C
OMMAND
L
INE
I
NTERFACE
4-118
to indicate “match” and 0 bits to indicate “ignore.” The bitmask is
bitwise ANDed with the specified source IP address, and then
compared with the address for each IP packet entering the port(s) to
which this ACL has been assigned.
Example
This example configures one permit rule for the specific address 10.1.1.21
and another rule for the address range 168.92.16.x – 168.92.31.x using a
bitmask.
Related Commands
access-list ip (3-116)
permit
,
deny
(Extended ACL)
This command adds a rule to an Extended IP ACL. The rule sets a filter
condition for packets with specific source or destination IP addresses,
protocol types, source or destination protocol ports, or TCP control codes.
Use the
no
form to remove a rule.
Syntax
[
no
] {
permit | deny
}
[
protocol
-
number |
udp
]
{
any
|
source address-bitmask |
host
source
}
{
any
|
destination address-bitmask |
host
destination
}
[
precedence
precedence
] [
tos
tos
] [
dscp
dscp
]
[
source-port
sport
[
bitmask
]] [
destination-port
dport
[
port
-
bitmask
]]
[
no
] {
permit | deny
}
tcp
{
any
|
source address-bitmask |
host
source
}
{
any
|
destination address-bitmask |
host
destination
}
[
precedence
precedence
] [
tos
tos
] [
dscp
dscp
]
[
source-port
sport
[
bitmask
]] [
destination-port
dport
[
port
-
bitmask
]]
[
control-flag
control-flags
flag-bitmask
]
Console(config-std-acl)#permit host 10.1.1.21
Console(config-std-acl)#permit 168.92.16.0 255.255.240.0
Console(config-std-acl)#
Summary of Contents for 8612XL3
Page 2: ......
Page 26: ...CONTENTS xxvi ...
Page 40: ...INTRODUCTION 1 14 ...
Page 69: ...BASIC CONFIGURATION 3 15 ...
Page 175: ...PORT CONFIGURATION 3 121 ...
Page 337: ...IP ROUTING 3 283 Web Click Routing Protocol RIP Statistics ...
Page 379: ...MULTICAST ROUTING 3 325 Command Usage ...
Page 396: ...CONFIGURING THE SWITCH 3 342 ...
Page 582: ...COMMAND LINE INTERFACE 4 186 ...
Page 806: ... 224 Command Mode Privileged Exec Example Console clear vrrp 1 interface 1 counters Console ...
Page 826: ... 6 ...
Page 828: ...TROUBLESHOOTING B 2 ...
Page 838: ...GLOSSARY Glossary 10 ...
Page 845: ......