Hi Amos, thank you for your quick answer. On Thu, Jul 25, Amos Jeffries wrote: > On 25/07/2013 6:52 p.m., Dieter Bloms wrote: > >Hi, > > > >we use ipv4 and ipv6 tcp protocol for our outgoing interface. > >The most sides are accessable via ipv6, if a AAAA Record is available, > >so ipv6 works great in most cases. > > > >Some sides like http://www.hsp-steuer.de/ announce ipv6 records, but are > >not accessable via ipv6. > > Send them a bug report? I did, but the provider is resistant about this. > >Is it possible that squid notice this fail so that future request will > >go to ipv4 directly and the user doesn't have to wait for the long > >tcp timeout every time ? > > Yes it is possible and Squid already does. > If you check your cachemgr "ipcache" report you can see this as the > DNS results domain/IP mapping list OK/BAD flags on each IP address > known. BAD will not be used, OK will be tried, success is always a > gamble. the ipv6 adress 2001:8d8:88c:37e2:3e1b:35f0:e10:1 is not reachable on port 80, but cachemgr says: --snip-- www.hsp-steuer.de 33 1110 2( 0) 2001:8d8:88c:37e2:3e1b:35f0:e10:1-OK 82.165.11.88-OK --snip-- so is this a bug in squid, that the ipv6 address is listed as OK ? -- Best regards Dieter -- I do not get viruses because I do not use MS software. If you use Outlook then please do not put my email address in your address-book so that WHEN you get a virus it won't use my address in the >From field.
