<div dir="ltr">Yeah, you're correct but i can believe there can be some ACL or whitelisting implemented on kernel module level. Keep in mind the USB modem comm is just a bunch of serial consoles and you mitigate the problem of DMA(direct memory access) if you just choose to relay that class. </div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, May 13, 2015 at 4:19 PM, Sergey Safarov <span dir="ltr"><<a href="mailto:s.safarov@gmail.com" target="_blank">s.safarov@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Passing USB messages via USBIP equal inserting dongle to FS host. It is not solves security questions.<span class="HOEnZb"><font color="#888888"><div><br></div><div>Sergey</div></font></span></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Wed, May 13, 2015 at 4:02 PM, Daniel Ivanov <span dir="ltr"><<a href="mailto:sertys@gmail.com" target="_blank">sertys@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Yeah, that is what we do basically. Get our modems hooked to a raspberry pi with freeswitch and route the calls&sms via sip to the endpoints.<div><br></div><div>Giving it a little thought though gave me that : <a href="http://usbip.sourceforge.net/" target="_blank">http://usbip.sourceforge.net/</a></div><div><br></div><div>It's a simple encapsulation of usb messaging over IP which is transferred to a kernel module acting as a virtual host controller. Haven't tested it, but be sure to post some feedback if you give it a spin.</div></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, May 13, 2015 at 2:32 PM, Giovanni Maruzzelli <span dir="ltr"><<a href="mailto:gmaruzz@gmail.com" target="_blank">gmaruzz@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">A separate instance of Freeswitch on second machine, and two machines talk each other via sip.<br>
-giovanni</p>
<p dir="ltr">sent from my mobile,<br>
Giovanni Maruzzelli<br>
cell: +39 347 266 56 18</p>
<div class="gmail_quote"><div><div>On May 13, 2015 1:22 PM, "Mietek Sześniak" <<a href="mailto:mietekszczesniak2503@gmail.com" target="_blank">mietekszczesniak2503@gmail.com</a>> wrote:<br type="attribution"></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div><div dir="ltr"><div>I'd like to use FreeSWITCH as my private bridge between SIP and GSM.<br></div><div><br></div><div>However, I consider USB modems to be a security threat, since they frequently have their own storage (can work as pendrives), have a black-box baseband and are hardly ever patched.</div><div><br></div><div>For that reason, I'd like to connect my USB modem to a separate machine (maybe an OpenWRT router) and connect that machine to my main FreeSWITCH machine over Ethernet. </div><div><br></div><div>How would I set that up? Can mod_gsmopen be run alone, or would I have to install a separate instance of FreeSWITCH on that second machine?</div><div><br></div><div>Thanks!</div><div><br></div><div>PS. I'm still trying to wrap my head around FreeSWITCH, so please be forgiving. :)</div></div>
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