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Hello,<br>
<br>
if everything is working fine with the audio, then just ignore the
tcpdump warning, since it may capture the packets before the
checksum was actually computed in the system. With some network
cards you'd have to disable hardware checksum to get rid of those
warnings. again, afaik, it is harmless if everything works.<br>
<br>
I recommend using version 3.1 for running kamailio in amazon
instances, it does it far more better than older versions. I was
even running kamailio and asterisk on same ec2 instance, but with
some tricks to record routing. For rtp relaying I was using
rtpproxy.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
On 1/24/11 12:42 AM, Chandrakant Solanki wrote:
<blockquote
cite="mid:AANLkTi=NjMHiHFFfFK6FqJZR-=HO3jLKScTEsx5Rj=Ui@mail.gmail.com"
type="cite">
<div>Hi<br clear="all">
</div>
<div><br>
</div>
<div>I have installed Kamailio with MediaProxy and asterisk on
Amazon Server..</div>
<div>While kamailio/MediaProxy and Asterisk both running on
different amazon's instance.</div>
<div><br>
</div>
<div>Kamailio : 1.5.0-notls</div>
<div>MediaProxy : 2.3.8</div>
<div><br>
</div>
<div>Asterisk : 1.6.2.6</div>
<div><br>
</div>
<div>Firewall port is opened for mediaproxy from 10000-20000
(UDP), 5060 (UDP) etc on both amazon machine..</div>
<div><br>
</div>
<div>while I tried to play an audio... it plays sound file but
unable to found audio on device.</div>
<div><br>
</div>
<div>when I put tcpdump on asterisk machine it gives following
error...</div>
<div><br>
</div>
<div># tcpdump -i eth0 udp portrange 10000-20000 -w test1.pcap</div>
<div><br>
</div>
<div>01:39:52.850279 IP (tos 0xb8, ttl 64, id 59, offset 0, flags
[DF], proto: UDP (17), length: 60)
ip-W.X.Y.Z.compute.internal.15246 > xyz.com.10010: [bad udp
cksum 3cfd!] UDP, length 32<br>
01:39:52.870279 IP (tos 0xb8, ttl 64, id 60, offset 0, flags
[DF], proto: UDP (17), length: 60)
ip-W.X.Y.Z.compute.internal.15246 > xyz.com.10010: [bad udp
cksum 97fe!] UDP, length 32<br>
01:39:52.890281 IP (tos 0xb8, ttl 64, id 61, offset 0, flags
[DF], proto: UDP (17), length: 60)
ip-W.X.Y.Z.compute.internal.15246 > xyz.com.10010: [bad udp
cksum 75c0!] UDP, length 32<br>
</div>
<div><br>
</div>
<div><br>
</div>
<div>Any Idea..!!<br>
</div>
<div><br>
</div>
-- <br>
Regards,<br>
<br>
Chandrakant Solanki<br>
<pre wrap="">
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</pre>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla
<a class="moz-txt-link-freetext" href="http://www.asipto.com">http://www.asipto.com</a></pre>
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