Enabling Arp Black Hole Routing; Displaying And Maintaining Arp Defense Against Ip Packet Attacks; Arp Defense Against Ip Packet Attack Configuration Example - HP A5830 Series Configuration Manual

Enabling ARP black hole routing

To do...
1. Enter system view.
2. Enable ARP black hole
routing.
Displaying and maintaining ARP defense against IP packet
attacks
To do...
Display the ARP source suppression
configuration information

ARP defense against IP packet attack configuration example

Network requirements
As shown in
VLAN 20. The two areas each connect to the gateway (Device) through an access switch.
A large number of ARP requests are detected in the office area and are considered to be the result of an
IP flood attack. To prevent such attacks, configure ARP source suppression and ARP black hole routing.
Figure 73 Network diagram for configuring ARP defense against IP packet attacks
Use the command...
system-view
arp resolving-route enable
Figure 73, a LAN contains two areas: an R&D area in VLAN 10 and an office area in
Use the command...
display arp source-suppression [
| { begin | exclude | include }
regular-expression ]
225
Remarks
—
Optional
Enabled by default
Remarks
Available in any view