Cisco ASA Series Cli Configuration Manual page 301

Chapter 1 Configuring a Cluster of ASAs
Command
Transparent Mode:
bridge-group number
Example:
hostname(config-if)# bridge-group 1
Step 12
security-level number
Example:
hostname(config-if)# security-level 50
Step 13
mac-address mac_address
Example:
hostname(config-if)# mac-address
000C.F142.4CDE
What to Do Next
Configure the master unit bootstrap settings. See the
section on page
Configuring the Master Unit Bootstrap Settings
Each unit in the cluster requires a bootstrap configuration to join the cluster. Typically, the first unit you
configure to join the cluster will be the master unit. After you enable clustering, after an election period,
the cluster elects a master unit. With only one unit in the cluster initially, that unit will become the master
unit. Subsequent units that you add to the cluster will be slave units.
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1-37.
Prerequisites, page 1-38
Enabling the Cluster Control Link Interface, page 1-38
Configuring Basic Bootstrap Settings and Enabling Clustering, page 1-40
Configuring Advanced Clustering Settings, page 1-42
Examples, page 1-43
Purpose
Assigns the interface to a bridge group, where number is an
integer between 1 and 100. You can assign up to four interfaces to
a bridge group. You cannot assign the same interface to more than
one bridge group. Note that the BVI configuration includes the
IP address.
Sets the security level, where number is an integer between 0
(lowest) and 100 (highest). See the
page 1-1.
You must configure a MAC address for a Spanned EtherChannel
so that the MAC address does not change when the current master
unit leaves the cluster; with a manually-configured MAC address,
the MAC address stays with the current master unit.
In multiple context mode, if you share an interface between
contexts, auto-generation of MAC addresses is enabled by
default, so you only need to set the MAC address manually for a
shared interface if you disable auto-generation. Note that you
must manually configure the MAC address for non-shared
interfaces.
The mac_address is in H.H.H format, where H is a 16-bit
hexadecimal digit. For example, the MAC address
00-0C-F1-42-4C-DE is entered as 000C.F142.4CDE.
The first two bytes of a manual MAC address cannot be A2 if you
also want to use auto-generated MAC addresses.
"Configuring the Master Unit Bootstrap Settings"
Cisco ASA Series CLI Configuration Guide
Configuring ASA Clustering
"Security Levels" section on
1-37