ZyXEL Communications MAX-306, Руководство пользователя, Страница: 239 / 405

Chapter 19 The Logs Screens
User’s Guide
239
Table 106 ICMP Notes
TYPE CODE DESCRIPTION
0
Echo Reply
0
Echo reply message
3
Destination Unreachable
0
Net unreachable
1
Host unreachable
2
Protocol unreachable
3
Port unreachable
4
A packet that needed fragmentation was dropped because it was set
to Don't Fragment (DF)
5
Source route failed
4
Source Quench
0
A gateway may discard internet datagrams if it does not have the
buffer space needed to queue the datagrams for output to the next
network on the route to the destination network.
5
Redirect
0
Redirect datagrams for the Network
1
Redirect datagrams for the Host
2
Redirect datagrams for the Type of Service and Network
3
Redirect datagrams for the Type of Service and Host
8
Echo
0
Echo message
11
Time Exceeded
0
Time to live exceeded in transit
1
Fragment reassembly time exceeded
12
Parameter Problem
0
Pointer indicates the error
13
Timestamp
0
Timestamp request message
14
Timestamp Reply
0
Timestamp reply message
15
Information Request
0
Information request message
16
Information Reply
0
Information reply message