IP Spoofing is a technique where an attacker falsifies the source IP address in network packets to impersonate another device or bypass network restrictions.

How IP Spoofing Works

• The attacker manipulates the header of packets to insert a fake source IP.
• The target believes the packet comes from a trusted network and responds accordingly.
• Commonly used in DDoS attacks, session hijacking, or man-in-the-middle attacks.

Monitoring and Prevention

• Configure ingress and egress filters on routers.
• Verify TCP connections using proper handshakes (e.g., SYN cookies).
• Implement BCP 38 (egress filtering) on ISPs or large networks.
• Use firewalls and IDS/IPS systems to block suspicious patterns.

Impact of IP Spoofing

• Your My IP address can be impersonated by attackers.
• Can be used in email spoofing, service resource exhaustion, or network disruption.
• Both IPv4 and IPv6 can be spoofed; mitigation differs slightly.

FAQ

• How can I detect IP Spoofing? — Analyze unusual traffic patterns, mismatched response sequences, and logs.
• What to do if my My IP is targeted? — Collect logs, notify your ISP/hosting provider, and block or remediate suspicious traffic.
• How can regular users prevent it? — Change default router passwords, keep firewall enabled, and avoid opening remote access for unknown services.
• Is IPv6 spoofing different? — The concept is the same, but IPv6 requires separate filtering and policies.