Disable Proxy ARP on all Layer 3 Interfaces

보통레벨 1자동cisco-nxos

설명

Proxy ARP is the technique in which one host, usually a router, answers ARP requests intended for another machine on a different network segment (vlan or subnet). By faking its identity, the router accepts responsibility for routing packets to the real destination. Audited against the output of 'show running-config' (run 'terminal length 0' first; do not use 'show running-config all', which adds default values).

점검 방법

감사 방식: 구성 패턴

패턴: (?m)^[ \t]*ip (?:local-)?proxy-arp\b

조치 방법

조치 방식: 가이드 또는 인프라 패치

! Proxy ARP is disabled on all interfaces by default, and that configuration does not appear in the running or saved configuration. Proxy ARP only appears in the configuration if it is enabled (which is not desired in most cases). To disable this on an interface if it is enabled: no ip proxy-arp for instance: int vlan 9 no ip proxy-arp

속성

운영 체제: 모두
태그: cisco-nxosnetworkhardening
참고 자료: CIS Cisco NX-OS Benchmark v1.2.0 - 3.2.3 Disable Proxy ARP on all Layer 3 Interfaces

이 호스트 점검하기

감사 권한이 있는 시스템에서 실행하세요. 스캔은 읽기 전용입니다.

shell

tmaegis scan --target cisco-nxos