Disable Proxy ARP on all Layer 3 Interfaces

SedangLevel 1Otomatiscisco-nxos

Deskripsi

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).

Cara pemeriksaan

Metode audit: Pola konfigurasi

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

Cara perbaikan

Metode perbaikan: Panduan atau patch infrastruktur

! 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

Properti

Sistem operasi: Apa saja
Tag: cisco-nxosnetworkhardening
Referensi: CIS Cisco NX-OS Benchmark v1.2.0 - 3.2.3 Disable Proxy ARP on all Layer 3 Interfaces

Periksa host ini

Jalankan ini pada mesin yang diizinkan untuk Anda audit. Pemindaian bersifat hanya baca.

shell

tmaegis scan --target cisco-nxos