Cisco WUSB54G User Guide - Page 46

Other Options, Key Life Time

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Wireless-G VPN Broadband Router Key Life Time. In the Key Lifetime field, you may optionally select to have the key expire at the end of a time period of your choosing. Enter the number of seconds you'd like the key to be used until a re-key negotiation between each endpoint is completed. Other Options NetBIOS broadcast. Click the checkbox if you want NetBIOS traffic to pass through the VPN tunnel. By default, the Router blocks these broadcasts. Anti-replay. This protects the Router from anti-replay attacks, when people try to capture your authentication packets in an attempt to gain access. The feature is enabled by default. Keep Alive. This feature helps maintain the connections of IPSec tunnels. Whenever a connection is dropped and the drop is detected, then the connection will be re-established immediately. Click the checkbox to enable this feature. If IKE failed more than -- times, block this unauthorized IP for -- seconds. This feature is enabled by default. It enables the Router to block unauthorized IP addresses. Specify the number of times IKE must fail before the Router blocks that unauthorized IP address. Then specify how many seconds you want the unauthorized IP address to be blocked. When you have finished making changes to this screen, click the Save Settings button to save the changes, or click the Cancel Changes button to undo your changes. Chapter 6: Configuring the Wireless-G VPN Broadband Router 36 The Security Tab - VPN

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36
Chapter 6: Configuring the Wireless-G VPN Broadband Router
The Security Tab - VPN
Wireless-G VPN Broadband Router
Key Life Time
. In the
Key Lifetime
field, you may optionally select to have the key expire at the end of a time
period of your choosing. Enter the number of seconds you’d like the key to be used until a re-key negotiation
between each endpoint is completed.
Other Options
NetBIOS broadcast
. Click the checkbox if you want NetBIOS traffic to pass through the VPN tunnel. By default,
the Router blocks these broadcasts.
Anti-replay
. This protects the Router from anti-replay attacks, when people try to capture your authentication
packets in an attempt to gain access. The feature is enabled by default.
Keep Alive
. This feature helps maintain the connections of IPSec tunnels. Whenever a connection is dropped and
the drop is detected, then the connection will be re-established immediately. Click the checkbox to enable this
feature.
If IKE failed more than -- times, block this unauthorized IP for -- seconds
. This feature is enabled by
default. It enables the Router to block unauthorized IP addresses. Specify the number of times IKE must fail
before the Router blocks that unauthorized IP address. Then specify how many seconds you want the
unauthorized IP address to be blocked.
When you have finished making changes to this screen, click the
Save Settings
button to save the changes, or
click the
Cancel Changes
button to undo your changes.