as above). * IPv6 to https://www.debian.org/ or https://www.google.com/ from this machine. * IPv6 to https://www.flickr.com/ from an Ubuntu machine on a different network (even when the used IP is the same, i.e. 2a00:1288:7c:800::4001). Note: I've used wget here for the information it gives, but from this machine to https://www.flickr.com/ the connection also freezes with Firefox and Lynx. Any idea on where the problem could come from? -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
