24 Jan
2011
24 Jan
'11
10:42 a.m.
Hi
I have installed Kamailio with MediaProxy and asterisk on Amazon Server..
While kamailio/MediaProxy and Asterisk both running on different amazon's
instance.
Kamailio : 1.5.0-notls
MediaProxy : 2.3.8
Asterisk : 1.6.2.6
Firewall port is opened for mediaproxy from 10000-20000 (UDP), 5060 (UDP)
etc on both amazon machine..
while I tried to play an audio... it plays sound file but unable to found
audio on device.
when I put tcpdump on asterisk machine it gives following error...
# tcpdump -i eth0 udp portrange 10000-20000 -w test1.pcap
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
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
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
Any Idea..!!
--
Regards,
Chandrakant Solanki
25 Jan
25 Jan
4:55 p.m.
Hello,
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.
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.
Cheers,
Daniel
On 1/24/11 12:42 AM, Chandrakant Solanki wrote:
Hi
I have installed Kamailio with MediaProxy and asterisk on Amazon Server..
While kamailio/MediaProxy and Asterisk both running on different
amazon's instance.
Kamailio : 1.5.0-notls
MediaProxy : 2.3.8
Asterisk : 1.6.2.6
Firewall port is opened for mediaproxy from 10000-20000 (UDP), 5060
(UDP) etc on both amazon machine..
while I tried to play an audio... it plays sound file but unable to
found audio on device.
when I put tcpdump on asterisk machine it gives following error...
# tcpdump -i eth0 udp portrange 10000-20000 -w test1.pcap
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
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
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
Any Idea..!!
--
Regards,
Chandrakant Solanki
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
--
Daniel-Constantin Mierla
http://www.asipto.com
26 Jan
26 Jan
10:57 a.m.
hi all,
Which is the kernel version of the amazon instance? There was some minnor
net issues with incorrect checksum that affected 2.6.18. You can disable the
checksum with ethtool
ethtool -K [intercace] tx off
Try above command and check whether the debug message disappear.
Hope it helps,
Samuel.
On 24 January 2011 09:42, Chandrakant Solanki <solanki.chandrakant(a)gmail.com
wrote:
Hi
I have installed Kamailio with MediaProxy and asterisk on Amazon Server..
While kamailio/MediaProxy and Asterisk both running on different amazon's
instance.
Kamailio : 1.5.0-notls
MediaProxy : 2.3.8
Asterisk : 1.6.2.6
Firewall port is opened for mediaproxy from 10000-20000 (UDP), 5060 (UDP)
etc on both amazon machine..
while I tried to play an audio... it plays sound file but unable to found
audio on device.
when I put tcpdump on asterisk machine it gives following error...
# tcpdump -i eth0 udp portrange 10000-20000 -w test1.pcap
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
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
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
Any Idea..!!
--
Regards,
Chandrakant Solanki
_______________________________________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
sr-users(a)lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
5049
days inactive
5051
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2 comments
3 participants
participants (3)
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Chandrakant Solanki -
Daniel-Constantin Mierla -
samuel