559
Configuring Network Security with ACLs
How to Configure Network Security with ACLs
Creating Named Standard and Extended ACLs
Using Time Ranges with ACLs
Repeat the steps if you have multiple items that you want in effect at different times.
Command
Purpose
1.
configure terminal
Enters global configuration mode.
2.
ip access-list standard
name
or
ip access-list extended
name
Defines a standard IPv4 access list using a name, and enters
access-list configuration mode.
The name can be a number from 1 to 99.
or
Defines an extended IPv4 access list using a name, and enters
access-list configuration mode.
The name can be a number from 100 to 199.
3.
{deny | permit}
{
source
[
source-wildcard
] |
host
source
|
any
} [
log
]
or
{
deny
|
permit
}
protocol
{
source
[
source-wildcard
] |
host
source
|
any
}
{
destination
[
destination-wildcard
] |
host
destination
|
any
} [
precedence
precedence
]
[
tos
tos
] [
established
] [
log
] [
time-range
time-range-name
]
In access-list configuration mode, specifies one or more
conditions denied or permitted to decide if the packet is forwarded
or dropped.
host
source
—A source and source wildcard of
source
0.0.0.0.
any
—A source and source wildcard of 0.0.0.0
255.255.255.255.
or
In access-list configuration mode, specify the conditions allowed
or denied. Use the
log
keyword to get access list logging
messages, including violations.
Creating a Numbered Extended ACL, page 555
for definitions
of protocols and other keywords.
host
source
—A source and source wildcard of
source
0.0.0.0.
host
destination
—A destination and destination wildcard of
destination
0.0.0.0.
any
—A source and source wildcard or destination and
destination wildcard of 0.0.0.0 255.255.255.255.
4.
end
Returns to privileged EXEC mode.
Содержание IE 4000
Страница 12: ...8 Configuration Overview Default Settings After Initial Switch Configuration ...
Страница 52: ...48 Configuring Interfaces Monitoring and Maintaining the Interfaces ...
Страница 108: ...104 Configuring Switch Clusters Additional References ...
Страница 128: ...124 Performing Switch Administration Additional References ...
Страница 130: ...126 Configuring PTP ...
Страница 140: ...136 Configuring CIP Additional References ...
Страница 146: ...142 Configuring SDM Templates Configuration Examples for Configuring SDM Templates ...
Страница 192: ...188 Configuring Switch Based Authentication Additional References ...
Страница 244: ...240 Configuring IEEE 802 1x Port Based Authentication Additional References ...
Страница 274: ...270 Configuring SGT Exchange Protocol over TCP SXP and Layer 3 Transport Configuring Cisco TrustSec Caching ...
Страница 298: ...294 Configuring VLANs Additional References ...
Страница 336: ...332 Configuring STP Additional References ...
Страница 408: ...404 Configuring DHCP Additional References ...
Страница 450: ...446 Configuring IGMP Snooping and MVR Additional References ...
Страница 490: ...486 Configuring SPAN and RSPAN Additional References ...
Страница 502: ...498 Configuring Layer 2 NAT ...
Страница 559: ...555 Configuring Network Security with ACLs How to Configure Network Security with ACLs Creating a Numbered Extended ACL ...
Страница 770: ...766 Configuring IPv6 MLD Snooping Related Documents ...
Страница 930: ...926 Configuring IP Unicast Routing Related Documents ...
Страница 956: ...952 Configuring IPv6 Unicast Routing Configuring IPv6 network 2010 AB8 2 48 network 2010 AB8 3 48 exit address family ...
Страница 976: ...972 Configuring Cisco IOS IP SLAs Operations Additional References ...
Страница 978: ...974 Dying Gasp ...
Страница 990: ...986 Configuring Enhanced Object Tracking Monitoring Enhanced Object Tracking ...
Страница 994: ...990 Configuring MODBUS TCP Displaying MODBUS TCP Information ...
Страница 996: ...992 Ethernet CFM ...
Страница 1030: ...1026 Working with the Cisco IOS File System Configuration Files and Software Images Working with Software Images ...
Страница 1066: ...1062 Using an SD Card SD Card Alarms ...