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Proxy ARP must not be enabled on the system.
Overview
| Finding ID | Version | Rule ID | IA Controls | Severity |
|---|---|---|---|---|
| V-22415 | GEN003608 | SV-38867r1_rule | ECSC-1 | Medium |
| Description |
|---|
| 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. |
| STIG | Date |
|---|---|
| AIX 6.1 SECURITY TECHNICAL IMPLEMENTATION GUIDE | 2017-12-08 |
Details
| Check Text ( C-37860r1_chk ) |
|---|
| 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 (F-33121r1_fix) |
|---|
| 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 |