ADTRAN 5000 Series - Manual (Page 855)

Command Reference Guide Loopback Interface Configuration Command Set
61200990L1-35E Copyright © 2005 ADTRAN 855
ip access-group [in | out]
Use the ip access-group command to create an access list to be used for packets transmitted on or received
from the specified interface. Use the no form of this command to disable this type of control.
Syntax Description
Specifies IP access list name.
in Enables access control on packets received on the specified interface.
out Enables access control on packets transmitted on the specified interface.
Default Values
By default, these commands are disabled.
Applicable Platforms
This command applies to the NetVanta 300, 1000, 1000R, 2000, 3000, 4000, and 5000 and
Total Access 900 Series units.
Command History
Release 3.1 Command was introduced.
Functional Notes
When this command is enabled, the IP destination address of each packet must be validated before being
passed through. If the packet is not acceptable per these settings, it is dropped.
Usage Examples
The following example sets up the router to allow only Telnet traffic into the loopback interface:
(config)#ip access-list extended TelnetOnly
(config-ext-nacl)#permit tcp any any eq telnet
(config-ext-nacl)#interface loopback 1
(config-loop 1)#ip access-group TelnetOnly in