Cisco Certified Internetwork Expert (CCIE) Practice Test

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Enhance your networking skills with the Cisco Certified Internetwork Expert Test. Tackle challenging questions and get detailed explanations. Prepare effectively to excel in your CCIE certification exam!

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Which three commands can you use to configure VXLAN on a Cisco ASA firewall?

default-mcast-group
set ip next-hop verify-availiability
segment-id
inspect vxlan

The correct answer is: default-mcast-group

To configure VXLAN (Virtual Extensible LAN) on a Cisco ASA firewall, one effective command is the default-mcast-group. This command is essential because it allows you to specify the multicast group address used for VXLAN traffic, which plays a crucial role in the encapsulation and transmission of the Layer 2 Ethernet frames over Layer 3 networks. By defining a default multicast group, you ensure that all VXLAN segments can correctly address and send their traffic, which is foundational to the functionality of VXLAN. Using multicast for VXLAN is significant as it allows for efficient replication of broadcast, unknown unicast, and multicast traffic within a VXLAN segment without overwhelming the network. Proper configuration of the multicast group is critical for establishing the desired communication patterns between endpoints in different VXLAN segments. In addition to the default-mcast-group, other commands like segment-id help in identifying the specific VXLAN segment (often referred to as a Virtual Network Identifier, or VNI), and the inspect vxlan command is used for traffic inspection. However, the choice of default-mcast-group directly relates to configuring multicast requirements, making it a primary command for setting up VXLAN functionality on the Cisco ASA firewall.