[arm-allstar] New node connection problem. Insight needed.

Tue Jul 6 20:12:40 EDT 2021

Hello All,
I have two nodes on separate pi4Bs with one working fine with respect to connecting to other nodes and the other not working. Other than the type of internet connections of the nodes, I don´t know of any material difference in setup. The new node is using the wireless option for connection to an iphone hotspot. I am operating with the understanding that even without port forwarding I should be able to get this new node to connect to other nodes.
                I found two of the scripts via the hamvoip forum that others have recommended running. These being check_connect.sh and check_reg.sh. I ran these scripts and the results seem to confirm that the old node should work(which it does), and the new node  should not (it is not receiving DNS lookup returns). I have copied the results of the scripts runs for each of the two nodes below.

                I have two specific questions that I would really like to find the answers to. I would greatly appreciate getting pointed in the right direction.

Question 1: What if any value/meaning is there in seeing a node labelled as “registered” in my node portal on the allstarlink.org site, or in seeing that a node is “registered” when running the check_reg.sh script? Is it possible to be “registered” and not receiving DNS lookup returns? If so, how? Is it possible the site and script to indicate that a node is registered, but it is in fact not? If so, how?

Question 2: What are my next steps in debugging this? Based only on the answer to the debugging fundamental question of “what changed from working scenario to broken scenario?”, I suspect that using my iphone hotspot as the internet source could be causing issues. I´ve seen people in forums talk about using open vpn for mobile hotspot connected nodes, and I´ve seen some people on forums say that´s absolutely not needed as long as you don´t need to connect into a node with an app like voiper or DVswitch.  How do I find root cause as to why DNS lookups are failing? Registration problem, vs connection problem, vs. some other problem… I have seen that registration issues have been a problem and that David has worked hard to provide a registration avenue via havoip, but I don´t understand enough at this point to know if it´s a reg problem, or what to do if it´s not.

Script Run results:
OLD FUNCTIONAL NODE 53642:

[root at moseslink1 /]# ./usr/local/sbin/check_connect.sh

                Check Internet Connectivity

        Your local IP address is - 192.168.15.192
        Your public IP address is - 198.254.80.95

        Current nameserver(s)

        nameserver 127.0.0.1

        Checking DNS Servers

        DNS 127.0.0.1 returns 74.91.126.182 for hamvoip.org
        DNS 127.0.0.1 returns hvdallas2.hamvoip.org. for register.hamvoip.org
        DNS 127.0.0.1 returns 12.17.29.162 for stats.hamvoip.org
        DNS 127.0.0.1 returns 34.105.111.212 for allstarlink.org
        DNS 127.0.0.1 returns stats-west.allstarlink.org. for stats.allstarlink.org
        DNS 127.0.0.1 returns 162.248.92.131 for register.allstarlink.org
        DNS 127.0.0.1 returns 142.250.105.113 for google.com
        DNS 8.8.8.8 returns 74.91.126.182 for hamvoip.org
        DNS 8.8.8.8 returns hvdallas2.hamvoip.org. for register.hamvoip.org
        DNS 8.8.8.8 returns 12.17.29.162 for stats.hamvoip.org
        DNS 8.8.8.8 returns 34.105.111.212 for allstarlink.org
        DNS 8.8.8.8 returns stats-west.allstarlink.org. for stats.allstarlink.org
        DNS 8.8.8.8 returns 162.248.92.131 for register.allstarlink.org
        DNS 8.8.8.8 returns 142.250.105.139 for google.com
        DNS 8.8.4.4 returns 74.91.126.182 for hamvoip.org
        DNS 8.8.4.4 returns hvdallas2.hamvoip.org. for register.hamvoip.org
        DNS 8.8.4.4 returns 12.17.29.162 for stats.hamvoip.org
        DNS 8.8.4.4 returns 34.105.111.212 for allstarlink.org
        DNS 8.8.4.4 returns stats-west.allstarlink.org. for stats.allstarlink.org
        DNS 8.8.4.4 returns 162.248.92.131 for register.allstarlink.org
        DNS 8.8.4.4 returns 142.250.105.139 for google.com

        Important Destination Checks

        localhost is reachable at 127.0.0.1
        hamvoip.org is reachable at 74.91.126.182
        register.hamvoip.org is reachable at 74.91.126.182
        stats.hamvoip.org is reachable at 12.17.29.162
        allstarlink.org is reachable at 34.105.111.212
        stats.allstarlink.org is reachable at 34.105.111.212
        register.allstarlink.org is not reachable
        google.com is reachable at 142.250.105.138

        NOT ALL SITES REACHABLE!

[root at moseslink1 /]# ./usr/local/sbin/check_reg.sh

Node - 53642 at IP address- 198.254.80.95, Port- 4569 is "Registered" at Server
IP- 162.248.92.131 (register-central.allstarlink.org.), Port- 4569

DNS lookup returns - +OK|radio at 198.254.80.95:4569/53642,198.254.80.95

NEW NON FUNCTIONAL NODE 55023:

[root at MBP2013 /]# [root at MBP2013 /]# ./usr/local/sbin/check_connect.sh

        Your local IP address is - 172.20.10.6
        Your public IP address is - 191.156.40.135

        Current nameserver(s)

        nameserver 127.0.0.1

        Checking DNS Servers

[root at MBP2013 /]#
        DNS 127.0.0.1 returns 74.91.126.182 for hamvoip.org
        DNS 127.0.0.1 returns hvdallas2.hamvoip.org. for register.hamvoip.org
        DNS 127.0.0.1 returns 12.17.29.162 for stats.hamvoip.org
        DNS 127.0.0.1 returns 34.105.111.212 for allstarlink.org
[root at MBP2013 /]#                 Check Internet Connectivity
        stats.hamvoip.org is not reachable
        allstarlink.org is reachable at 34.105.111.212
        stats.allstarlink.org is reachable at 34.105.111.212
        register.allstarlink.org is not reachable
        google.com is reachable at 172.217.30.206

        NOT ALL SITES REACHABLE!

[root at MBP2013 /]# ./usr/local/sbin/check_reg.sh

Node - 55023 at IP address- 191.156.41.17, Port- 4569 is "Registered" at Server
IP- 34.105.111.212 (register-west1-b.allstarlink.org.), Port- 4569

DNS lookup returns - -ER|TIMEOUT

Thank You for taking time to look at this!
Bets Regards,
Nathanael Griesert AD8GP