ACL Configuring
Table 18-6 Detailed parameters of extended ACL as below: Table 18-6
A number in the range of 1 to 255
Represented by name, you can select
GRE, ICMP, IGMP, IPinIP, OSPF, TCP,
UDP
ACL rules specified
the source address
information
sour-address sour-wildcard used to
determine the packet's source IP
address. Dotted decimal notation;
sour-wildcard of 0 means that the host
address
The purpose of ACL
rules specified
address information
dest-addr dest-wildcard used to
determine the packet destination
address, in dotted decimal notation;
dest-wildcard is 0, the host address
Any is any destination address.
priority precedence
message
IP precedence values range from 0 to 7
ToS priority ranges from 0 to 15
Rule applies only to non-first fragment
packet effective
Level ranges from 0
to 63
fragment
fragmentation
information
18.4.2 Configuration Procedure
!Create extended ACL based on digital identification to deny the FTP packets with source
address 10.0.0.1 .
Switch#configure terminal
Switch(config)#access-list 100 deny tcp 10.0.0.1 0 ftp any
!Create extended ACL based on name identification to deny the FTP packets with source
address 10.0.0.1.
Switch#configure terminal
Switch (config)#access-list extended extacl
Switch(config-ext-nacl-extacl)#deny tcp 10.0.0.2 0 ftp any