28 Oct
2019
28 Oct
'19
10:20 a.m.
Hello,
network sniffers (such as wireshark, ngrep, tcpdump, sngrep, ...)
capture the traffic at network interface layer (well, using some kernel
hooks), before getting to application layer (even before the firewall)
and I expect is the same for heplify. They do not "receive" the packets
like an application that does "listen", just take a copy of the traffic
via those kernel hooks and then the packets are sent to the application
layer. In other words, heplify doesn't received the sip traffic and then
resends it locally, just gets a copy of the traffic.
Cheers,
Daniel
On 27.10.19 09:16, Igor Olhovskiy wrote:
So, at the end it would be like
Heplify captures traffic and sending it to localhost, where Kamailio
listens.
Thanks, will give it a try.
Regards, Igor
On 26 Oct 2019, 21:21 +0200, Federico Cabiddu
<federico.cabiddu(a)gmail.com>om>, wrote:
--
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio Advanced Training, Oct 21-23, 2019, Berlin, Germany -- https://asipto.com/u/kat
Just use heplify or captagent for this:
https://github.com/sipcapture/heplify
https://github.com/sipcapture/captagent
You can run them on the same machines where you're running your sip
services and send the captured traffic to a homer instance.
Cheers,
Federico
On Sat, 26 Oct 2019, 20:40 Igor Olhovskiy, <igorolhovskiy(a)gmail.com
<mailto:igorolhovskiy@gmail.com>> wrote:
I'm trying to avoid SIP packet touching at all. Plus, I can't
move third-party soft to other port/interface or so.
Idea is I don't want for Kamailio to be a proxy, but a sip packet
analyzer for mirrored port, but on same machine.
On Oct 26 2019, at 6:40 pm, David Villasmil
<david.villasmil.work(a)gmail.com
<mailto:david.villasmil.work@gmail.com>> wrote:
Why not just receiving with kamailio and transparently
proxying to the pbx after capturing? I.e.: kamailio in the middle
On Sat, 26 Oct 2019 at 14:46, Igor Olhovskiy
<igorolhovskiy(a)gmail.com <mailto:igorolhovskiy@gmail.com>> wrote:
Hi!
I'm trying to get Kamailio working as a traffic capture
on a same machine with other PBX software installed.
Actually, traffic is mirrored with
iptables -A PREROUTING -t mangle -i eth0 -p udp --dport
5060 -j TEE --gateway 127.0.0.2
<https://link.getmailspring.com/link/AB5F9D36-533D-4A52-ADE3-FB76B813163C@getmailspring.com/0?redirect=127.0.0.2&recipient=c3ItdXNlcnNAbGlzdHMua2FtYWlsaW8ub3Jn>
iptables -t nat -A PREROUTING -d 127.0.0.2 -p udp --dport
5060 -j DNAT --to 127.0.0.1:5062
<https://link.getmailspring.com/link/AB5F9D36-533D-4A52-ADE3-FB76B813163C@getmailspring.com/1?redirect=127.0.0.1%3A5062&recipient=c3ItdXNlcnNAbGlzdHMua2FtYWlsaW8ub3Jn>
Kamailio request route is super simple
request_route {
xlog("L_ALERT", "[SIP-PACKET] Got packet [F=$fu R=$ru
D=$du M=$rm IP=($si:$sp $Ri:$Rp) ID=$ci]\n");
drop;
}
I was trying to get Kamailio just listen on interface
127.0.0.1:5062 <http://127.0.0.1:5062>, but no luck
listen=udp:127.0.0.1:5062 <http://127.0.0.1:5062>
Next was to use sipcapture module with following parameters
loadmodule "sipcapture.so"
modparam("sipcapture", "db_url",
"text:///tmp/")
modparam("sipcapture", "raw_socket_listen",
"127.0.0.1:5060-5062")
modparam("sipcapture", "raw_interface", "lo")
modparam("sipcapture", "promiscious_on", 1)
Also no luck. Means Kamailio can't see packets, but I see
em with wireshark on lo interface.
What is best way to get it working? Or I'm missing something?
Thanks!
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Regards,
David Villasmil
email: david.villasmil.work(a)gmail.com
<https://link.getmailspring.com/link/440604DA-8F73-4D71-9038-78658920F906@getmailspring.com/0?redirect=mailto%3Adavid.villasmil.work%40gmail.com&recipient=c3ItdXNlcnNAbGlzdHMua2FtYWlsaW8ub3Jn>
phone: +34669448337
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