Hello!

Maybe it will help you:

https://kamailio.org/docs/modules/devel/modules/rtpproxy.html#rtpproxy.f.rtpproxy_ofrer

i, e - these flags specify the direction of the SIP message. These flags only make sense when rtpproxy is running in bridge mode. 'i' means internal network (LAN), 'e' means external network (WAN). 'i' corresponds to rtpproxy's first interface, 'e' corresponds to rtpproxy's second interface. You always have to specify two flags to define the incoming network and the outgoing network. For example, 'ie' should be used for SIP message received from the local interface and sent out on the external interface, and 'ei' vice versa. Other options are 'ii' and 'ee'. So, for example if a SIP requests is processed with 'ie' flags, the corresponding response must be processed with 'ie' flags.

пн, 1 апр. 2019 г. в 16:59, Lauritz <voip@lauritz-holtmann.de>:

Hello,

I am trying to implement the following network setup using Kamailio and RTPProxy, but was not able to find any recent documentation or blog posts with hints:

local_net1                           :          local_net2
10.250.10.*                          :          10.250.11.*
                                     :
(1)                            (2)   :
+-------------+               +--------------+                +--------------+
!             !.11        .12 ! Proxy        !.21             ! Debian Host !.22
! Starface    !---------------! + Kamailio   !<<--------------! + Linphone   !.23
!             !               ! + RTPProxy   !                !              !
+-------------+               +--------------+                +--------------+
                          eth0       :      eth1
                                     :
                                     :

As you can see, the proxy has two interfaces and its purpose is to forward traffic from the client's network to the Starface's network.

Has anyone experience to share or got any other hints where to start?
Thank you very much for your help :)

Kind regards,
Lauritz
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