A rogue DHCP server is an unauthorized DHCP server on a network, which can assign IP addresses to devices without proper control, leading to IP address conflicts.
Impact of a Rogue DHCP Server:
IP Address Conflicts: Multiple devices may receive the same IP address from different DHCP servers, causing network connectivity issues.
Network Disruption: Devices may be assigned incorrect network configuration settings, disrupting network services and connectivity.
Comparison with Other Attacks:
DNS poisoning: Alters DNS records to redirect traffic to malicious sites, but does not cause IP address conflicts.
Social engineering: Involves manipulating individuals to gain unauthorized access or information, not directly related to IP address conflicts.
Denial-of-service (DoS): Floods a network or service with excessive traffic to disrupt operations, but does not cause duplicate IP addresses.
Prevention and Detection:
Implement network access control measures to prevent unauthorized devices from acting as DHCP servers.
Use DHCP snooping on switches to allow DHCP responses only from authorized DHCP servers.
[References:, CompTIA Network+ study materials on network security threats and mitigation techniques., , , ]
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