What ports do SMTP and SNMP utilize?
Table of Contents
What ports do SMTP and SNMP utilize?
Default Port Numbers
| Port | IP | Protocol |
|---|---|---|
| 25 | TCP | SMTP |
| 53 | TCP & UDP | DNS |
| 80 | TCP | HTTP |
| 161 | UDP | SNMP |
What is SNMP port used for?
What is SNMP? Simple Network Management Protocol (SNMP) is a set of protocols for network management and monitoring. It is mostly used to monitor devices on a network like firewalls, routers, switches, servers, printers, bridges, NAS drives, UPS, and more.
Is SNMP UDP or TCP?
User Datagram Protocol
Typically, the SNMP protocol is implemented using the User Datagram Protocol (UDP). UDP is a connectionless protocol that works like the Transmission Control Protocol (TCP) but assumes that error-checking and recovery services are not required.
What is difference between SMTP and TCP?
A TCP handshake happens at the transport layer of the TCP/IP protocol stack, involving signaling using TCP flags, TCP sequence numbers, TCP port numbers and IP addresses. SMTP handshaking occurs at the application layer of the TCP/IP protocol, above the transport layer.
What is SNMP version?
What is SNMPv1? SNMPv1 is the original version of the Simple Network Management Protocol. SNMP was first introduced in 1988 by a group of university researchers to monitor networked devices over TCP/IP networks. By 1990, the Internet Architecture Board (IAB) approved SNMP as an internet standard.
What is SNMP string?
What Is an SNMP Community String? An SNMP community string is a means of accessing statistics stored within a router or other device. Sometimes referred to simply as a community string or an SNMP string, it comprises the user credential—ID or password—delivered alongside a GET request.
Does SNMP use IP?
And Wikipedia says that SNMP can be run over TCP/IP, but UDP is more common.
What SNMP 161?
SNMP servers open port 161. They listen for and respond to incoming client requests and commands and are also able to issue alerts, called “traps” in response to specified events.
What is POP3 SMTP?
SMTP is an abbreviation that stands for Simple Mail Transfer Protocol. This protocol allows applications to transmit email messages over the Internet. Basically, SMTP handles your outgoing mail. POP3 stands for Post Office Protocol revision 3. This protocol handles the receiving of email messages from your mail server.