[asterisk-users] Asterisk calls between 2 private networks

Thu Feb 7 12:05:43 CST 2013

I'm using Digium Phones.
I still do not understand why it's not possible to do it the way the 
networks are right now.

If the options I mentioned in my sip.conf are enough, then both phones 
should use Asterisk as a proxy, and Asterisk should handle all the media.

I will run tcpdump traces tonight and will check it out.
My router has a bug and won't let me mirror port. From tech support I 
need to reflash it. I'll do it and try it again.

F.

On 2/7/13 12:59 PM, Christopher Harrington wrote:
> Digium phones, which (as far as I can tell with my experience) do not
> support VPN yet.
>
>
> On Thu, Feb 7, 2013 at 11:57 AM, Justin Killen
> <jkillen at allamericanasphalt.com <mailto:jkillen at allamericanasphalt.com>>
> wrote:
>
>     Or if it's just a couple phones, you might be able to setup a vpn
>     connection directly on the phone itself - have it vpn into 'HQ' and
>     get an address on that network.  I'm not sure which phones you're
>     using though or what phones support that setup.
>
>     Justin Killen
>
>     -----Original Message-----
>     From: asterisk-users-bounces at lists.digium.com
>     <mailto:asterisk-users-bounces at lists.digium.com>
>     [mailto:asterisk-users-bounces at lists.digium.com
>     <mailto:asterisk-users-bounces at lists.digium.com>] On Behalf Of
>     Justin Killen
>     Sent: Thursday, February 07, 2013 9:55 AM
>     To: Asterisk Users Mailing List - Non-Commercial Discussion
>     Subject: Re: [asterisk-users] Asterisk calls between 2 private networks
>
>     I don't see how that would really solve anything - instead of the
>     server sending the 192.168.x.x packets onto the local network, it
>     will send them up toward the internet and get black-holed.  What
>     probably makes more sense would be to switch the subnet on one of
>     the networks, AND put up a vpn between them, adding the routes for
>     the private networks to cross thru the tunnels.
>
>     Justin Killen
>     -----Original Message-----
>     From: asterisk-users-bounces at lists.digium.com
>     <mailto:asterisk-users-bounces at lists.digium.com>
>     [mailto:asterisk-users-bounces at lists.digium.com
>     <mailto:asterisk-users-bounces at lists.digium.com>] On Behalf Of Frank
>     Sent: Thursday, February 07, 2013 9:49 AM
>     To: Asterisk Users Mailing List - Non-Commercial Discussion
>     Cc: Eric Wieling
>     Subject: Re: [asterisk-users] Asterisk calls between 2 private networks
>
>     I thought about that.
>     I will give it a shot tonight and will post back my results in here.
>     Thanks
>
>     On 2/7/13 12:39 PM, Eric Wieling wrote:
>      > The easiest thing to is renumber one of the networks so they are
>     not using the same address block.
>      >
>      > -----Original Message-----
>      > From: asterisk-users-bounces at lists.digium.com
>     <mailto:asterisk-users-bounces at lists.digium.com>
>     [mailto:asterisk-users-bounces at lists.digium.com
>     <mailto:asterisk-users-bounces at lists.digium.com>] On Behalf Of Frank
>      > Sent: Thursday, February 07, 2013 12:27 PM
>      > To: Asterisk Users Mailing List - Non-Commercial Discussion
>      > Subject: Re: [asterisk-users] Asterisk calls between 2 private
>     networks
>      >
>      > AJS,
>      >
>      > That is a solution that I am envisaging.
>      > But I would really love to try to work out with my issue first.
>     It will allow me to deploy more phones in separates buildlings in
>     the future. If I do the IAX solution, it means that for every
>     building, I need a box..
>      > Which I would like to prevent.
>      >
>      >
>      >
>      > On 2/7/13 10:46 AM, A J Stiles wrote:
>      >> On Thursday 07 February 2013, Frank wrote:
>      >>> My apologies if this topic was already discussed in the past.
>      >>>
>      >>> Here is my scenario:
>      >>> Network A - 192.168.1.0
>      >>> 1 Asterisk
>      >>> 1 Digium phone
>      >>> Router does NAT from the public IP to asterisk, and forward ports
>      >>> 5060tcp/udp and 10k-20k udp
>      >>>
>      >>> Network B - 192.168.1.0
>      >>> 1 Digium phone, registering to the public IP of network A
>      >>>
>      >>>
>      >>> My SIP.CONF has:
>      >>> nat=yes
>      >>> localnet=192.168.1.0/255.255.255.0
>     <http://192.168.1.0/255.255.255.0>
>      >>> externaddr=public_ip_of_network_a
>      >>> directmedia=no
>      >>
>      >> My  (lazy)  solution to this problem was to throw hardware at it
>     .....
>      >>
>      >> Bearing in mind that Asterisk will run on just about any old
>     scrapper
>      >> (or even a Raspberry Pi, if you feel so inclined),  there's little
>      >> point even trying to send SIP over the Internet.  Just have an
>      >> Asterisk box at each end, and then you only need a much
>     simpler-to-configure IAX trunk between the two.
>      >> The routers at each end then just need one port -- UDP 4569 --
>      >> forwarded to the Asterisk box  (if it isn't configured as the
>     default DMZ machine).
>      >>
>      >>
>      >
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