[Kamailio-Users] Transparent bridge mode

[Vikram Ragukumar]

Daniel,

Thank you for your reply. Let me briefly explain what i am trying to 
achieve over here.

 _____  eth0  _____    eth1   ______
|_____|------|_____|--------|______|    
Internet        Server1            Server2
                    2 NIC's             1 NIC
                                            (Public IP)

I show above a sketch of the desired setup.

Server1 - Runs Kamailio and rtpproxy. It has 2 NIC's installed.
Server2 - Runs Asterisk. It must be assigned a Public IP.

I need to use rtpproxy to intercept data being sent to Server 2, process 
them and let them continue along their original path. Are there any 
references you can point me to, that show how to use rtpproxy to achieve 
this bridging? Does the connection between eth1 of Server1 and eth0 of 
Server2 have to made using a crossover cable ?

Thank you for all your help.
Regards,
Vikram.








Daniel-Constantin Mierla wrote:
> Hello,
>
> On 12/18/09 12:38 AM, Vikram Ragukumar wrote:
>> Hello All,
>>
>> I am trying to setup a test scenario, where i have Kamailio and 
>> rtpproxy running on one CentOS box (Server1) and i have Asterisk 
>> running on another CentOS box (Server2). Server1 has 2 NIC's eth0 and 
>> eth1 that are both assigned Public IP's. There is a transparent 
>> bridge br0 connecting eth0 and eth1 which also has its own Public IP. 
>> Finally eth0 on Server2 also has a Public IP.
>>
>> Server2 must be assigned a Public IP.
>>
>> My goal is to modify rtpproxy so that i can intercept packets 
>> traveling to Server2, process them and let them resume along their 
>> original path.
>> I would like to know if there is another way of setting this up so 
>> that i dont use as many Public IP's ?
>> Do any of you see a problem with this setup, things that may not work 
>> eventually, or any other concerns ?
>>
> rtpproxy can do bridging of two interfaces -- see the example cfg:
>
> modules/nathelper/examples/alg.cfg
>
> Cheers,
> Daniel
>