TCP/UDP Port Finder

Enter port number (e.g. 21), service (e.g. ssh, ftp) or threat (e.g. nimda)
Database updated - March 30, 2016

Search results for "networks"

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Port: 3323/UDP
3323/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • active-net
    Active Networks
    IANA
Port: 3324/UDP
3324/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • active-net
    Active Networks
    IANA
Port: 3324/TCP
3324/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • active-net
    Active Networks
    IANA
Port: 3325/UDP
3325/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • active-net
    Active Networks
    IANA
Port: 3325/TCP
3325/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • active-net
    Active Networks
    IANA
Port: 4139/UDP
4139/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • thrtx
    Imperfect Networks Server
    IANA
Port: 4139/TCP
4139/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • thrtx
    Imperfect Networks Server
    IANA
Port: 5464/TCP
5464/TCP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • quailnet
    Quail Networks Object Broker
    IANA
Port: 5464/UDP
5464/UDP - Known port assignments (1 record found)
  • Service
    Details
    Source
  • quailnet
    Quail Networks Object Broker
    IANA
Port: 5678/UDP
5678/UDP - Known port assignments (7 records found)
  • Service
    Details
    Source
  •  
    Mikrotik RouterOS Neighbor Discovery Protocol (MNDP) (Unofficial)
    WIKI
  • rrac
    Remote Replication Agent Connection
    IANA
  • rrac
    SNATMAP server. The SNATMAP service on port 5678 is used to determine the external Internet address of hosts so that connections between iChat users can properly function behind network address translation (NAT). The SNATMAP service simply communicates to clients the Internet address that connected to it. This service runs on an Apple server, but does not send personal information to Apple. When certain iChat AV features are used, this service will be contacted. Blocking this service may cause issues with iChat AV connections with hosts on networks that use NAT.
    Apple
  • threat
    [threat] osagent communication
    Bekkoame
  • threat
    [threat] A port for remote execution using the crexd/srexd services.
    Bekkoame
  • threat
    [threat] A frequent port some picks at random.
    Bekkoame
  • threat
    [threat] Port 5678 was originally specified for the PPTP protocol, but when the standard was ratified, port 1723 was chosen instead.
    Bekkoame
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About TCP/UDP ports

TCP port 3323 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! TCP guarantees delivery of data packets on port 3323 in the same order in which they were sent. Guaranteed communication over TCP port 3323 is the main difference between TCP and UDP. UDP port 3323 would not have guaranteed communication as TCP.
UDP on port 3323 provides an unreliable service and datagrams may arrive duplicated, out of order, or missing without notice. UDP on port 3323 thinks that error checking and correction is not necessary or performed in the application, avoiding the overhead of such processing at the network interface level.
UDP (User Datagram Protocol) is a minimal message-oriented Transport Layer protocol (protocol is documented in IETF RFC 768).
Application examples that often use UDP: voice over IP (VoIP), streaming media and real-time multiplayer games. Many web applications use UDP, e.g. the Domain Name System (DNS), the Routing Information Protocol (RIP), the Dynamic Host Configuration Protocol (DHCP), the Simple Network Management Protocol (SNMP).
TCP vs UDP - TCP: reliable, ordered, heavyweight, streaming; UDP - unreliable, not ordered, lightweight, datagrams.
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