Command Line Interface
4-178
4
permit
,
deny
(Standard ACL)
This command adds a rule to a Standard IP ACL. The rule sets a filter condition for
packets emanating from the specified source. Use the
no
form to remove a rule.
Syntax
[
no
]
{
permit | deny
}
{
any
|
source bitmask |
host
source
}
•
any
– Any source IP address.
•
source
– Source IP address.
•
bitmask
– Decimal number representing the address bits to match.
•
host
– Keyword followed by a specific IP address.
Default Setting
None
Command Mode
Standard ACL
Command Usage
• New rules are appended to the end of the list.
• Address bitmasks are similar to a subnet mask, containing four integers from
0 to 255, each separated by a period. The binary mask uses 1 bits 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
Console(config-std-acl)#permit host 10.1.1.21
Console(config-std-acl)#permit 168.92.16.0 255.255.240.0
Содержание iES4028F
Страница 1: ...iES4028F 4028FP 4024GP ...
Страница 2: ...iES4028F iES4028FP iES4024GP E082008 ST R03 149100041800A 149100040200A 149100041700A 149100000020A ...
Страница 4: ...iv This page is intentionally left blank ...
Страница 10: ...x This page is intentionally left blank ...
Страница 28: ...Contents xxviii This page is intentionally left blank ...
Страница 32: ...Tables xxxii This page is intentionally left blank ...
Страница 46: ...Introduction 1 10 1 This page is intentionally left blank ...
Страница 336: ...Configuring the Switch 3 280 3 This page is intentionally left blank ...
Страница 688: ...Command Line Interface 4 352 4 This page is intentionally left blank ...
Страница 702: ...Glossary Glossary 8 This page is intentionally left blank ...
Страница 710: ...Index 8 Index This page is intentionally left blank ...
Страница 711: ...This page is intentionally left blank ...
Страница 712: ...iES4028F 4028FP 4024GP ...