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

 lists the new features for ASA interim Version 8.4(1.11)/ASDM Version 6.4(2).

We recommend that you upgrade to a Cisco.com-posted 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 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.

ASA-Tandberg 
Interoperability with 
H.323 Inspection

H.323 Inspection now supports uni-directional signaling for two-way video sessions. This 
enhancement allows H.323 Inspection of one-way video conferences supported by Tandberg video 
phones. Supporting uni-directional signaling allows Tandberg phones to switch video modes (close 
their side of an H.263 video session and reopen the session using H.264, the compression standard 
for high-definition video). 

We did not modify any screens.

Timeout for connections 
using a backup static 
route

When multiple static routes exist to a network with different metrics, the adaptive security 
appliance uses the one with the best metric at the time of connection creation. If a better route 
becomes available, then this timeout lets connections be closed so a connection can be 
reestablished to use the better route. The default is 0 (the connection never times out). To take 
advantage of this feature, change the timeout to a new value.

We modified the following screen: Configuration > Firewall > Advanced > Global Timeouts.