Ports

Port	Name	Protocol	Public	Purpose
30303	p2p	TCP/UDP	true	Execution client peer discovery and block/tx gossip.
8545	http-rpc	HTTP	controlled	JSON-RPC HTTP; Geth default HTTP RPC port per Geth docs.
8546	ws-rpc	WebSocket	controlled	JSON-RPC WebSocket; Geth default WS RPC port per Geth docs.
5052	beacon	HTTP	false	Consensus Beacon REST API from beacon-APIs.
8551	engine	HTTP + JWT	false	Authenticated Engine API.
6060	metrics	HTTP	false	Client metrics/debug endpoint when enabled.