Listener failed to start while IPv6 is disabled.

[qzhuyan]

Some user reports that listener fails to start while IPv6 is disabled in Kernel.

{unknown_quic_status,97}

As in
emqx/emqx#6683 (reply in thread)

when he disable ipv6 in kernel args:

    GRUB_CMDLINE_LINUX="ipv6.disable=1 ro crashkernel=auto ..."

But I could not reproduce it if I only disable ipv6 via sysconfig

sysctl -w net.ipv6.conf.all.disable_ipv6=1

[qzhuyan]

msquic requires dual stack, not much we could do here.

for linux, as long as the ipv6 is not disabled by kernel arg ipv6.disable=1 it should work even it is disabled by sysctl