On 25 Oct 2022, at 04:09, lleachii--- via 44net <44net@mailman.ampr.org> wrote:

Josh,


Interesting, I just got a response (it took a while) - I set a client to 44net (and not Public Internet) to be sure:


user@machine:~$ ntpdate -q 44.0.0.1
server 44.0.0.1, stratum 2, offset 0.006765, delay 0.09117
24 Oct 22:53:28 ntpdate[2358]: adjust time server 44.0.0.1 offset 0.006765 sec



root@OpenWrt:~# tcpdump -vvn -i tunl0 port 123
tcpdump: listening on tunl0, link-type RAW (Raw IP), capture size 262144 bytes
02:53:28.015158 IP (tos 0x0, ttl 63, id 45381, offset 0, flags [DF], proto UDP (17), length 76)
    44.60.44.128.40861 > 44.0.0.1.123: [udp sum ok] NTPv4, length 48
        Client, Leap indicator: clock unsynchronized (192), Stratum 0 (unspecified), poll 3 (8s), precision -6
        Root Delay: 1.000000, Root dispersion: 1.000000, Reference-ID: (unspec)
          Reference Timestamp:  0.000000000
          Originator Timestamp: 0.000000000
          Receive Timestamp:    0.000000000
          Transmit Timestamp:   3875655208.011475472 (2022/10/25 02:53:28)
            Originator - Receive Timestamp:  0.000000000
            Originator - Transmit Timestamp: 3875655208.011475472 (2022/10/25 02:53:28)
02:53:28.079405 IP (tos 0xb8, ttl 62, id 48601, offset 0, flags [none], proto UDP (17), length 76)
    44.0.0.1.123 > 44.60.44.128.40861: [udp sum ok] NTPv4, length 48
        Server, Leap indicator:  (0), Stratum 2 (secondary reference), poll 3 (8s), precision -24
        Root Delay: 0.000213, Root dispersion: 0.037979, Reference-ID: 132.239.1.6
          Reference Timestamp:  3875654362.142300152 (2022/10/25 02:39:22)
          Originator Timestamp: 3875655208.011475472 (2022/10/25 02:53:28)
          Receive Timestamp:    3875655208.051018718 (2022/10/25 02:53:28)
          Transmit Timestamp:   3875655208.051066605 (2022/10/25 02:53:28)
            Originator - Receive Timestamp:  +0.039543245
            Originator - Transmit Timestamp: +0.039591132




It doesn't respond to the Public Internet.

This reminds me - does anyone have a link to the AMPRGW site that shows traffic statistics (e.g. for UDP, TCP, encaps-inside-header-not-44-SRC, etc.)?




Thanks,



- KB3VWG


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