Contents
What is a bridge group interface?
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. You typically configure a DHCP server on the bridge group interface (BVI), which provides IP addresses for any endpoints connected through member interfaces.
How many interfaces per bridge group does an ASA bridge group deployment support?
4 interfaces
You can create up to 250 bridge groups, with 4 interfaces per bridge group. Each directly-connected network must be on the same subnet. The ASA does not support traffic on secondary networks; only traffic on the same network as the BVI IP address is supported.
What is Cisco bridge group?
The bridge-group command is used to configure a Cisco device to bridge traffic between two interfaces. In your configuration above traffic is being bridged between physical ethernet interfaces and tunnel interfaces.
What is meant by and the purpose of bridged virtual interface BVI on the access point?
Description. The Bridge-Group Virtual Interface (BVI) becomes available on routers when the bridge irb command has been given. This interface allows the router to route and bridge the same protocol over the same interface. The bridge group-number must match the bridge group defined for the bridge.
What is fallback bridging?
Fallback Bridging Overview. With fallback bridging, the switch bridges together two or more VLANs or routed ports, essentially connecting multiple VLANs within one bridge domain. The switch runs the bridge group and treats the SVIs and routed ports in the bridge group as its spanning-tree ports.
How do I change firewall mode in Asa?
In configuration mode, execute the command firewall transparent:
- ASA# conf t. ASA(config)# firewall transparent. Step 2 –
- ASA(config)# interface Ethernet 0/0. ASA(config-if)# switchport access vlan 10. ASA(config-if)# no shutdown.
- ASA(config-if)# interface vlan 10. ASA(config-if)# nameif outside.
What is a transparent firewall?
A transparent firewall, also known as a bridge firewall, is a Layer 2 application that installs easily into an existing network without modifying the Internet Protocol (IP) address. The transparent firewall is not a routed hop but instead acts as a bridge by inspecting and moving network frames between interfaces.
What are bridge domains?
A bridge domain is a set of logical ports that share the same flooding or broadcast characteristics. Like a virtual LAN (VLAN), a bridge domain spans one or more ports of multiple devices. You can also group one or more bridge domains within a single instance, or virtual switch.
What is the bridge Group Command in Cisco?
The bridge-group command is used to configure a Cisco device to bridge traffic between two interfaces. In your configuration above traffic is being bridged between physical ethernet interfaces and tunnel interfaces.
How are Ethernet subinterfaces mapped to bridge groups?
Ethernet subinterfaces are also mapped to bridge groups. BVI1 is assigned an IP address tied to bridge group 1. This configuration keeps wireless traffic belonging to one SSID isolated from traffic belonging to the other as it transits the access point from the wired interface to the wireless interface and vice versa.
Which is an example of a bridge group?
In your configuration above traffic is being bridged between physical ethernet interfaces and tunnel interfaces. So if, for example, you wanted to join two LANs – connected via a routers and a serial link between them – together. you would configure the LAN and WAN interface on each router to be part of the same bridge-group.
Is there such a thing as a bridging interface?
So in this situation both interfaces are bridging, there is one broadcast domain which includes both interfaces, and you could telnet (or ping or whatever) to 10.1.1.5 or to 10.1.1.6. We most often associate bridging with the various Ethernet interfaces (Ethernet, FastEthernet, etc), but bridging is supported on other kinds of interfaces as well.