ip access-group
18-80 Security Configuration
Usage
ACLsmustbeappliedperroutinginterface.Anentry(rule)canbeappliedtoinboundframes
only.
Example
Thisexampleshowshowtoapplyaccesslist1forallinboundframesontheVLAN1interface.
Throughthedefinitionofaccesslist1,onlyframeswithasourceaddressonthe192.5.34.0/24
networkwillberouted.AlltheframeswithothersourceaddressesreceivedontheVLAN1
interface
aredropped:
C2(su)->router(Config)#access-list 1 permit 192.5.34.0 0.0.0.255
C2(su)->router(Config)#interface vlan 1
C2(su)->router(Config-if(Vlan 1))#ip access-group 1 in