[SR-Users] Need help in routing configuration

[Klaus Darilion]

For example:

Asterisk: sip.conf (depends on wether you use Asterisk TCP or UDP):

udpbindaddr=10.98.6.5:4444
tcpenable=yes
tcpbindaddr=10.98.6.5:4444


Kamailio:
listen=tcp:10.98.6.5:5060
listen=tcp:10.98.6.5:....


Asterisk >1.6 supports TCP, so maybe you do not even need Kamailio.

If you want to sniff the SIP communication between Asterisk and Kamailio 
you have to sniff on the loopback device, e.g.:
   tcpdump -i lo port 5060
   ngrep -d lo port 5060

you can also sniff on all interfaces, using "any" interface.

regards
Klaus


Am 20.05.2010 15:25, schrieb Nelson Pereira:
> Ok, I found out that the firewall was not setup to allow connection...
>
> So can someone explain to me how I need to setup asterisk and Kamailio so that they both use the same interface eth0?
>
> 10.98.6.5 is Asterisk
> 10.98.6.5 is Kamailio
> 10.98.118.20 is the UM
>
> So basically, the connection would look like this:
>
> Asterisk -UDP->  Kamailio -TCP->  UM
>
>
> So how can I setup all this this way?
>
> Nelson Pereira
>
> -----Original Message-----
> From: Klaus Darilion [mailto:klaus.mailinglists at pernau.at]
> Sent: Thursday, May 20, 2010 7:51 AM
> To: Nelson Pereira
> Cc: sr-users at lists.sip-router.org
> Subject: Re: [SR-Users] Need help in routing configuration
>
> I do not know if having 2 identical routes via 2 different infterfaces
> can cause any problems. Just for testing I would remove one of the
> redundant routes just to find out if causes a problem.
>
> Further, for testing remove all iptables: iptables -F
>
> Further, Kamailio logs that it is trying to establish a TCP connection
> but it fails. Thus, use tcpdump/wireshark to verify if Kamailio really
> tries to create a TCP connection. Use 2 tcpdump processes and capture
> eth0 and eth1 separately. Then analyze the tcpdump and watch for the SYN
> messages. Analyze on which interface they are sent. Analyze the source
> IP address of the SYN packages. Are there any TCP responses from the
> other party?
>
> Try to start with a simple setup - e.g. only 1 IP address, and only if
> it works then make the setup more complex (multiple IP addresses,
> multiple routes, ...)
>
> regards
> klaus