Cisco DPQ2425 User Manual page 69

Field
Phase 2 authentication Allows you to select an authentication type for another level of security. Select
Phase 2 SA lifetime
Configuring Firewall Protection
Use the Setup Firewall - Options page to configure web page filtering and firewall
protection. This page allows you to enable various firewall protection filters.
Note: If you are not familiar with the advanced settings detailed in this section,
contact your service provider before you attempt to change any of the wireless
residential gateway default firewall options settings.
Click Options in the Firewall section of the Setup page to access the Setup Firewall -
Options page.
Setup Firewall - Options Page
The following illustration is an example of the Setup Firewall - Options page.
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How Do I Configure My Wireless Residential Gateway with Digital Voice Adapter?
Description
one of the following three authentication types:
MD5
SHA
Null (none)
You may choose any authentication type as long as the other end of the VPN
tunnel uses the same method
Note: SHA is recommended because it is more secure.
Allows you to enter the number of seconds for an individual rotating key to
last until a re-key negotiation between each endpoint occurs. Smaller lifetimes
are generally more secure since it would give a hacker a smaller amount of
time to try to crack the key. However, key negotiation does take up bandwidth,
so network throughput is sacrificed with small lifetimes. The default setting for
Phase 2 is 3,600 seconds.
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