Port 125 Details
known port assignments and vulnerabilities
2 records found
||Port is sometimes unofficially used as an alternate to port 25 SMTP (Simple Mail Transfer Protocol). This is useful as a dedicated port for VPN clients or for those who cannot directly send mail to a mail server outside of their ISP's network because of an ISP block on port 25.
||Locus PC-Interface Net Map Ser
Related ports: 25 26 2525
« back to SG Ports
SANS Internet Storm Center: port 125
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.
Please use the "Add Comment" button below to provide additional information or comments about port 125.