Cisco Cisco ASA 5555-X Adaptive Security Appliance 發佈版本通知

 lists the new features for ASA interim Version 8.3(2.25)/ASDM Version 6.4(5.106).

We recommend that you upgrade to a Cisco.com-posted ASA interim release only if you have a specific 
problem that it resolves. If you decide to run an interim release in a production environment, keep in 
mind that only targeted testing is performed on interim releases. Interim releases are fully supported by 
Cisco TAC and will usually remain on the download site only until the next maintenance release is 
available. If you choose to run an interim release, we strongly encourage you to upgrade to a fully-tested 
maintenance or feature release when it becomes available.

We will document interim release features at the time of the next maintenance or feature release. For a 
list of resolved caveats for each ASA interim release, see the interim release notes available on the 
Cisco.com software download site.

Compression for DTLS and 
TLS

To improve throughput, Cisco now supports compression for DTLS and TLS on AnyConnect 
3.0 or later. Each tunneling method configures compression separately, and the preferred 
configuration is to have both SSL and DTLS compression as LZS. This feature enhances 
migration from legacy VPN clients. 

Using data compression on high speed remote access connections passing highly 
compressible data requires significant processing power on the ASA. With other 
activity and traffic on the ASA, the number of sessions that can be supported on the 
platform is reduced.

We modified the following screen: Configuration > Remote Access VPN > Clientless SSL 
VPN Access > Group Policies > Edit > Edit Internal Group Policy > Advanced > AnyConnect 
Client > SSL Compression.

Regular expression 
matching for the show asp 
table classifier and show 
asp table filter commands

You can now enter the show asp table classifier and show asp table filter commands with a 
regular expression to filter output. 

We modified the following commands: show asp table classifier match regex, show asp table 
filter match regex.

ASDM does not support this command; enter the command using the Command Line Tool.