HP 6125G HP 6125G & 6125G/XG Blade Switches Security Configuration Gui - Page 244
Configuring ARP attack protection, Overview, ARP attack protection configuration task list
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Configuring ARP attack protection Overview Although ARP is easy to implement, it provides no security mechanism and is vulnerable to network attacks. An attacker can exploit ARP vulnerabilities to attack network devices in the following ways: • Acts as a trusted user or gateway to send ARP packets so the receiving devices obtain incorrect ARP entries. • Sends a large number of destination unreachable IP packets to have the receiving device busy with resolving destination IP addresses until its CPU is overloaded. • Sends a large number of ARP packets to overload the CPU of the receiving device. For more information about ARP attack features and types, see ARP Attack Protection Technology White Paper. ARP attacks and viruses are threatening LAN security. This chapter introduces multiple features to detect and prevent such attacks. ARP attack protection configuration task list Task Flood prevention User and gateway spoofing prevention Configuring ARP defense against IP packet attacks Configuring ARP source suppression Enabling ARP black hole routing Configuring ARP packet rate limit Configuring source MAC address based ARP attack detection Configuring ARP packet source MAC address consistency check Configuring ARP active acknowledgement Configuring ARP detection Remarks Optional. Configure this function on gateways (recommended). Optional. Configure this function on gateways (recommended). Optional. Configure this function on access devices (recommended). Optional. Configure this function on gateways (recommended). Optional. Configure this function on gateways (recommended). Optional. Configure this function on gateways (recommended). Optional. Configure this function on access devices (recommended). 234
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