[SR-Users] Cflag is not getting updated.

[Krishna Kurapati]

Looks like sipping does not work with TCP transport. I looked at the code it
expects the
client waits on UDP port.

code snippet from nathelper.c

              if (curi.proto != PROTO_UDP && curi.proto != PROTO_NONE)
                        continue;

I would like it to use TCP transport and send the packet to the client on
the same socket
that the client has connected to server with.

Any suggestions on how to do this?

Thanks
Krish Kura

On Sat, Oct 1, 2011 at 6:21 PM, Krishna Kurapati <kkurapat at gmail.com> wrote:

> Hi,
>
> I am  hitting bit of a wall here.
>
> - I am setting bflags for NAT, and SIPPING before save("location")
> however,
> when I do "kamctl ul show", the Cflag is 0.
>
> I also checked see if the bflags are set or not in the register routine -
> they are being set.
>
> What am I missing?
>
> snippets of the config files.
>
> #!define FLB_NATB 6
> #!define FLB_NATSIPPING 7
> modparam("nathelper", "natping_interval", 30)
> modparam("nathelper", "ping_nated_only", 1)
> modparam("nathelper", "sipping_bflag", FLB_NATSIPPING)
> modparam("nathelper", "sipping_method", "INFO")
> modparam("nathelper", "sipping_from", "sip:pinger at 50.62.1.7")
>
> # params needed for NAT traversal in other modules
> modparam("nathelper|registrar|usrloc", "received_avp", "$avp(RECEIVED)")
> modparam("usrloc", "nat_bflag", FLB_NATB)
>
> # Caller NAT detection route
> route[NAT] {
> #!ifdef WITH_NAT
>         force_rport();
>         if (nat_uac_test("19")) {
>                 if (method=="REGISTER") {
>                         fix_nated_register();
>                 } else {
>                         fix_nated_contact();
>                 }
>                 setflag(FLT_NATS);
>                 setbflag(FLB_NATB);
>         }
> #!endif
>         return;
> }
>
> # Handle SIP registrations
> route[REGISTRAR] {
>         if (is_method("REGISTER"))
>         {
>                 xlog("L_ALERT", "REGISTER: From $fU, $fd  To $tU, $td");
>                 if (isflagset(FLT_NATS) || isbflagset(FLB_NATB))
>                 {
>                         setbflag(FLB_NATB);
>                         # uncomment next line to do SIP NAT pinging
>                         setbflag(FLB_NATSIPPING);
>                 }
>                 # 7/28/11 - make sure only one contact location is active
>                 # at any given time
>                 # unregister("location", "$rU");
>                 if (isbflagset(FLB_NATB))
>                 {
>                         xlog("L_ALERT", "REGISTRAR: For $fU, $fd  FLB_NATB
> set");
>                 }
>
>                 if (isbflagset(FLB_NATSIPPING))
>                 {
>                         xlog("L_ALERT", "REGISTRAR: For $fU, $fd
>  FLB_NATSIPPING set");
>                 }
>
>                 if (!save("location"))
>                 {
>                         xlog("L_ALERT", "REGISTRAR: From $fU, $fd  Location
> could not be saved");
>                         sl_reply_error();
>                 }
>
>                 exit;
>         }
> }
>
>
> The debug log snippets
> ==================
> Oct  1 15:58:30 siptest /usr/sbin/kamailio[19515]: ALERT: <script>:
> REGISTER: From p_krishna_test_com, 50.62.1.7  To p_krishna_test_com,
> 50.62.1.7
> Oct  1 15:58:30 siptest /usr/sbin/kamailio[19515]: ALERT: <script>:
> REGISTRAR: For p_krishna_test_com, 50.62.1.7  FLB_NATB set
> Oct  1 15:58:30 siptest /usr/sbin/kamailio[19515]: ALERT: <script>:
> REGISTRAR: For p_krishna_test_com, 50.62.1.7  FLB_NATSIPPING set
> Oct  1 15:58:30 siptest /usr/sbin/kamailio[19515]: DEBUG: sl [sl.c:278]:
> reply in stateless mode (sl)
>
> Output of kamctl command
> ====================
> $ sudo kamctl ul show
> Domain:: location table=512 records=1 max_slot=1
> AOR:: p_krishna_test_com
> Contact:: sip:p_krishna_test_com at 75.62.17.45:50073;transport=tcp;ob Q=
>  Expires:: 287
> Callid:: ad2d3a7bf39a4345861db1661576a7f3
> Cseq:: 54856
>  User-agent:: QliqDesktop 1.0.0 (pjproject 1.10.0/win32)
> State:: CS_NEW
>  Flags:: 0
> Cflag:: 0
>  <================= Cflag is not being set.
>  Socket:: tcp:10.1.0.6:5060
> Methods:: 8143
>
> Thanks
> Krish Kura
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.sip-router.org/pipermail/sr-users/attachments/20111002/8e0218d0/attachment.htm>