[arm-allstar] Linking behind the firewall

[Tim Sawyer]

Yep, some routers hairpin and some don’t. It’s recommended to set all nodes up this way even if your router does hairpin. It’s generally more stable and lower latency that way. 
--
Tim
:wq

> On Jun 4, 2015, at 7:33 AM, jim.pilgram at gmail.com wrote:
> 
> Just set it up like Tim suggested and they connected right up. 
> 
> Funny thing, I've got a half dozen nodes behind my router and I don't have to do that. Worked right out of the shoot. 
> 
> There's a few of us who got a headache from trying to figure this out. 
> 
> Aloha & Mahalo
> 
> Sent from my BlackBerry 10 smartphone on the Verizon Wireless 4G LTE network.
> From: Tim Sawyer
> Sent: Thursday, June 4, 2015 04:21
> To: ARM Allstar
> Reply To: ARM Allstar
> Subject: Re: [arm-allstar] Linking behind the firewall
> 
> The issue is Hairpin NAT. http://en.wikipedia.org/wiki/Hairpinning <http://en.wikipedia.org/wiki/Hairpinning> Most routers hairpin but some just don’t.
> 
> The [nodes] setting in my other email on this topic should be done anytime two more servers are behind the same router/firewall. That allows the servers to connect directly as there is no need to send traffic through the router. 
> --
> Tim
> :wq
> 
>> On Jun 4, 2015, at 7:04 AM, Doug Crompton <doug at crompton.com <mailto:doug at crompton.com>> wrote:
>> 
>> Jim,
>> 
>> Let me just make sure you have things setup correctly. You have the LOCAL ip address and PORT at BOTH ends to the opposite server in the nodes section of rpt.conf? They both have to know about the other end.
>> 
>> If this is set correctly then what do you see in the log - asterisk -rvvv  when you try to connect to the opposing server? Look at this at both ends. 
>> 
>> 73 Doug
>> WA3DSP
>> http://www.crompton.com/hamradio <http://www.crompton.com/hamradio>
>> 
>> 
>> Date: Thu, 4 Jun 2015 01:34:53 -1000
>> From: jim.pilgram at gmail.com <mailto:jim.pilgram at gmail.com>
>> To: arm-allstar at hamvoip.org <mailto:arm-allstar at hamvoip.org>
>> Subject: [arm-allstar] Linking behind the firewall
>> 
>> Aloha,
>>  We have a really weird situation with one of the nodes on our system. The operator is running a Raspberry pi2 as a hub and a repeater with a beaglebone black as the controller. They are tied to the same router on his LAN with different ports. If he tries to connect the Raspi to the BBB or the other way around, he gets connection failed. We have completely rebuilt both nodes from the ground up twice re-downloading and extracting the image just to be sure. The ISP gave him a new modem/router hoping it would fix the problem but it didn't.
>> 
>> If he tries to connect to anyone else on the system outside his network, No Problemo and everyone can connect to his hub and/or node. All port forwarding is set up correctly. 
>> 
>> Any suggestions.
>> 
>> Jim NH6HI
>> 
>> 
>> 
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> 
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