Is it possible to use this for none IRLP application? We want to run RC Forb Server/Remotehams from our club house. But we use cellular internet and can’t do port forwarding. -Kun
From: Dave Gingrich via 44Netmailto:44net@mailman.ampr.org Sent: Tuesday, August 10, 2021 4:03 PM To: 44Net general discussionmailto:44net@mailman.ampr.org Cc: Dave Gingrichmailto:dave@dcg.us Subject: Re: [44net] Use cases
Use case: IRLP repeaters, VoIP linking.
44.127.48.0/20 BGP routed with the help of Vultr.com
All IRLP repeaters must have an accessible Public IP address. It is becoming more difficult to get a public IP (or more than one) from local ISPs, especially if you are using a cellular connection to the Internet. We run a customized implementation of OpenVPN using TCP based tunnels that provides a single address (/32) to each connected client node. The service is free.
To manage the users, I use PiVPN (see pivpn.io), which is a very cool tool. PiVPN was developed using a Raspberry Pi, but it works on any Debian, including a VPS from Vultr. PiVPN can mange OpenVPN or wireguard. I chose OpenVPN because it supports TCP based tunnels, wireguard only runs using UDP.
With vultr.com, you must run an BGP routing daemon to a local router (which might sound intimidating, but is pretty simple if you follow Vultr's docs), which then advertises that network out the selected data center. I can slice and dice the /20 into into pieces as small as a /24 from any of Vultr’s 18 data centers around the world.
Right now I am advertising a /23 from Chicago, and a /24 from Sydney. We are planning to add service from Vultr's Seattle DC soon, followed by Dallas. But no time frame is set for that. Right now we have roughly 250 OpenVPN tunnels provisioned.
I am paying US$6/mo for each of the servers, which gives me a 3.7, GHz single CPU VM with a 10 gigabit interface. They do not charge a fee for the BGP routing.
If you want to check its performance, try pinging Chicago 44.127.48.1 and Sydney 44.127.63.1.
As long as we stay with Vultr.com, I can light up any portion of the /20 in any of their data centers. So far Vultr has been awesome, I do not expect to change anything.
There are more than fifty 44.0 subnets that Vultr.com is routing for somebody.
-Dave K9DC
On Aug 10, 2021, at 15:58, Lynn Grant via 44Net 44net@mailman.ampr.org wrote:
Greetings, While I can understand in general terms what might be done with hybrid Internat-ham radio links, I would find it very useful to see examples of what other hams are currently doing with them. Would it be possible to have a few hams do short write-ups on what they are doing, and put them on the ARDC home page? Right now, it seems heavily skewed towards how to set up the networking end of things (which, of course, is very important, and something that hams new to networking could use some help with), with not much attention given to "Why would I want to do this?" Thanks, and 73, Lynn Grant N8AF / V31LK
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