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Windows Server® 2008 TCP/IP Protocols and Services by Joseph Davies

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ICMP Messages

Table 6-1 lists the most commonly used ICMP types.

Table 6-1. Common ICMP Types

ICMP Type

Description

0

Echo Reply

3

Destination Unreachable

4

Source Quench

5

Redirect

8

Echo (also known as an Echo Request)

9

Router Advertisement

10

Router Solicitation

11

Time Exceeded

12

Parameter Problem

For a complete list of ICMP types, see http://www.iana.org/assignments/icmp-parameters.

The following sections discuss the ICMP messages supported by TCP/IP for Windows Server 2008 and Windows Vista.

ICMP Echo and Echo Reply

One of the most heavily used ICMP facilities is the ability to send a simple message to an IP node and have the message echoed back to the sender. This facility is useful for network troubleshooting and debugging. The simple message sent is an ICMP ...

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