I'm wanting to block a range of ip addresses on my Cisco ASA 5520 (8.2) using ASDM 6.4.

In the help files/cisco documentation, it says, just create a network object with a "range" type, and use that in a blocking access rule...

When I'm accessing the ASA (8.2) with ASDM 6.4, I go to config>firewall>object>network objects & groups, then click "add" to add the IP range as a "network object", I get the following 4 fields to fill out:

Name: IP address: Netmask: Description:

That's all... In the context-sensitive help files, it says that there should be a Type drop-down to select, with "range" being one of the options, but there is no "Type" drop-down list...

If I try to create a "network object group" instead of just "network object", then I get a "Type" drop down list, but it only contains two options: network & host (No "Range" option here either)

Can someone help me figure out how to block a range of IP's, using the current 8.2 version on the ASA?

Thanks for any pointers or tips!