
© 2009 Cisco Systems, Inc. All rights reserved.
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Cisco PublicBRKBBA-2006
• One of the biggest concerns in using a shared Ethernet Access
device for multiple customers is how to prevent one customer
from affecting another customer
Subscriber Security
Security Threat:
Layer 2 Isolation across switches
Non intentional forwarding of traffic
between UNI ports
DHCP Rogue Server
IP & MAC Address Spoofing
ARP Spoofing (Man-in-the-Middle)
Subscriber
Isolation
Intrusion
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