Command Manual – ACL
Quidway S3900 Series Ethernet Switches-Release 1510
Chapter 1 ACL Commands
Huawei Technologies Proprietary
1-12
established
“TCP
connection
established”
flag
Specifies that
the rule will
match TCP
connection
packets with the
ack
or
rst
flag
TCP-specific argument
If the protocol type is ICMP, you can also define the following information:
Table 1-7 ICMP-specific 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 0 to 255
icmp-code
: ICMP message
code, ranging 0 to 255
If the protocol type is ICMP, you can also directly input the ICMP message name after
the
icmp-type
argument. Table 1-8 describes some common ICMP messages.
Table 1-8 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