DTLS not working

[Nikos Mavrogiannopoulos]

On Sat, Dec 2, 2017 at 2:38 AM, Choon Hoe Chua <choonhoe at gmail.com> wrote:
> Here is the output from syslog
>
> Thanks & best regards
>
> - chua
>
> Dec  1 03:16:28 ubuntu ocserv[3528]: main[chchua]:
> [::ffff:113.210.110.153]:16524 main.c:877: connect UDP socket from
> [::ffff:113.210.110.153]:56182: Network is unreachable
> Dec  1 03:16:30 ubuntu ocserv[3528]: main[chchua]:
> [::ffff:113.210.110.153]:16524 main.c:868: bind UDP to [::]:443: Invalid
> argument

The systemd unit/socket file doesn't need to bind to UDP port. Have
you tried removing the UDP part from it and keep systemd binding to
the TCP port only?

regards,
Nikos