334
Chapter 6
Troubleshooting TCP/IP Connectivity
8
Source Host Isolated
9
Communication with Destination Network Is Adminis-
tratively Prohibited
10
Communication with Destination Host is Administra-
tively Prohibited
11
Destination Network Unreachable for Type of Service
12
Destination Host Unreachable for Type of Service
13
Communication Administratively Prohibited
14
Host Precedence Violation
15
Precedence Cutoff in Effect
4
Source
Quench
5
Redirect
0
Redirect Datagram for the Network
1
Redirect Datagram for the Host
2
Redirect Datagram for the Type of Service and
Network
3
Redirect Datagram for the Type of Service and Host
6
Alternate Host Address
8
Echo
9
Router
Advertisement
10
Router
Selection
11
Time
Exceeded
30
traceroute
T A B L E 6 . 3
ICMP Types and Codes (continued)
ICMP
Type
ICMP
Code
Description
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