Port 20012Samsung Interdevice Interaction Discovery

UDP port 20012 is assigned to Samsung Interdevice Interaction discovery; common deployment and protocol behavior are not established.

transport: udp
in transit: cleartext
assignment: official
risk: 1/10
lookups: 0

also known as ss-idi-disc

Technical Details

what runs on :20012

Samsung Interdevice Interaction Discovery is registered on port :20012 over udp to Hong Jungkih. We don't have a technical write-up for it beyond the IANA registry entry.

In nmap's internet-wide scan data this port is never observed open, so if it's open on your network it's more likely a custom or misconfigured service than the registered one.

find what's listening on :20012

this machine

# linux
sudo ss -ulpn 'sport = :20012'

# macos / bsd
sudo lsof -nP -i :20012

# windows (then: tasklist /FI "PID eq <pid>")
netstat -ano | findstr :20012

another host

sudo nmap -sU -sV -p U:20012 <host>

run it? the handshake, the implementations you meet in the wild and the flags that matter come from the engineers who do.

add technical details

Security Information

exposure of :20012

risk score

1/ 10safe

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

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

no security notes recorded for :20012 yet

known exploits, hardening advice, what a compromise looks like — suggest an edit if you know its exposure.

Record

iana registry entry

port: :20012
service: Samsung Interdevice Interaction Discovery
transport: UDP
encryption: cleartext
assignment: iana registered
risk: 1/10safe
category: uncategorised
usage: IANA assigns UDP port 20012 to Samsung Interdevice Interaction discovery, registered to Hong Jungkih. The assignment alone does not establish how commonly it is deployed or what software listens on it.
lookups: 0rank 993
added: 2026-10-18
updated: 2026-10-18
references: IANA service name registry — port 20012

Something wrong?

This record is maintained by the engineers who use port 20012. 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 2026-10-18.

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

Related Ports

browse categories →

ports registered around :20012, by lookups.

port	service	proto	category	risk	views
:20000	DNP3		Network Services	caution	13.6k
:19999	DNP3 Secure		Security	caution	12.0k
:20000	Usermin User Tool		Web Services	caution	8.9k
:20014	DART Reporting Server	TCP	Security	caution	6.8k
:20002	Commtact HTTP	TCPUDP	Web Services	safe	0
:20001	MicroSAN	TCPUDP	—	safe	0
:20005	BTicino OpenWebNet	TCPUDP	IoT	risk	0
:19998	Secure IEC 60870-5-104	TCPtls	Security	risk	0

risk mix of the 8 listed

safe25%
caution50%
risk25%

1 of 8 encrypted

Port :20012Samsung Interdevice Interaction Discovery

Technical Details

Security Information

Related Ports

Port 20012Samsung Interdevice Interaction Discovery