HP 6125G HP 6125G & 6125G/XG Blade Switches Security Configuration Gui - Page 246
Displaying and maintaining ARP defense against IP packet attacks, Configuration example
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Step 1. Enter system view. 2. Enable ARP black hole routing. Command system-view arp resolving-route enable Remarks N/A Optional. Enabled by default. Displaying and maintaining ARP defense against IP packet attacks Task Display the ARP source suppression configuration information. Command display arp source-suppression [ | { begin | exclude | include } regular-expression ] Remarks Available in any view Configuration example Network requirements As shown in Figure 72, a LAN contains two areas: an R&D area in VLAN 10 and an office area in VLAN 20. The two areas connect to the gateway (Device) through an access switch. A large number of ARP requests are detected in the office area and are considered as the consequence of an IP flood attack. To prevent such attacks, configure ARP source suppression and ARP black hole routing. Figure 72 Network diagram IP network Gateway Device ARP attack protection VLAN 10 VLAN 20 Host A R&D Host B Host C Office Host D 236
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