Port 6347Gnutella2 (G2)

Port 6347 is commonly used by Gnutella2 peer-to-peer clients for file sharing and peer discovery.

transport: tcp · udp
in transit: cleartext
assignment: official
risk: 5/10
lookups: 0

also known as gnutella-rtr, G2

1 other service is registered on port 6347. compare all 2 →

Technical Details

what runs on :6347

Gnutella2 (G2) is a decentralized peer-to-peer file-sharing protocol, not a centralized router service. Clients commonly use TCP port 6347 for peer connections and file transfers, and UDP on the same port for discovery or query traffic. A listener is typically a P2P client accepting connections from other peers; protocol details and behavior vary by client, and traffic is not encrypted by default.

Security Information

exposure of :6347

risk score

5/ 10caution

worth attention. how exposed you are depends on configuration — don't leave it reachable from the internet without a reason.

file transfer averages 3.4 across 190 ports — this one sits 1.6 above.

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

tcp · udp

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

security overview

An exposed listener can accept connections from untrusted peers and may reveal the host's address or make files configured for sharing available to others. P2P clients can also have software vulnerabilities, so expose this port only when deliberately participating in the network, keep the client updated, and review its sharing settings.

Record

iana registry entry

port: :6347
service: Gnutella2 (G2)
transport: TCPUDP
encryption: cleartext
assignment: iana registered
risk: 5/10caution
category: File Transfer Network Services
usage: Gnutella2 clients, including Shareaza, commonly use TCP and UDP port 6347 to connect to peers and exchange search and file-sharing traffic. The IANA service handle is gnutella-rtr, registered to Serguei Osokine.
lookups: 0rank 993
added: 2026-10-10
updated: 2026-10-10
references: IANA service name registry — port 6347

Something wrong?

This record is maintained by the engineers who use port 6347. 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 2026-10-10.

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

all 190 in file transfer →

the 8 most looked-up other ports in file transfer — 190 ports carry that label.

port	service	proto	category	risk	views
:9080	Groove RPC	TCPUDP	Web Services	caution	70.8k
:17500	Dropbox LAN Sync	TCPUDP	File Transfer	caution	43.7k
:548	Apple Filing Protocol	TCP	File Transfer	caution	36.8k
:7000	Vuze HTTPS Tracker	TCPtls	Security	caution	28.9k
:1337	PowerFolder P2P	TCP	Security	caution	27.1k
:9001	SharePoint Authoring		Web Services	caution	26.3k
:8080	FilePhile Relay	UDP	File Transfer	caution	25.6k
:1337	WASTE Encrypted Sharing	TCP	Security	caution	22.9k

risk mix of the 8 listed

caution100%

1 of 8 encrypted

Port :6347Gnutella2 (G2)

Technical Details

Security Information

Related Ports

Port 6347Gnutella2 (G2)