[arm-allstar] Is port forwarding required?

Mike Sullivan kn4imu at gmail.com
Sat Jun 20 21:34:36 EDT 2020


Without a VPN you can only make outbound Allstar only connections. Cell
phone providers will use double NAT for all their connections.. simply put
there are not enough IPv4 addresses to cover every individual connected
cellular device in the world.

One thing I have also noticed with some providers, particularly resellers..
their DNS servers will use one IP for outbound and another for inbound
connections. We tried using a node on a modem with a SIM card from Unreal
Mobile (an AT&T reseller) and every node was dropping the call because the
IP that was connecting was not the same as the one you’re registered with.

Last option.. the node you are connecting to does not allow, or is not set
up to allow inbound connections (no ports opened, same setup, etc)

You have two options:

1 (Easier) Set up a VPN or virtual private network. This is a virtual
server that uses a static IP address and allows you to forward your
connection through. Hamvoip offers two flavors, OpenVPN and another that
I’m having trouble remembering while mobile.

2 (Less easy) Set up a hub node on a virtual server with proper ports
forwarded and set your node up to connect to it every time it starts. This
will only work if your provider is not using multiple IP’s for your
connection.

Mike

On Sat, Jun 20, 2020 at 21:15 "dbachman via ARM-allstar" <
arm-allstar at hamvoip.org> wrote:

> The node works fine on my LAN...and I have a static ip address set up. Ip
> address 10.0.1.5When I connect to my phone hotspot, I hear an ip address
> 192.168.43.71...is this valid? It is always this...but unable to connect a
> node..I am sure I am missing something but not sure..I don't know how to do
> a *A1 or *A5 on my handheld..I guess I need to be led by the hand for a
> bit..Thanks DougSent from my Verizon, Samsung Galaxy smartphone
> -------- Original message --------From: Doug Crompton via ARM-allstar <
> arm-allstar at hamvoip.org> Date: 6/19/20  9:28 PM  (GMT-07:00) To: ARM
> Allstar <arm-allstar at hamvoip.org> Cc: Doug Crompton <wa3dsp at gmail.com>
> Subject: Re: [arm-allstar] Is port forwarding required? Allstar will work
> with phone hotspots outbound without any port forwardingthe same as it
> would on wifi or wired Internet assuming you areregistering. You won't be
> able to accept incoming calls because there is noway to port forward.If
> outgoing calls are not working you need to give us more informationabout
> what is happening when you try to connect. Do you get any response?Do you
> hear beeps? Do you get a connection fail?Also are you getting a valid IP
> address when you connect? You can hear yourIP address with the DTMF *A1
> over the radio - Are you registering? You cancheck this by ssh'ing in and
> executing the script check-reg.sh at the Linuxbash prompt. If you are
> unable to do that DTMF *A5 will tell youregistration status
>  over the radio,*73 Doug**WA3DSP**http://www.crompton.com/hamradio <
> http://www.crompton.com/hamradio>*On Fri, Jun 19, 2020 at 10:04 PM
> "dbachman via ARM-allstar" <arm-allstar at hamvoip.org> wrote:> Hi
> Darrel,Were you able to get allstar to receive incoming calls? I have> been
> trying to figure this out..when I connect my node to my phone hotspot,> it
> gives me an iPhone address but I am unable to connect to any nodes...any>
> ideas or tips?Thanks, DonKe7vcSent from my Verizon, Samsung Galaxy>
> smartphone> _______________________________________________>> ARM-allstar
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