Cisco ASA Series Cli Configuration Manual page 261

Chapter 1 Configuring Multiple Context Mode
Feature History for Multiple Context Mode
Table 1-5
Table 1-5 Feature History for Multiple Context Mode
Feature Name
Multiple security contexts
Automatic MAC address assignment
Resource management
Virtual sensors for IPS
Automatic MAC address assignment
enhancements
Maximum contexts increased for the ASA 5550
and 5580
Automatic MAC address assignment enabled by
default
lists each feature change and the platform release in which it was implemented.
Platform
Releases
7.0(1)
7.2(1)
7.2(1)
8.0(2)
8.0(5)/8.2(2)
8.4(1)
8.5(1)
Feature History for Multiple Context Mode
Feature Information
Multiple context mode was introduced.
We introduced the following commands: context, mode,
and class.
Automatic assignment of MAC address to context interfaces
was introduced.
We introduced the following command: mac-address auto.
Resource management was introduced.
We introduced the following commands: class,
limit-resource, and member.
The AIP SSM running IPS software Version 6.0 and above
can run multiple virtual sensors, which means you can
configure multiple security policies on the AIP SSM. You
can assign each context or single mode ASA to one or more
virtual sensors, or you can assign multiple security contexts
to the same virtual sensor.
We introduced the following command: allocate-ips.
The MAC address format was changed to use a prefix, to use
a fixed starting value (A2), and to use a different scheme for
the primary and secondary unit MAC addresses in a failover
pair. The MAC addresses are also now persistent across
reloads. The command parser now checks if auto-generation
is enabled; if you want to also manually assign a MAC
address, you cannot start the manual MAC address with A2.
We modified the following command: mac-address auto
prefix.
The maximum security contexts for the ASA 5550 was
increased from 50 to 100. The maximum for the ASA 5580
was increased from 50 to 250.
Automatic MAC address assignment is now enabled by
default.
We modified the following command: mac-address auto.
Cisco ASA Series CLI Configuration Guide
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