I know BitTorrent uses it, but I don't deal with BitTorrent. Also, World of Warcraft uses ports 6881 - 6999 for its Blizzard downloader and I do play WoW, but I don't think they would be downloading from the above named countries. Anyone have a guess or is it just a random check to see if this port is available?

Port 6881. Ports those registered with IANA are shown as official ports. The same port number may be unofficialy used by various services or applications. The official usage are listed separately below its usage may change from time to time. Official Mar 30, 2016 · TCP port 6881 uses the Transmission Control Protocol. TCP is one of the main protocols in TCP/IP networks. TCP is a connection-oriented protocol, it requires handshaking to set up end-to-end communications. Only when a connection is set up user's data can be sent bi-directionally over the connection. Attention! Dec 31, 2016 · A few weeks ago, while analyzing a customer’s network, I’ve discovered that their QNAP NAS was making a lot of outgoing connections on UDP port 6881. Knowing that this NAS is only used as an internal repository for Veeam backup, I knew that this traffic was not wanted. Here is an example of the traffic : Sep 03, 2014 · Why is port 6881 (or whatever) blocked/blacklisted? To avoid a decreasing Average Swarm Speed, some tracker administrators are banning these often throttled standard ports. This includes the standard port range of 6881–6999, which ports were used by the "original" Bittorrent client program a few years ago.

Dec 12, 2014 · hi all, My OS is solaris 8 with core system installation only. so far everything works fine. by i do some testing from my xp pc as client to nmap and scan opening port to my solaris. the result as below: Initiating SYN Stealth Scan against at 16:25 Discovered open port 21/tcp on

once uninstalled it will take a while for client to give up. if you were using upnp on your router you could clear the upnp router table by rebooting the PC/NAS or whatever was the torrent client/server and your router. this should clear the port forwarding upnp rules.. if you have port forwarding setup on your router then just disable the 6889 port from being routed via the NAT firewall. Port(s) Protocol Service Details Source; 6886 : tcp: applications: BitTorrent P2P traffic, Azureus P2P traffic (6881-6889), GeoVision SMS Age of Conan game, World of Warcraft (WoW) Downloader Feb 26, 2014 · iptables -I INPUT -p udp --dport -j ACCEPT is the port number you have used for port forwarding (Avoid 6881-6999, any from 49125-65535 is fine) Once you've established the port is open you need to make the change persist through a reboot; edit file /etc/rc.local and add the lines below:

Signaling (including call setup) uses an arbitrary port on the PC that runs ConferenceMe, and by default the following port on the Cisco TelePresence MCU: Port 80 in configurations with MCU version 4.1(1.59) or earlier. Port 80 is also used for the HTTP web service. Port 81 in configurations with MCU version 4.2(1.43) or later.

Dec 08, 2005 · You also need to open port using following iptables rules on Linux desktop (open TCP port 6881 to 6999): iptables -A INPUT -p tcp --destination-port 6881:6999 -j ACCEPT iptables -A OUTPUT -p tcp --source-port 6881:6999 -j ACCEPT. Here is a complete sample firewall script: Oct 21, 2019 · The information in brackets is the name of the program that’s using the port. TCP or UDP refers to the protocol being used on that port. The number consists of an IP address and then the port number after the colon. Scanning For Blocked Ports I was inspecting the traffic on the server with tcpdump, and I found a LOT of connections from different IP addresses to port 6881. All ports on my machine are blocked except those that are really needed for a web server (like port 80). I checked and confirmed that 6881 and the rest of the ports are in filtered (firewalled) state. May 19, 2017 · Select Port from the Rule Type listing. Select TCP or UDP, and specify the ports, or a port range (e.g. 445, or 137-139). Select block the connection. Select when the rule applies (leave default if unsure). Add a name, e.g. Port 445, and a description, (e.g. reason for blocking, and date/time). The next column lists each port used by the product, including any port ranges. The third column shows which protocol the ports refer to (TCP, UDP or both). Finally, a description of the application protocol is provided where appropriate. Jun 17, 2005 · Inbound Port: 6881-6889 Type: TCP Private IP: (~ip provided) Private Port: 6881-6889 But I still have doubts about the ports being open. Shields up reports the ports as being "Stealth" Ok, that would indicate it's a firewall issue then. Looking over the Azureus user guide, it appears that it only uses port 6881 now and uses both tcp and udp protocols. Try adding these rules: iptables -I INPUT -p tcp --dport 6881 -j ACCEPT iptables -I INPUT -p udp --dport 6881 -j ACCEPT