The DHCP client must be disabled if not needed.

From AIX 5.3 Security Technical Implementation Guide

Associated with IA controls: ECSC-1

Associated with: CCI-000366

SV-38931r1_rule The DHCP client must be disabled if not needed.

Vulnerability discussion

DHCP allows for the unauthenticated configuration of network parameters on the system by exchanging information with a DHCP server.

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Fix text

Disable the system's DHCP client. Edit /etc/rc.tcpip, comment out the line starting dhcpcd. Reboot the system to ensure the DHCP client has been disabled fully. Configure a static IP for the system, if network connectivity is required.

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