Proxy ARP must not be enabled on the system.

From AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE

Associated with IA controls: ECSC-1

Associated with: CCI-001551

SV-38867r1_rule Proxy ARP must not be enabled on the system.

Vulnerability discussion

Proxy ARP allows a system to respond to ARP requests on one interface on behalf of hosts connected to another interface. If this function is enabled when not required, addressing information may be leaked between the attached network segments.

Check content

Determine if the system has proxy ARP enabled. Check Content: Check the system for non-local published ARP entries. # arp -a If any entries are listed as published, this is a finding.

Fix text

Remove any non-local published ARP entries. # arp -d < host > Check system initialization scripts for any commands configuring published ARP entries (such as "arp -s pub") and remove them.

Pro Tips

Lavender hyperlinks in small type off to the right (of CSS class id, if you view the page source) point to globally unique URIs for each document and item. Copy the link location and paste anywhere you need to talk unambiguously about these things.

You can obtain data about documents and items in other formats. Simply provide an HTTP header Accept: text/turtle or Accept: application/rdf+xml.