H3C Technologies H3C S3100 Series Switches User Manual
Page 386

Operation Manual – ACL
H3C S3100-52P Ethernet Switch
Chapter 1 ACL Configuration
1-10
Parameter
Type
Function
Description
established
TCP
connection
flag
Specifies that
the rule applies
to TCP packets
with the ack or
rst
flag (Packets
of this type are
TCP connection
packets.)
TCP-specific argument
If the protocol type is ICMP, you can also define the information listed in Table 1-9.
Table 1-9
ICMP-specific ACL rule information
Parameter
Type
Function
Description
icmp-type
icmp-type
icmp-code
Type and
message
code
information
of ICMP
packets
Specifies the
type and
message code
information of
ICMP packets in
the rule
icmp-type
: ICMP message
type, ranging from 0 to 255
icmp-code
: ICMP message
code, ranging from 0 to 255
If the protocol type is ICMP, you can also just input the ICMP message name after the
icmp-type
keyword. Table 1-10 lists some common ICMP messages.
Table 1-10
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