24 Oct
2022
24 Oct
'22
9:38 p.m.
All,
I'm not sure to whom to direct this question. I'm trying to research who informed
me (likely the late Brian Kantor WB6CYT, SK) - that an NTP server exists at 44.0.0.1
(gw.ampr.org).
Just doing some usual testing and updating of my node, I observed that there's no
longer a NTP response from that IP. Is this by design, another issue, etc?
I just wanted to ask, especially since AMPRGW is listed on the Wiki as an available NTP
server. I wanted to update that information if the service no longer operates on that IP.
--
73,
- LynwoodKB3VWG
24 Oct
24 Oct
10:05 p.m.
Hi Lynwood,
I'm not seeing any issues with gw.ampr.org's NTP service from here.
12:46:24.471888 IP (tos 0xb8, ttl 61, id 41700, offset 0, flags [none],
proto UDP (17), length 76)
gw.ampr.org.ntp > ntp.vk2hff.ampr.org.ntp: [udp sum ok] NTPv4,
length 48
Server, Leap indicator: (0), Stratum 2 (secondary reference),
poll 8 (256s), precision -24
Root Delay: 0.000244, Root dispersion: 0.032897, Reference-ID:
bigben.ucsd.edu
- Josh VK2HFF
On 25/10/2022 12:38 pm, lleachii--- via 44net wrote:
All,
I'm not sure to whom to direct this question. I'm trying to research
who informed me (likely the late Brian Kantor WB6CYT, SK) - that an
NTP server exists at 44.0.0.1 (gw.ampr.org).
Just doing some usual testing and updating of my node, I observed that
there's no longer a NTP response from that IP. Is this by design,
another issue, etc?
I just wanted to ask, especially since AMPRGW is listed on the Wiki as
an available NTP server. I wanted to update that information if the
service no longer operates on that IP.
--
73,
- Lynwood
KB3VWG
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11:09 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
25 Oct
25 Oct
4:31 a.m.
The gateway server will respond on port 123 from 44. IPs but nothing else.
Attached is yesterdays stats, is that what you were after?
73,
Chris - G1FEF
On 25 Oct 2022, at 04:09, lleachii--- via 44net
<44net(a)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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931
days inactive
931
days old
3 comments
3 participants
participants (3)
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Chris Smith -
Josh -
lleachii＠aol.com