[SR-Users] Nat_traversal module not sending keepalives

[Charles Chance]

Hi,

Many thanks for your replies. Turns out we were calling t_newtran()
elsewhere in the config before handling the register, and I guess the
callback was being attached to the wrong transaction. Now it's removed, all
is working fine :)

Best,

Charles



On 9 September 2013 19:09, Carsten Bock <carsten at ng-voice.com> wrote:

> Hi,
>
> you find a working example actually in the examples/pcscf/ Folder of
> Kamailio.
> Since we don't have a full compatible usrloc-API for IMS (yet), i used
> nat_traversal as replacement for nathelper; as it's not relying on the
> usrloc-database.
>
> In the config we have:
> # ----- nat_traversal params -----
> # If another keepalive is wanted, this is the place
> modparam("nat_traversal", "keepalive_interval", 10)
> # If another method than NOTIFY is wanted:
> modparam("nat_traversal", "keepalive_method", "OPTIONS")
> # From?
> modparam("nat_traversal", "keepalive_from", "sip:keepalive at HOSTNAME")
> # Where we store information about keep-alives:
> modparam("nat_traversal", "keepalive_state_file",
> "/var/run/kamailio/keepalive_state")
>
> With these parameters, we just call "nat_keepalive();" before
> forwarding the request to the IMS-Core.  This works for us... (with
> latest 4.0 or trunk versions, i haven't tried it before).
>
> Kind regards,
> Carsten
>
> 2013/9/9 Daniel-Constantin Mierla <miconda at gmail.com>:
> > Hello,
> >
> > not using this module, however, after you start, can you see a dedicated
> > timer module 'NT' if you do kamctl ps?
> >
> > Cheers,
> > Daniel
> >
> >
> > On Fri, Sep 6, 2013 at 11:00 AM, Charles Chance
> > <charles.chance at sipcentric.com> wrote:
> >>
> >> Hi all,
> >>
> >> Currently evaluating the nat_traversal module in some tests, and trying
> to
> >> configure keepalives for registers. We currently use nathelper, but due
> to
> >> the distributed nature of our setup, nat_traversal seems more
> appropriate
> >> for the keepalive functionality (nathelper is sending keepalives from
> every
> >> node).
> >>
> >> I am calling nat_keepalive() before save(), but no keepalives are being
> >> sent. The documentation suggests that is all there is to it, but maybe
> I'm
> >> missing something. There are no errors in the log that I can see.
> >>
> >> Any ideas?
> >>
> >> Many thanks,
> >>
> >> Charles
> >>
> >>
> >> www.sipcentric.com
> >>
> >> Follow us on twitter @sipcentric
> >>
> >> Sipcentric Ltd. Company registered in England & Wales no. 7365592.
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> >>
> >
> >
> >
> > --
> > Daniel-Constantin Mierla
> >   http://www.asipto.com
> >
> > _______________________________________________
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> >
>
>
>
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