UDP traffic

Datagrams matching port:2123 sent to HoneyLabs sensors over UDP in the last 24 hours. DNS questions and QUIC client fingerprints are decoded on the sensor. Other datagrams are kept as their first bytes and labelled by protocol where it can be recognised.

A UDP source address can be forged, so each address listed here either sent the traffic or was impersonated by whoever did. UDP traffic is kept out of verdicts, feeds, watchlists and alerts.

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Datagrams

Source addresses

Networks

Countries

Destination ports

Traffic by type

Other services

8 datagrams from 7 sources

First packets of sessions with VPN, voice, tunnelling, database and management services.

GTP-C 8

Latest GTP-C datagram, to 2123/udp

2·

payload bytes

00000000  32 01 00 04 00 00 00 00  00 00 00 00              |2...........|

Unrecognised

7 datagrams from 6 sources

Datagrams no decoder recognised. Their first bytes are kept.

Unrecognised 7

Latest Unrecognised datagram, to 2123/udp

·O#Kq·R·

payload bytes

00000000  e3 00 04 fa 00 01 00 00  00 01 00 00 00 00 00 00  |................|
00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  c5 4f 23 4b 71 b1 52 f3  |.........O#Kq.R.|

Destination ports

2123/udp GTP-C15

Networks

AS6939 Hurricane Electric LLC from 9 sources10
AS32475 Internap Holding LLC from 1 source3
AS396982 Google LLC from 2 sources2

Countries

US United States15

Source addresses (unverified)

Address	Network	Cc	Sends	Datagrams	Last seen (UTC)
203.55.131.5	AS32475 Internap Holding LLC	US	GTP-C	3	2026-10-10 10:30
74.82.47.61	AS6939 Hurricane Electric LLC	US	Unrecognised	2	2026-10-10 09:42
65.49.1.56	AS6939 Hurricane Electric LLC	US	GTP-C	1	2026-10-10 05:53
162.216.149.140	AS396982 Google LLC	US	Unrecognised	1	2026-10-10 17:33
65.49.1.26	AS6939 Hurricane Electric LLC	US	GTP-C	1	2026-10-11 00:46
65.49.1.36	AS6939 Hurricane Electric LLC	US	GTP-C	1	2026-10-11 00:10
64.62.197.159	AS6939 Hurricane Electric LLC	US	Unrecognised	1	2026-10-10 09:23
64.62.156.32	AS6939 Hurricane Electric LLC	US	GTP-C	1	2026-10-10 06:45
64.62.156.67	AS6939 Hurricane Electric LLC	US	Unrecognised	1	2026-10-10 09:16
64.62.197.40	AS6939 Hurricane Electric LLC	US	GTP-C	1	2026-10-11 04:58
162.216.150.91	AS396982 Google LLC	US	Unrecognised	1	2026-10-10 20:44
65.49.20.85	AS6939 Hurricane Electric LLC	US	GTP-C	1	2026-10-11 03:25

Latest datagrams

2026-10-11 04:58:2564.62.197.40to 2123/udpGTP-CUS

2·

payload bytes

00000000  32 01 00 04 00 00 00 00  00 00 00 00              |2...........|

2026-10-11 03:25:4465.49.20.85to 2123/udpGTP-CUS

2·

payload bytes

00000000  32 01 00 04 00 00 00 00  00 00 00 00              |2...........|

2026-10-11 00:46:5565.49.1.26to 2123/udpGTP-CUS

2·

payload bytes

00000000  32 01 00 04 00 00 00 00  00 00 00 00              |2...........|

2026-10-11 00:10:3865.49.1.36to 2123/udpGTP-CUS

2·

payload bytes

00000000  32 01 00 04 00 00 00 00  00 00 00 00              |2...........|

2026-10-10 20:44:57162.216.150.91to 2123/udpUnrecognisedUS

·O#Kq·R·

payload bytes

00000000  e3 00 04 fa 00 01 00 00  00 01 00 00 00 00 00 00  |................|
00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  c5 4f 23 4b 71 b1 52 f3  |.........O#Kq.R.|

2026-10-10 17:33:42162.216.149.140to 2123/udpUnrecognisedUS

·O#Kq·R·

payload bytes

00000000  e3 00 04 fa 00 01 00 00  00 01 00 00 00 00 00 00  |................|
00000010  00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00  |................|
00000020  00 00 00 00 00 00 00 00  c5 4f 23 4b 71 b1 52 f3  |.........O#Kq.R.|

2026-10-10 10:30:53203.55.131.5to 2123/udpGTP-CUS

@·

payload bytes

00000000  40 01 00 04 ff 00 00 00                           |@.......|

2026-10-10 10:08:09203.55.131.5to 2123/udpGTP-CUS

2·=·

payload bytes

00000000  32 01 00 04 00 00 00 00  0c 3d 00 00              |2........=..|

2026-10-10 09:45:41203.55.131.5to 2123/udpUnrecognisedUS

·3133·

payload bytes

00000000  10 01 00 00 00 00 00 00  00 ff ff ff 33 31 33 33  |............3133|
00000010  00 00 00 00                                       |....|

2026-10-10 09:42:3274.82.47.61to 2123/udpUnrecognisedUS

@·

payload bytes

00000000  40 01 00 04 00 00 00 00  00 00 00 00              |@...........|

2026-10-10 09:23:2464.62.197.159to 2123/udpUnrecognisedUS

@·

payload bytes

00000000  40 01 00 04 00 00 00 00  00 00 00 00              |@...........|

2026-10-10 09:16:3964.62.156.67to 2123/udpUnrecognisedUS

@·

payload bytes

00000000  40 01 00 04 00 00 00 00  00 00 00 00              |@...........|

2026-10-10 07:30:5974.82.47.61to 2123/udpUnrecognisedUS

@·

payload bytes

00000000  40 01 00 04 00 00 00 00  00 00 00 00              |@...........|

2026-10-10 06:45:4864.62.156.32to 2123/udpGTP-CUS

2·

payload bytes

00000000  32 01 00 04 00 00 00 00  00 00 00 00              |2...........|

2026-10-10 05:53:5965.49.1.56to 2123/udpGTP-CUS

2·

payload bytes

00000000  32 01 00 04 00 00 00 00  00 00 00 00              |2...........|