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Port 6881 Details

known port assignments and vulnerabilities
threat/application/port search:
Port(s) Protocol Service Details Source
6881 tcp applications Games using this port:
Age of Conan
World of Tanks
World of Warcraft (WoW) Downloader

ABC (a.k.a. Yet Another Bittorrent Client), BitTorrent P2P traffic, Azureus P2P traffic (6881-6889)
6881-6887 tcp,udp BitTorrent part of full range of ports used most often (unofficial) Wikipedia
6881 tcp bittorrent Bit Torrent P2P SANS
6881-6889 tcp,udp applications Age of Conan Portforward
6881 tcp applications Azureus Portforward
3724,6112,6881-6999 tcp applications World of Warcraft Downloader Portforward
6881 tcp bittorrent-tracker BitTorrent tracker Nmap
6869-6887 tcp,udp Unassigned IANA
8 records found
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Related ports: 6882  6883  6884  6885  6886  6887  6888  6889  

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External Resources
SANS Internet Storm Center: port 6881

Well Known Ports: 0 through 1023.
Registered Ports: 1024 through 49151.
Dynamic/Private : 49152 through 65535.

TCP ports use the Transmission Control Protocol. TCP is the most commonly used protocol on the Internet and any TCP/IP network. Whereas the IP protocol deals only with packets, TCP enables two hosts to establish a connection and exchange streams of data. TCP guarantees delivery of data and that packets will be delivered in the same order in which they were sent. Guaranteed communication/delivery is the key difference between TCP and UDP.

UDP ports use the Datagram Protocol, a communications protocol for the Internet network, transport, and session layers. Like TCP (Transmission Control Protocol), UDP is used with IP (the Internet Protocol) and makes possible the transmission of datagrams from one computer to applications on another computer, but unlike TCP, UDP is connectionless and does not guarantee reliable communication; it's up to the application that received the message to process any errors and verify correct delivery. UDP is often used with time-sensitive applications, such as audio/video streaming, where dropping some packets is preferable to waiting for delayed data.

When troubleshooting unknown open ports, it is useful to find exactly what services/processes are listening to them. This can be accomplished in both Windows command prompt and Linux variants using the "netstat -aon" command. We also recommend runnig multiple anti-virus/anti-malware scans to rule out the possibility of active malicious software. For more detailed and personalized help please use our forums.

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