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Avoid using IPV6 ULA for outgoing connections

Posted: Mon Sep 18, 2023 11:24 am
by Pentium4User
Hello!

I have 2 GUA IPv6 addresses and one ULA (fd00:xxx) on my interface.
qBittorrent sometimes select the ULA address for outgoing connections which won't work because the reply from the peer will never ever reach my system.
When connecting to IPv6 GUA, always a GUA address of the system can be used.

A temporary workaround is to explicitly set the IPv6 address in the advanced settings.
Is that a problem in QBittorrent, libtorrent or on my Debian system itself?
/etc/gai.conf doesn't have any settings enabled.


Kind regards
Pentium4User

Re: Avoid using IPV6 ULA for outgoing connections

Posted: Tue Sep 19, 2023 12:09 am
by Peter
Phew.

You should report this, here: https://github.com/qbittorrent/qBittorrent/issues

Re: Avoid using IPV6 ULA for outgoing connections

Posted: Tue Sep 19, 2023 5:40 am
by Pentium4User

Re: Avoid using IPV6 ULA for outgoing connections

Posted: Tue Sep 19, 2023 9:59 am
by Peter
Thanks, the team will get back to you.
(I found that isSiteLocal(), but I bet they know something 100 times better.)

Re: Avoid using IPV6 ULA for outgoing connections

Posted: Tue Sep 19, 2023 11:03 am
by Pentium4User
Peter wrote: Tue Sep 19, 2023 9:59 am Thanks, the team will get back to you.
(I found that isSiteLocal(), but I bet they know something 100 times better.)
Site-local is the same scope, but another address range (fec0::/10).