Port 159982ping

UDP port 15998 is the default listener for 2ping, a tool that uses bidirectional probes to diagnose packet loss.

transport: udp
in transit: cleartext
assignment: official
risk: 2/10
lookups: 0

also known as 2ping Bi-Directional Ping Service, bidirectional ping

Technical Details

what runs on :15998

2ping is a UDP-based bidirectional ping utility, and UDP 15998 is its default listener port (the port can be changed). Its probe exchange uses a three-way sequence: a probe, a reply, and a confirmation, allowing both endpoints to observe which packets arrived. The service is only present when a 2ping listener is running; it is not a standard system daemon. Traffic is not encrypted by default.

Security Information

exposure of :15998

risk score

2/ 10safe

routine exposure. this port is rarely the way in on its own — keep it patched and logged and move on.

network services averages 2.6 across 1,901 ports — this one sits 0.6 below.

in transit

cleartext

credentials and payloads are readable by anyone on path

assignment

official

registered with iana for this service — scanners fingerprint it by number

reachable over

udp

udp is connectionless — source addresses are trivially spoofed and it is a reflection favourite

security overview

A listener exposed to the internet can receive unsolicited UDP diagnostic probes and reveal that 2ping is running. Keep it reachable only from hosts that need to perform diagnostics; use 2ping’s shared-secret authentication option where appropriate, since UDP itself provides no confidentiality and unauthenticated traffic can be spoofed.

Record

iana registry entry

port: :15998
service: 2ping
transport: UDP
encryption: cleartext
assignment: iana registered
risk: 2/10safe
category: Network Services
usage: A host running 2ping in listener mode can receive diagnostic probes on UDP 15998, the tool’s default port. Engineers use 2ping between two hosts to help determine whether packet loss is occurring in one direction or the other; it is not the ordinary ICMP ping service.
lookups: 0rank 993
added: 2026-10-17
updated: 2026-10-17
references: IANA service name registry — port 15998

Something wrong?

This record is maintained by the engineers who use port 15998. Every field on it is editable — change what's wrong, say how you know, and a reviewer publishes it, usually within a minute. Last touched 2026-10-17.

01edit any field on a page of its own
02a model checks it for accuracy and spam
03clean and confident goes live immediately

edit this record →back to the registry

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risk mix of the 8 listed

caution100%

0 of 8 encrypted

Port :159982ping

Technical Details

Security Information

Related Ports

Port 159982ping