24 Oct
2022
24 Oct
'22
10:09 p.m.
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 44.0.0.1server 44.0.0.1, stratum 2, offset 0.006765, delay
0.0911724 Oct 22:53:28 ntpdate[2358]: adjust time server 44.0.0.1 offset 0.006765 sec
root@OpenWrt:~# tcpdump -vvn -i tunl0 port 123tcpdump: listening on tunl0, link-type RAW
(Raw IP), capture size 262144 bytes02:53:28.015158 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