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21-3
Cisco MDS 9000 Family Troubleshooting Guide, Release 3.x
OL-9285-05
Chapter 21 Troubleshooting IP Access Lists
Overview
ICMP Information
IP packets can be filtered based on the following optional ICMP conditions:
• The icmp-type: The ICMP message type is a number from 0 to 255.
• The icmp-code: The ICMP message code is a number from 0 to 255.
Table 21-2 displays the value for each ICMP type.
ToS Information
IPv4 packets can be filtered based on the ToS conditions—delay, monetary-cost, normal-service,
reliability, and throughput.
TCP
1
ftp 20
ftp-data 21
ssh 22
telnet 23
smtp 25
tasacs-ds 65
www 80
sftp 115
http 143
wbem-http 5988
wbem-https 5989
1. If the TCP connection is already established, use the established option to find matches. A match occurs if the SYN flag is
not set in the TCP datagram.
Table 21-1 TCP and UDP Port Numbers for IPv4 (continued)
Protocol Port Number
Table 21-2 ICMP Type Value
ICMP Type Code
echo 8
echo-reply 0
unreachable 3
redirect 5
time exceeded 11
traceroute 30
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