jail sshd ipv6 error

[Ørjan Tønder]

Apr 26 08:12:04 irssi sshd[41415]: error: Bind to port 22 on
2001:dead:beef:0:dacb:8aff:feea:9 failed: Can't assign requested address.
Apr 26 08:12:04 irssi sshd[41415]: fatal: Cannot bind any address.

this is solved by

net.inet6.ip6.dad_count: 1 -> 0

what am i actually disabling here?

And why are sshd inside jails not able too bind address dad_count is
enabled?


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