[OpenSIPS-Users] How to overcome SIP ALG on Wi-Fi routers

[Bogdan-Andrei Iancu]

The TCP/IP stack of your server may decide to drop an UDP packet if it 
cannot re-assemble it correctly (like not all the IP fragments were 
received).
In such a case, you see the IP packets (carrying the fragments) on 
network level, but they are never delivered at application level.

Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com

On 17.05.2016 16:05, Nabeel wrote:
>
>     The next question - is this INVITE reaching your opensips script ?
>     to be sure that the OS delivers the UDP packet to the opensips
>     application.
>
>
> I don't have any firewall on my server. Why would the UDP packet get 
> blocked between entering the server and reaching opensips script? The 
> opensips server is running without errors. Other calls work fine.

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