Hey, this topic is indeed interesting. I've read up on the bugreport: The patch does not seem to include the preference flags to getaddinfo(3) as discussed here https://bugzilla.redhat.com/show_bug.cgi?id=512032#c8. Is this intentional? https://biplane.com.au/blog/?p=30 lists the first three options to globally control the ipv6 source address preference on linux. Technique four and five can be used per socket (and by extension per process): - Technique One: Deprecate the addresses you don't want selected via ip addr change $ip dev $dev preferred_lft 0 - Technique Two: Modify the label table via ip addrlabel - Technique Three: Prefer privacy addresses via sysctl /proc/sys/net/ipv6/conf/$dev/use_tempaddr - Technique Four: setsockopt(2) (may be set per socket) - Technique Five: bind(2) (may be set per socket) Is this assessment correct or did I miss some options? BR Maximilian Eschenbacher _______________________________________________ openssh-unix-dev mailing list openssh-unix-dev@xxxxxxxxxxx https://lists.mindrot.org/mailman/listinfo/openssh-unix-dev