Re: [SR-Users] Kamailio 3.0 cann't access the RTPProxy

Hello,

On 8/12/10 8:34 PM, KevinJin wrote:

Hello,

---

Date: Thu, 12 Aug 2010 18:46:19 +0200 From: miconda@gmail.com To: kevin.jzh@hotmail.com CC: sr-users@lists.sip-router.org Subject: Re: [SR-Users] Kamailio 3.0 cann't access the RTPProxy

Hello,

On 8/12/10 4:47 PM, KevinJin wrote:

Hi Daniel,

What does the log below means? Does it mean nathelper has issue to
send the request to RTP proxy first or nathelper doesn't receive a
response after sending a request to the rtp proxy?
0(27429) ERROR: nathelper [nathelper.c:2457]: can't send command
to a RTP proxy

this error is printed when write to socket fails. Do you have any firewall running on the system? Is the user under which kamailio runs allowed to write to sockets?

There's no firewall on the system, and I run the kamailio as root,
root 26310 1 0 02:24:19 ? 0:00
/usr/local/kamailio-3.0.2/sbin/kamailio -f
/usr/local/kamailio-3.0.2/etc/kamail

You can edit module_k/nathelper/nathelper.c and replace the line
2457 with:

LM_ERR("can't send command to a RTP proxy (%s/%d)\n",
strerror(errno), errno);

Recompile and reinstall. Hopefully will get more hints about what
happens.

Here is the error message after the change: 2(26312) ERROR: nathelper [nathelper.c:2457]: can't send command to a RTP proxy(Invalid argument/22) 2(26312) ERROR: nathelper [nathelper.c:2492]: proxy udp:210.13.124.15:7722 does not respond, disable it 2(26312) ERROR: nathelper [nathelper.c:3144]: no available proxies what could be the cause?

hmm, invalid argurment ... try with this line:

LM_ERR("can't send command to a RTP proxy (%s/%d) [sock %d (%d), vcnt %d]\n", strerror(errno), errno, rtpp_socks[node->idx], node->idx, vcnt);

maybe will give some hints about which value is invalid.

Can you try as well with an unix file socket:

modparam("nathelper", "rtpproxy_sock", "unix:/tmp/rtpproxy.sock")

then start rtpproxy with -s unix:/tmp/rtpproxy.sock

I have no solaris (sparc) to try myself...

Cheers, Daniel

Test env: UA1 (Behind NAT) --------> Kamailio & RTPproxy (Public IP) --------->UA2 (Public IP)

Thanks, Kevin Cheers, Daniel

0(27429) ERROR: nathelper [nathelper.c:2492]: proxy
<udp:210.13.124.15:7722> does not respond, disable it

There's no problem for the resource(CPU, mem etc.) on the server,
the load is very low.

Thanks in advance!
----------
0(27429) DEBUG: nathelper [nhelpr_funcs.c:148]: type
<application/sdp> found valid
0(27429) ERROR: nathelper [nathelper.c:3144]: no available proxies
0(27429) ERROR: nathelper [nathelper.c:2627]: no available proxies
0(27429) DEBUG: nathelper [nhelpr_funcs.c:148]: type
<application/sdp> found valid
0(27429) INFO: nathelper [nathelper.c:2369]: rtp proxy
<udp:210.13.124.15:7722> found, support for it re-enabled
0(27429) DEBUG: nathelper [nathelper.c:3196]: proxy reply: 42040
210.13.124.14
0(27429) DEBUG: nathelper [nhelpr_funcs.c:148]: type
<application/sdp> found valid
0(27429) ERROR: nathelper [nathelper.c:2457]: can't send command
to a RTP proxy
0(27429) ERROR: nathelper [nathelper.c:2492]: proxy
<udp:210.13.124.15:7722> does not respond, disable it
0(27429) ERROR: nathelper [nathelper.c:3144]: no available proxies
0(27429) ERROR: nathelper [nathelper.c:2627]: no available proxies

Thanks,
Kevin
------------------------------------------------------------------------


_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users@lists.sip-router.org <mailto:sr-users@lists.sip-router.org>
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users

-- Daniel-Constantin Mierla http://www.asipto.com/