Disable Proxy ARP on all Layer 3 Interfaces

MoyenneNiveau 1Automatiséecisco-nxos

Description

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).

Méthode de vérification

Méthode d'audit: Motif de configuration

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

Méthode de correction

Méthode de correction: Recommandation ou correctif d'infrastructure

! 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

Propriétés

Systèmes d'exploitation: Tous
Étiquettes: cisco-nxosnetworkhardening
Référence: CIS Cisco NX-OS Benchmark v1.2.0 - 3.2.3 Disable Proxy ARP on all Layer 3 Interfaces

Vérifier cet hôte

Exécutez cette commande sur une machine que vous êtes autorisé à auditer. L'analyse est en lecture seule.

shell

tmaegis scan --target cisco-nxos