Our ASA 5510 is running 8.0(5). We recently upgraded the license from base to security plus. By doing so the capacity of the the external port Ethernet0/0 and Ethernet0/1 should increase from the original FE to GE. But, we were still seeing 100 Mbps ...

Is there any gotcha upgrading from 8.0(5) to 8.3(2)? Is it safe? Does all the commands in 8.3(2) backward compatiable with 8.0(5)?

Has someone written a document or best practice white paper to prevent DoS attack on ASA. What commands should be configured to prevent it etc. Thanks in advance for any help.

We have been told by our hosting vendor that they can't collect CPU and memory utilization on Cisco ASA's"This is currently not possible as the ASA version 8.0(5) does not support the HostResource.MIB."- Can the CPU and memory information be collecte...