3Com Switch 7750 Series
Command Reference Guide – ACL Chapter 1 ACL Commands
1-20
Table 1-14 ICMP messages
Name ICMP TYPE ICMP CODE
echo Type=8 Code=0
echo-reply Type=0 Code=0
fragmentneed-DFset Type=3 Code=4
host-redirect Type=5 Code=1
host-tos-redirect Type=5 Code=3
host-unreachable Type=3 Code=1
information-reply Type=16 Code=0
information-request Type=15 Code=0
net-redirect Type=5 Code=0
net-tos-redirect Type=5 Code=2
net-unreachable Type=3 Code=0
parameter-problem Type=12 Code=0
port-unreachable Type=3 Code=3
protocol-unreachable Type=3 Code=2
reassembly-timeout Type=11 Code=1
source-quench Type=4 Code=0
source-route-failed Type=3 Code=5
timestamp-reply Type=14 Code=0
timestamp-request Type=13 Code=0
ttl-exceeded Type=11 Code=0
Description
Use the rule command to define an ACL rule.
Use the undo rule command to delete an ACL rule or the attribute information of an
ACL rule.
Before you can delete a rule, you need to specify the rule ID. If you do not know the
rule ID, you can view it by the display acl command.
In the case that you specify the rule ID when defining a rule:
z If the rule corresponding to the specified rule ID already exists, you will edit the
rule, and the modified part in the rule will replace the original content, while other
parts remain unchanged.