22 
2 Commands for logging in to an 
access controller 
acl (user interface view) 
Syntax 
For common and advanced ACLs: 
acl [ ipv6 ] acl-number { inbound | outbound } 
undo acl [ ipv6 ] acl-number { inbound | outbound } 
For WLAN and Layer 2 ACLs: 
acl acl-number inbound 
undo acl acl-number inbound 
View 
User interface view 
Default Level 
2: System level 
Parameters 
ipv6: Indicates IPv6 is supported. If this keyword is not specified, IPv4 is supported. 
Support for this keyword depends on the device model. 
acl-number: Number of access control list (ACL). The value is in the following range: 
  100 to 199: WLAN ACL 
   2000 to 2999: Basic ACL 
  3000 to 3999: Advanced ACL 
  4000 to 4999: Layer 2 ACL 
inbound: Restricts the Telnet or SSH connection established by using the VTY user 
interface. If the received packets for establish a Telnet or SSH connection match the 
ACL rule, the connection is established. When the device functions as a Telnet or SSH 
server, this keyword is used to restrict the Telnet or SSH client.  
outbound: Restricts the Telnet connection established by using the VTY user interface. If 
the packets sent for establishing a Telnet connection match the ACL rule, the