What is IP Spoofing and how can networks defend against it?
This question addresses network security vulnerabilities involving fake source IP addresses. It tests knowledge of attack vectors and mitigation techniques.
Why Interviewers Ask This
IP spoofing is a common technique used in DDoS attacks and unauthorized access attempts. Interviewers ask this to assess your ability to identify and prevent security breaches. Understanding this helps in designing resilient network architectures for large-scale platforms.
How to Answer This Question
Define IP spoofing as forging source addresses. Explain its use in DDoS and session hijacking. Discuss defense mechanisms like ingress filtering, BCP38, and cryptographic authentication. Emphasize the importance of validating packet origins.
Key Points to Cover
- Definition of spoofing
- DDoS association
- Ingress filtering
- Cryptographic defenses
Sample Answer
IP spoofing involves creating IP packets with a false source address to hide the sender's identity or impersonate another system. Attackers use this to launch DDoS attacks or bypass access controls. Defenses include ingr…
Common Mistakes to Avoid
- Confusing with MAC spoofing
- Overlooking BCP38 standard
- Not mentioning TCP protections
Sound confident on this question in 5 minutes
Answer once and get a 30-second AI critique of your structure, content, and delivery. First attempt is free — no signup needed.