What Are The Different Types Of ICMP Messages? - Fixanswer

It is

used for feedback messaging, error handling and management queries

. ICMP works at the Network Layer. IP (Internet Protocol) is the most important protocol governing network layer. An ICMP packet is an integral part of IP packets.

What are the two types of ICMP messages that are received at the sending host executing the Traceroute program?

TTL (Time to live) expired and Port unreachable messages

are received at the sending host which are executes the traceroute program.

What are the two ICMP messages used by the ping command?

Ping uses two ICMP codes:

8 (echo request) and 0 (echo reply)

. When you issue the Ping command at the prompt, the Ping program sends out an ICMP packet containing the code 8 in the Type field.

What are the ICMP error messages?

ICMP messages are typically used for diagnostic or control purposes or generated in response to errors in IP operations (as specified in RFC 1122). ICMP errors are

directed to the source IP address of the originating packet

.

What is the purpose of ICMP messages?

Explanation:The purpose of ICMP messages is

to provide feedback about issues that are related to the processing of IP packets

.

What is ICMP explain?

ICMP (

Internet Control Message Protocol

) is an error-reporting protocol that network devices such as routers use to generate error messages to the source IP address when network problems prevent delivery of IP packets. … Any IP network device has the capability to send, receive or process ICMP messages.

Which ICMP types allow?

The only essential ICMP traffic you need to allow in and out of your firewall is

Type 3 and Type 4

. Everything else is either optional or should be blocked. Notes: To send ping requests, allow type 8 OUT and type 0 IN.

Where is ICMP protocol used?

ICMP is mainly used to determine whether or not data is reaching its intended destination in a timely manner. Commonly, the ICMP protocol is used on

network devices

, such as routers. ICMP is crucial for error reporting and testing, but it can also be used in distributed denial-of-service (DDoS) attacks.

Is Traceroute a TCP or UDP?

By default Windows tracert uses ICMP and both Mac OS X and Linux

traceroute use UDP

. … The Mac and Linux versions I have offer the ability to choose a variety of different protocols including ICMP, TCP, UDP and GRE packets.

What from the following is under ICMP messages?

The ICMP stands for Internet Control Message Protocol. It is a network layer protocol. It is used for

error handling in

the network layer, and it is primarily used on network devices such as routers. … In this case, the router sends the message to the sender that I could not send the message to that destination.

Which two types of ICMP messages might be used by the destination host to indicate that it is successfully reached?

Ping uses two ICMP message types:

type 8 (Echo Request) and type 0 (Echo Reply)

. When you issue a ping command, the source sends an ICMP Echo Request to the destination. If the destination is available and is allowed to respond, then it replies with an ICMP Echo Reply.

What are 5 types of errors handled by ICMP messages?

ICMP uses the source IP address to send the error message to the source (originator) of the datagram. Five types of errors are handled:

destination unreachable, source quench, time exceeded, parameter problems, and redirection

(see figure1).

What port does ICMP use?

Firewall rules for ICMP (

TCP/UDP port 7

)

Is ICMP a Layer 3?

However, ICMP is implemented as part of the IP layer. So ICMP processing can be viewed as occurring parallel to, or as part of, IP processing. Therefore, in the topic on TCP/IP-based layered network, ICMP is shown as a

layer 3 protocol

.