[Freeswitch-users] running mod_gsmopen on a separate system

[Daniel Ivanov]

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.

On Wed, May 13, 2015 at 4:19 PM, Sergey Safarov <s.safarov at gmail.com> wrote:

> Passing USB messages via USBIP equal inserting dongle to FS host. It is
> not solves security questions.
>
> Sergey
>
> On Wed, May 13, 2015 at 4:02 PM, Daniel Ivanov <sertys at gmail.com> wrote:
>
>> 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.
>>
>> Giving it a little thought though gave me that :
>> http://usbip.sourceforge.net/
>>
>> 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.
>>
>> On Wed, May 13, 2015 at 2:32 PM, Giovanni Maruzzelli <gmaruzz at gmail.com>
>> wrote:
>>
>>> A separate instance of Freeswitch on second machine, and two machines
>>> talk each other via sip.
>>> -giovanni
>>>
>>> sent from my mobile,
>>> Giovanni Maruzzelli
>>> cell: +39 347 266 56 18
>>> On May 13, 2015 1:22 PM, "Mietek Sześniak" <
>>> mietekszczesniak2503 at gmail.com> wrote:
>>>
>>>> I'd like to use FreeSWITCH as my private bridge between SIP and GSM.
>>>>
>>>> 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.
>>>>
>>>> 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.
>>>>
>>>> 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?
>>>>
>>>> Thanks!
>>>>
>>>> PS. I'm still trying to wrap my head around FreeSWITCH, so please be
>>>> forgiving. :)
>>>>
>>>>
>>>> _________________________________________________________________________
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>>>
>>> _________________________________________________________________________
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>>>
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>>>
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>>
>>
>> _________________________________________________________________________
>> Professional FreeSWITCH Consulting Services:
>> consulting at freeswitch.org
>> http://www.freeswitchsolutions.com
>>
>> Official FreeSWITCH Sites
>> http://www.freeswitch.org
>> http://confluence.freeswitch.org
>> http://www.cluecon.com
>>
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>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://confluence.freeswitch.org
> http://www.cluecon.com
>
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