ICMP Source Quench
Source Quench is an Internet Control Message Protocol message which requests that the sender decrease the rate of messages sent to a router or host. This message may be generated if a router or host does not have sufficient buffer space to process the request, or may occur if the router or host buffer is approaching its limit.
| 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Type = 4 | Code = 0 | Header Checksum | |||||||||||||||||||||||||||||
| Empty | |||||||||||||||||||||||||||||||
| IP Header + First 8 Bytes of Original Datagram's Data | |||||||||||||||||||||||||||||||
- Type must be set to 4.
- Code must be set to 0.
- The additional data is used by the sender to match the reply with the associated request.
Read more about ICMP Source Quench: Operation of Source Quench
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—Chinese proverb.
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Ascends in smoke and fire by day and night
The hate you died to quench and could but fan,
Sleep well and see no morning, son of man.”
—A.E. (Alfred Edward)