HP 6125G HP 6125G & 6125G/XG Blade Switches Security Configuration Gui - Page 249
Configuration example, Network requirements, Configuration considerations, Configuration procedure
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Task Command Remarks Display attacking MAC addresses detected by source MAC address based ARP attack detection. display arp anti-attack source-mac { slot slot-number | interface interface-type interface-number } [ | { begin | exclude | include } regular-expression ] Available in any view Configuration example Network requirements As shown in Figure 73, the hosts access the Internet through a gateway (Device). If malicious users send a large number of ARP requests to the gateway, the gateway may crash and cannot process requests from the clients. To solve this problem, configure source MAC address based ARP attack detection on the gateway. Figure 73 Network diagram IP network ARP attack protection Gateway Device Server 0012-3f 86-e 94c Host A Host B Host C Host D Configuration considerations An attacker may forge a large number of ARP packets by using the MAC address of a valid host as the source MAC address. To prevent such attacks, configure the gateway in the following steps: 1. Enable source MAC address based ARP attack detection and specify the filter mode. 2. Set the threshold. 3. Set the age timer for detection entries. 4. Configure the MAC address of the server as a protected MAC address so that it can send ARP packets Configuration procedure # Enable source MAC address based ARP attack detection and specify the filter mode. system-view 239
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