January 2008
Intermediate to advanced
624 pages
14h 16m
English
Content preview from Windows Server® 2008 TCP/IP Protocols and Services
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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 ...