L2LS - Network Address Translation Flashcards
What is Network Address Translation (NAT), and how is it typically used at the edge of a Leaf and Spine network?
Answer: Network Address Translation (NAT) is a technique used to modify network address information in packet headers while in transit. At the edge of a Leaf and Spine network, NAT is commonly used to hide the native IP addresses of servers or devices in the datacenter from the external network. This helps enhance security by obfuscating internal addressing and allows multiple internal devices to share a single external IP address.
Explanation: This question assesses the candidate’s understanding of NAT and its typical use at the edge of a Leaf and Spine network to enhance security and address management.
What are the potential advantages and disadvantages of employing NAT at the edge of a Leaf and Spine network for internal servers communicating with the external world?
Answer: The advantages of using NAT at the edge include improved security by masking internal IP addresses and conserving public IP addresses. However, it can introduce complexity, potential performance bottlenecks, and issues with maintaining stateful connections. Properly configured NAT is essential to mitigate the disadvantages and achieve the desired security and address management goals.
Explanation: This question evaluates the candidate’s ability to weigh the pros and cons of NAT implementation at the edge of a Leaf and Spine network and their understanding of the associated trade-offs.
