Cisco Cisco IOS Software Release 12.4(2)T Folheto
© 2008 Cisco Systems, Inc. All rights reserved.
20
Time-Based Anti-Replay Support
on VPN Services Adapter (VSA)
on VPN Services Adapter (VSA)
Time-based anti-replay is used to detect replay attacks
Prevents ‘man in the middle’ attacks
Designed for Group Encrypted Transport VPN (GET
VPN) solutions
VPN) solutions
Created for private WAN environments to secure branch-to-
branch communications without having to incur the cost of
establishing and maintaining full mesh connections
branch communications without having to incur the cost of
establishing and maintaining full mesh connections
Standard sequence-based anti-replay is not supported
due to GET VPN’s group communication model
due to GET VPN’s group communication model
Cisco VSA is supported on the Cisco 7200 Series
Router with the Network Processing Engine (NPE)-G2
Router with the Network Processing Engine (NPE)-G2
Cisco IOS
Security