Access Control List Commands
4-145
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
access-list ip (4-144)
Console(config-std-acl)#permit host 10.1.1.21
Console(config-std-acl)#permit 168.92.16.0 255.255.240.0
Содержание 8126PL2-F
Страница 1: ...MANAGEMENT GUIDE ta TigerSwitchTM 10 100 1000 L2 Lite SMB PoE Gigabit Switch SMC8126PL2 F ...
Страница 2: ......
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Страница 22: ...Contents xxii ...
Страница 26: ...Tables xxvi ...
Страница 48: ...Initial Configuration 2 10 2 ...
Страница 117: ...User Authentication 3 69 3 Web Click Security AAA Summary Figure 3 43 AAA Accounting Summary ...
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Страница 604: ...Glossary Glossary 8 ...
Страница 612: ...Index 8 Index ...
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Страница 614: ...149100000023A R01 SMC8126PL2 F ...