Hi to all I have the following scenario (Kamailio 5 and rtpproxy) *) Bob on a wifi network calls Alice *) During the call, Bob losts his wifi network (and so also changes his IP address) *) The RTP flow is interrupted
With asterisk, disabling “Strict RTP” option, the flow does not interrupts: Asterisk detect the new IP address and sends the audio packets to the new IP address.
It is possible to setup this behavior also with Kamailio?
-- Emanuele Gambaro --- email: emanuele.gambaro@pynlab.com skype: sarbyn_work OpenPGP Key: https://goo.gl/fdeVnI
On Tue, Jun 27, 2017 at 11:03:00AM +0200, Emanuele Gambaro wrote:
Hi to all I have the following scenario (Kamailio 5 and rtpproxy) *) Bob on a wifi network calls Alice *) During the call, Bob losts his wifi network (and so also changes his IP address) *) The RTP flow is interrupted
With asterisk, disabling “Strict RTP” option, the flow does not interrupts: Asterisk detect the new IP address and sends the audio packets to the new IP address.
It is possible to setup this behavior also with Kamailio?
Don't know about rtpproxy, but rtpengine has the following option that implements your use case:
"media handover
Similar to the strict source option, but instead of dropping packets when the source address or port don't match, the endpoint address will be re-learned and moved to the new address. This allows endpoint addresses to change on the fly without going through signalling again. Note that this opens a security hole and potentially allows RTP streams to be hijacked, either partly or in whole."
Thank you for your prompt reply! The security hole about RTP injection is not a problem because we use in our solution encrypted voice protocols, so if an attacker tries to inject malicious RTP data would be discarded by the encrypted protocol
-- Emanuele Gambaro --- email: emanuele.gambaro@pynlab.com skype: sarbyn_work OpenPGP Key: https://goo.gl/fdeVnI
Il giorno 27 giu 2017, alle ore 11:15, Daniel Tryba d.tryba@pocos.nl ha scritto:
On Tue, Jun 27, 2017 at 11:03:00AM +0200, Emanuele Gambaro wrote:
Hi to all I have the following scenario (Kamailio 5 and rtpproxy) *) Bob on a wifi network calls Alice *) During the call, Bob losts his wifi network (and so also changes his IP address) *) The RTP flow is interrupted
With asterisk, disabling “Strict RTP” option, the flow does not interrupts: Asterisk detect the new IP address and sends the audio packets to the new IP address.
It is possible to setup this behavior also with Kamailio?
Don't know about rtpproxy, but rtpengine has the following option that implements your use case:
"media handover
Similar to the strict source option, but instead of dropping packets when the source address or port don't match, the endpoint address will be re-learned and moved to the new address. This allows endpoint addresses to change on the fly without going through signalling again. Note that this opens a security hole and potentially allows RTP streams to be hijacked, either partly or in whole."
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Emanuele Gambaro