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A
CCESS
C
ONTROL
L
IST
C
OMMANDS
4-119
Related Commands
permit, deny 4-119
ip access-group (4-129)
show ip access-list (4-123)
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.
Summary of Contents for 8648T - annexe 1
Page 2: ......
Page 34: ...INTRODUCTION 1 10 ...
Page 48: ...INITIAL CONFIGURATION 2 14 ...
Page 159: ...PORT CONFIGURATION 3 111 Figure 3 48 Displaying Etherlike and RMON Statistics ...
Page 411: ...DNS COMMANDS 4 167 ...
Page 536: ...COMMAND LINE INTERFACE 4 291 ...
Page 542: ...TROUBLESHOOTING B 2 ...
Page 555: ......