On Thu, Nov 25, 2021 at 11:10 PM Cristian Rodríguez <[email protected]> wrote: > > On Wed, Nov 24, 2021 at 11:12 PM Dmitry Karpov via curl-library > <[email protected]> wrote: > > > > Is it possible to work around this issue somehow? > > > Yes, keep a local dns cache running and query that instead, nowadays > most newer distros ship with systemd-resolved.. if that's not what you > want, unbound will do the trick. > > To make sure my thoughts on this are correct can you tell me what icmp > error you get ON THE WIRE about : > > IPv6 server1 <not responding> > > IPv6 server2 <not responding> > > and does the attached c-ares patch make any difference?
To make it more clear..the linux kernel does not consider a fatal error the following icmp errors on connected UDP sockets: Destination Host unreachable, destination Net unreachable Source Route Failed Fragmentation Required So, the socket is doomed to reach whatever timeout c-ares have.. this is a subtl -- Unsubscribe: https://lists.haxx.se/listinfo/curl-library Etiquette: https://curl.haxx.se/mail/etiquette.html
