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IPFYI
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30303

Ethereum P2P

Low Risk

TCP/UDP — Other

Port Overview

Port Number 30303
Service Name Ethereum P2P
Transport Protocol TCP/UDP
Category Other
Security Risk Low
Port Range Registered (1024-49151)

What is Port 30303?

Default peer-to-peer networking port for Ethereum nodes running Geth and other Ethereum clients. Used for block and transaction propagation across the Ethereum network. Both TCP (connections) and UDP (discovery) are used.

TCP/UDP Other Commonly Used

Security Considerations

Port 30303 (Ethereum P2P) is classified as low risk. This service uses encryption or has a minimal attack surface, making it relatively safe to expose.

Recommendation: Standard security practices apply. Keep software updated and monitor access.

Related Ports — Other

43 WHOIS 63 Whois++ 104 DICOM 105 CCSO Nameserver 170 Network PostScript 200 IMPLink 201 AppleTalk 213 IPX
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