[OpenSIPS-Users] Nat_keepalive help

[Miha]

Ali tnx.

Opensips is on public ip, uac's are behind nat.

I tried to use info, options but stikal the same error:(

What abou that opensips sends udp packets, so that i would
not have to enable this on uac?

We have One softswitch and there is no problem with expired
nat session and arso does not send info/notify/options, i
guess it is sending some udp packets.

Tnx
Miha

On Thu, 12 Dec 2013 11:22:05 -0500
 Ali Pey <alipey at gmail.com> wrote:
> BTW. the error you are getting is probably for the fact
> that your client
> doesn't like the Notify pinging. Change it to Options
> message and it will
> work.
> 
> Regards,
> Ali Pey
> 
> 
> 
> On Thu, Dec 12, 2013 at 11:19 AM, Ali Pey
> <alipey at gmail.com> wrote:
> 
> > Hello Miha,
> >
> > The best way to handle nat keep alive is from your sip
> clients. They
> > usually offer a variety of option and the most
> efficient one is the udp
> > pinging, in which it keeps sending opensips a udp
> packet with 4 zeros in it
> > to keep the nat binding open. That would work perfectly
> if you have static
> > nat binding on the opensips server which means doing
> port forwarding on the
> > firewall the opensips sits behind.
> >
> > You can also enable options pinging on your client as
> well and that will
> > keep nats open on both side as opensips will respond
> with 200 OK.
> >
> > Enabling nat keep alive from opensips is more expensive
> in terms of
> > resources but that is also a possible way to do.
> >
> > Regards,
> > Ali Pey
> >
> >
> >
> > On Thu, Dec 12, 2013 at 7:16 AM, Miha <miha at softnet.si>
> wrote:
> >
> >>  HI,
> >>
> >> I need a little help with nat. UAC register's ok and
> it is reachable but
> >> after a while it become unreachable due to nat issue.
> If I use
> >> nat_keepalive on uac deivce everything is ok, but I
> would like that this is
> >> handled by opensips.
> >>
> >> I tried to use  nat_keepalive but getting all the time
> this:
> >>
> >>  54.820695 opensips -> uac_public_ip SIP 308 Request:
> NOTIFY
> >> sip:uac_public_ip:13401 |
> >>  54.829847 uac_public_ip -> opensips SIP 297 Status:
> *481 Call
> >> Leg/Transaction Does Not Exis*t |
> >>
> >> What is the best way to implement this?
> >>
> >>
> >>
> >> modparam("registrar", "received_avp",
> "$avp(received_avp)")
> >> modparam("registrar", "tcp_persistent_flag", 10)
> >> modparam("nathelper", "received_avp",
> "$avp(received_avp)")
> >> modparam("nathelper", "natping_interval", 10)
> >> modparam("nathelper", "ping_nated_only", 1)
> >>
> >>
> >>               if (nat_uac_test("18")) {
> >>                         xlog("fixing nat");
> >>                          if (method=="REGISTER") {
> >>                                 nat_keepalive();
> >>                                  fix_nated_register();
> >>
> >>                         } else {
> >>                                 fix_nated_contact();
> >>                         }
> >>                 force_rport();
> >>                 }
> >>
> >> tnx!
> >>
> >> miha
> >>
> >>
> >>
> >> _______________________________________________
> >> Users mailing list
> >> Users at lists.opensips.org
> >>
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
> >>
> >>
> >