What is a characteristic of a bridge group in a Cisco ASA firewall running in transparent mode?
Key Characteristics of ASA Firewall When Configured In Transparent Mode – The firewall bridges packets from one VLAN to the other instead of routing them. MAC lookups are performed instead of routing table lookups. Can run in single firewall context or in multiple firewall contexts.
What is bridge group in ASA?
A bridge group is a virtual interface that groups one or more interfaces. The main reason to group interfaces is to create a group of switched interfaces. Thus, you can attach workstations or other endpoint devices directly to the interfaces included in the bridge group.
How many interfaces per bridge group does an ASA bridge group deployment support?
As of 8.4(1) upto 8 bridge groups are supported with 2-4 interface in each group.
In which 2 modes does Asa work?
There are two modes in which you can have your firewall; routed or transparent mode. Each mode will treat the packets differently and operate in its own way.
What is transparent mode Cisco?
VTP Transport mode does not synchronize VLAN configuration information with other switches. This mode is used when you want to make the switch independent from current vlan structure. This mode has lowest impact when adding new switch to your switching topology.
What is ASA BVI?
BVI (Bridge Virtual Interface) is necessary to configure Bridge Groups in a transparent mode Firewall. ciscoasa(config)# interface bvI 1. Specify the management IP address for the bridge group.
What is BVI interface in Asa?
What Asa how it works?
When internal users make requests to the internet, an ASA saves session information so that when a valid response comes back, it can recognize and permit that traffic through. Stateful inspection is the mechanism that allows the ASA to do so.
How are bridge groups used in Cisco ASA?
With Integrated Routing and Bridging, you can use a “bridge group” where you group together multiple interfaces on a network, and the ASA uses bridging techniques to pass traffic between the interfaces. Each bridge group includes a Bridge Virtual Interface (BVI) to which you assign an IP address on the network.
Can you have more than one bridge group on ASA 5505?
Note Although you can configure multiple bridge groups on the ASA 5505, the restriction of 2 data interfaces in transparent mode on the ASA 5505 means you can only effectively use 1 bridge group. Each bridge group can include up to 4 interfaces.
How is layer 2 connectivity achieved in Cisco ASA?
Layer 2 connectivity is achieved by using a “bridge group” where you group together the inside and outside interfaces for a network, and the ASA uses bridging techniques to pass traffic between the interfaces. Each bridge group includes a Bridge Virtual Interface (BVI) to which you assign an IP address on the network.
What kind of IP address does Cisco ASA use?
Each bridge group requires a management IP address. The ASA uses this IP address as the source address for packets originating from the bridge group. The management IP address must be on the same subnet as the connected network. For IPv4 traffic, the management IP address is required to pass any traffic.