Looks like sipping does not work with TCP transport. I looked at the code it expects the<div>client waits on UDP port.</div><div><br></div><div>code snippet from nathelper.c</div><div><br></div><div><div> if (curi.proto != PROTO_UDP && curi.proto != PROTO_NONE)</div>
<div> continue;</div></div><div><br></div><div>I would like it to use TCP transport and send the packet to the client on the same socket</div><div>that the client has connected to server with. </div>
<div><br></div><div>Any suggestions on how to do this? </div><div><br></div><div>Thanks</div><div>Krish Kura</div><div><br><div class="gmail_quote">On Sat, Oct 1, 2011 at 6:21 PM, Krishna Kurapati <span dir="ltr"><<a href="mailto:kkurapat@gmail.com">kkurapat@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Hi,<div><br></div><div>I am hitting bit of a wall here. </div><div><br></div><div>- I am setting bflags for NAT, and SIPPING before save("location") however, </div>
<div>when I do "kamctl ul show", the Cflag is 0. </div>
<div><br></div><div>I also checked see if the bflags are set or not in the register routine - they are being set. </div><div><br></div><div>What am I missing?</div><div><br></div><div>snippets of the config files.</div><div>
<div><br></div><div>#!define FLB_NATB 6</div><div>#!define FLB_NATSIPPING 7</div></div><div>modparam("nathelper", "natping_interval", 30)</div><div>modparam("nathelper", "ping_nated_only", 1)</div>
<div>modparam("nathelper", "sipping_bflag", FLB_NATSIPPING)</div><div>modparam("nathelper", "sipping_method", "INFO")</div><div>modparam("nathelper", "sipping_from", "<a href="mailto:sip%3Apinger@50.62.1.7" target="_blank">sip:pinger@50.62.1.7</a>")</div>
<div><br></div><div># params needed for NAT traversal in other modules</div><div>modparam("nathelper|registrar|usrloc", "received_avp", "$avp(RECEIVED)")</div><div>modparam("usrloc", "nat_bflag", FLB_NATB)</div>
<div><br></div><div><div># Caller NAT detection route</div><div>route[NAT] {</div><div>#!ifdef WITH_NAT</div><div> force_rport();</div><div> if (nat_uac_test("19")) {</div><div> if (method=="REGISTER") {</div>
<div> fix_nated_register();</div><div> } else {</div><div> fix_nated_contact();</div><div> }</div><div> setflag(FLT_NATS);</div><div>
setbflag(FLB_NATB);</div><div> }</div><div>#!endif</div><div> return;</div><div>}</div></div><div><br></div><div><div># Handle SIP registrations</div><div>route[REGISTRAR] {</div><div> if (is_method("REGISTER"))</div>
<div> {</div><div> xlog("L_ALERT", "REGISTER: From $fU, $fd To $tU, $td");</div><div> if (isflagset(FLT_NATS) || isbflagset(FLB_NATB))</div><div> {</div>
<div> setbflag(FLB_NATB); </div><div> # uncomment next line to do SIP NAT pinging </div><div> setbflag(FLB_NATSIPPING); </div><div> }</div>
<div> # 7/28/11 - make sure only one contact location is active </div><div> # at any given time</div><div> # unregister("location", "$rU");</div><div> if (isbflagset(FLB_NATB))</div>
<div> {</div></div><div><div> xlog("L_ALERT", "REGISTRAR: For $fU, $fd FLB_NATB set");</div><div> }</div><div><br></div><div> if (isbflagset(FLB_NATSIPPING))</div>
<div> {</div><div> xlog("L_ALERT", "REGISTRAR: For $fU, $fd FLB_NATSIPPING set");</div><div> }</div><div><br></div><div> if (!save("location"))</div>
<div> {</div><div> xlog("L_ALERT", "REGISTRAR: From $fU, $fd Location could not be saved");</div><div> sl_reply_error();</div><div> }</div>
<div><br></div><div> exit;</div><div> }</div></div><div>}</div><div><br></div><div> </div><div>The debug log snippets</div><div>==================</div><div><div>Oct 1 15:58:30 siptest /usr/sbin/kamailio[19515]: ALERT: <script>: REGISTER: From p_krishna_test_com, 50.62.1.7 To p_krishna_test_com, 50.62.1.7</div>
<div>Oct 1 15:58:30 siptest /usr/sbin/kamailio[19515]: ALERT: <script>: REGISTRAR: For p_krishna_test_com, 50.62.1.7 FLB_NATB set</div><div>Oct 1 15:58:30 siptest /usr/sbin/kamailio[19515]: ALERT: <script>: REGISTRAR: For p_krishna_test_com, 50.62.1.7 FLB_NATSIPPING set</div>
<div>Oct 1 15:58:30 siptest /usr/sbin/kamailio[19515]: DEBUG: sl [sl.c:278]: reply in stateless mode (sl)</div></div><div><br></div><div>Output of kamctl command</div><div>====================</div><div><div>$ sudo kamctl ul show</div>
<div>Domain:: location table=512 records=1 max_slot=1</div><div><span style="white-space:pre-wrap"> </span>AOR:: p_krishna_test_com</div><div><span style="white-space:pre-wrap"> </span>Contact:: sip:p_krishna_test_com@75.62.17.45:50073;transport=tcp;ob Q=</div>
<div><span style="white-space:pre-wrap"> </span>Expires:: 287</div><div><span style="white-space:pre-wrap"> </span>Callid:: ad2d3a7bf39a4345861db1661576a7f3</div><div><span style="white-space:pre-wrap"> </span>Cseq:: 54856</div>
<div><span style="white-space:pre-wrap"> </span>User-agent:: QliqDesktop 1.0.0 (pjproject 1.10.0/win32)</div><div><span style="white-space:pre-wrap"> </span>State:: CS_NEW</div><div>
<span style="white-space:pre-wrap"> </span>Flags:: 0</div><div><span style="white-space:pre-wrap"> </span>Cflag:: 0 <================= Cflag is not being set.</div>
<div><span style="white-space:pre-wrap"> </span>Socket:: tcp:<a href="http://10.1.0.6:5060" target="_blank">10.1.0.6:5060</a></div><div><span style="white-space:pre-wrap"> </span>Methods:: 8143</div>
</div><div><br></div><div>Thanks</div><div>Krish Kura</div>
</blockquote></div><br></div>