October 2012
Intermediate to advanced
476 pages
10h 45m
English
book
Network Attacks and Defenses
by Zouheir Trabelsi, Kadhim Hayawi, Arwa Al Braiki, Sujith Samuel Mathew
Content preview from Network Attacks and Defenses
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Abnormal ARP Traffic Detection and Prevention ◾ 75
Ethernet Header
Source MAC address MAC address of Host A
Destination MAC address Broadcast MAC address
Ethernet Type 0x0806 for ARP message
The following screenshot shows the above-generated abnor-
mal ARP packet using CommView Visual Packet Builder.
After injecting the above abnormal ARP request packet
in the network, the Cisco switch discarded the packet. To
display statistics about dropped ARP packets, type the fol-
lowing command:
Switch# show ip arp inspection statistics vlan 1
The following screenshot shows that the above-gener-
ated abnormal ARP request packet has been dropped
by the ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.