[OpenSIPS-Users] Ipv6 on non-default port not working

[Robert Dyck]

I am embarrassed to say that I created my own problem. I had forgotten some of 
the details of my firewall configuration. Iptables was set to allow everything 
from the LAN, that is to say 192.168.0.0. Ip6tables was not set that way 
because the hosts on the LAN had global addresses. To allow SIP incoming from 
outside I had allowed port 5060 in both iptables and ip6tables. For port 5062 
in IPV6 I need to allow it regardless whether the request originated on the 
LAN or not. If I had been testing with a remote site, I probably would have 
tweaked the firewall at the start.

Note to self -- When in doubt, briefly disable the firewall and try again.

Thank you

On December 15, 2016 02:36:43 PM Bogdan-Andrei Iancu wrote:
> Hi Robert,
> 
> As the waiting queue (on the socket) is 0, there are 2 options:
> 
> 1) packets are not delivered to the socket (firewall??)
> 2) packets are actually read by OpenSIPS (run with log_level 4 to see if
> you get any kind of logs).
> 
> If the packets were put on the socket, but OpenSIPS does not read them
> -> you should see the IN queue size higher than 0.
> 
> Regards,
> 
> Bogdan-Andrei Iancu
> OpenSIPS Founder and Developer
> http://www.opensips-solutions.com
> 
> On 07.12.2016 22:43, Robert Dyck wrote:
> > Actually when I was testing I entered the listen parameters on the command
> > line. I have now added them to the configuration file. The result is the
> > same. The UA keeps sending the REGISTER request but there is no response
> > from opensips. A UA on IPV4 can register on port 5062.
> > 
> > The configuration file I am using was taken from the rtpproxy modules
> > examples. It was out of date so I had to add the UDP protocol and also
> > change each instance of "break" to "exit".
> > 
> > [root at slim src]# opensips -V
> > version: opensips 2.2.2 (x86_64/linux)
> > flags: STATS: On, DISABLE_NAGLE, USE_MCAST, SHM_MMAP, PKG_MALLOC,
> > F_MALLOC,
> > FAST_LOCK-ADAPTIVE_WAIT
> > ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16,
> > MAX_URI_SIZE 1024, BUF_SIZE 65535
> > poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
> > git revision: d250e1c
> > main.c compiled on 15:03:38 Nov 30 2016 with gcc 6.2.1
> > 
> > 
> > [root at slim src]# netstat -ulnp | grep opensips
> > udp        0      0 192.168.1.1:5062        0.0.0.0:*
> > 10036/opensips
> > udp6       0      0 fd00::223:7dff:feb:5062 :::*
> > 10036/opensips
> > 
> > listen=udp:192.168.1.1:5062
> > listen=udp:[fd00::223:7dff:feb8:d2b4]:5062
> > 
> > On December 7, 2016 09:14:53 PM Bogdan-Andrei Iancu wrote:
> >> Hello Robert,
> >> 
> >> Please post the "listen" lines you have in cfg and the output of
> >> "netstat -ulnp | grep opensips" .
> >> 
> >> Best regards,
> >> 
> >> Bogdan-Andrei Iancu
> >> OpenSIPS Founder and Developer
> >> http://www.opensips-solutions.com
> >> 
> >> On 05.12.2016 21:37, Robert Dyck wrote:
> >>> This is a re-send. I apologize if it is a duplicate. I suspect my
> >>> subscription was not enabled.
> >>> 
> >>> ------------------------------------------------------------------------
> >>> --
> >>> ------------
> >>> 
> >>> I have been doing some testing with opensips 2.2.2 using ipv6. I found
> >>> that
> >>> the server will only respond to a request over IPV6 if it is configured
> >>> to
> >>> listen on the default port.
> >>> 
> >>> Wireshark sees a request addressed to the server but there is no reply.
> >>> 
> >>> Running opensips in the foreground show no activity associated with a
> >>> request.
> >>> 
> >>> Netstat however shows the listening port. ( UDP 5062 )
> >>> 
> >>> Tried with global address and ULA.
> >>> 
> >>> IPv4 works with non-default port.
> >>> 
> >>> _______________________________________________
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