Chapter 1 Overview
1-54
No.
Item
Specifications
3.2.22.5
UDP[RFC0768]
Length
Source port
Destination port
Checksum
Source Port(16 bits): User-defined
Destination Port(16 bits): User-defined
Length (16 bits): Auto
Checksum (16 bits): Auto
3.2.22.6
IGMP[RFC2236]
Group Address
Checksum
Type
Max Response time
Type (4 bits): 11- Membership query
12- Version1 Membership report
16- Version2 Membership report
17- Leave group
Max response time (8 bits): User-defined
Checksum (16 bits): Auto
Group address (32 bits): User-defined
Version: set to 2
3.2.22.7
ICMP
[RFC792,950,1256]
Data
Checksum
Type
Code
Data
Type (8 bits):
0- Reply
3- Destination Unreachable
4- Source Quench
5- Redirect
8- Echo
9- Router Advertisement
10- Router Selection
11- Time Exceeded
12- Parameter Program
13- Time Stamp
14- Time Stamp Reply
15- Information Request