Does ICMP use TCP or UDP?

Unlike the Internet Protocol (IP), ICMP is not associated with a transport layer protocol such as TCP or UDP. This makes ICMP a connectionless protocol: one device does not need to open a connection with another device before sending an ICMP message.

Does ping use ICMP or UDP?

Ping uses ICMP(Internet Control Message Protocol). it does not use TCP or UDP. To be more precise ICMP type 8(echo request message) and type 0(echo reply message) are used.

When using echo request reply ICMP does not use port numbers as TCP and UDP do Why?

6. Why is it that an ICMP packet does not have source and destination port number? Solution: The ICMP packet does not have source and destination port numbers because it was designed to communicate network-layer information between hosts and routers, not between application layer processes.

Does ECHO use TCP or UDP?

Echo is a standard TCP/IP service used primarily for testing reachability, debugging software, and identifying routing problems. The service is defined for both the TCP and UDP communication protocols.

Is ping and ICMP the same?

Internet Control Message Protocol (ICMP) is one of the protocols of the TCP/IP suite. The ICMP echo request and the ICMP echo reply messages are commonly known as ping messages.

How is ICMP different from TCP?

The primary difference is that TCP and UDP are for transferring application data (i.e. whatever the app desires), whereas ICMP is a “control” protocol that transfers information about other protocols.

What is echo request and echo reply?

The Echo Request simply means that the host to which it is addressed should reply to the packet. The Echo Reply is the ICMP message type that should be used in the reply. The Request includes some data, which can be specified by the ping command; whatever data is sent in the Echo Request is sent back in the Echo Reply.

What is echo client and echo server using TCP sockets?

In the TCP Echo client a socket is created. Using the socket a connection is made to the server using the connect() function. After a connection is established , we send messages input from the user and display the data received from the server using send() and read() functions.

What is ICMP echo reply?

The echo reply is an ICMP message generated in response to an echo request; it is mandatory for all hosts, and must include the exact payload received in the request. The identifier and sequence number can be used by the client to associate each echo request with its reply.

What is echo request and echo reply in ICMP?

The ICMP echo request and the ICMP echo reply messages are commonly known as ping messages. The ping command sends an ICMP echo request to a device on the network, and the device immediately responds with an ICMP echo reply.

What is the difference between ICMP echo and echo reply?

As mentioned in the previous page, an Echo is simply what we networking engineers call a ‘ping’. The Echo Reply is, as most would guess, the ‘ping reply’. ICMP Echos are used mostly for troubleshooting.