Allied Telesis AT-S63 - Manual (Page 847)

AT-S63 Management Software Menus Interface User’s Guide
Section VIII: Management Security 847
Mask
You need to enter a mask that indicates the parts of the IP address the
switch should filter on. A binary “1” indicates the switch should filter on the
corresponding bit of the address, while a “0” indicates that it should not. If
you are filtering on a specific IP address, use the mask 255.255.255.255.
If you are filtering on a subnet, the mask would depend on the address.
For example, to allow all management stations in the subnet 149.11.11.0
to manage the switch, you would enter the mask 255.255.255.0.
Application
The application parameter allows you control whether the remote
management station can manage the switch using Telnet, a web browser,
or both. For example, you might create an ACE that states that a particular
remote management station can only use a web browser to manage the
switch. You can also use this option to control whether the management
station can ping the switch.
Management
ACL Guidelines
Below are guidelines to observe when you create a management ACL:
ˆ The default setting for this feature is disabled.
ˆ A switch has only one management ACL.
ˆ A management ACL can have up to 256 ACEs.
ˆ An ACE must have an IP address and mask.
ˆ All management ACEs are implicit “permit” statements. A management
packet that meets the criteria of an ACE is accepted by the switch.
Consequently, the ACEs you enter into the management ACL should
specify which management packets you want the switch to process.
Management packets that do not meet any of the ACEs in the
management ACL are discarded.
ˆ A management packet that meets an ACE is immediately processed
by the switch and is not compared against any remaining ACEs in the
management ACL.
ˆ The ACEs are performed in the order of their identification number,
starting with 1.
ˆ The management ACL does not control local management or remote
SSH or SNMP management of a switch.
ˆ Activating this feature without specifying any ACEs prohibits you from
managing the switch remotely using a Telnet application or web
browser because the switch discards all Telnet and web browser
management packets.
ˆ You can apply management ACLs to both master and slave switches
in an enhanced stack. A management ACL on a master switch filters
management packets intended for the master switch as well as those
intended for any slave switches that you manage through the master