ZyXEL Communications wireless n gigbit router zyxel manual VPN Rule Setup Advanced, 205

	Chapter 15 IPSec VPN
Table 68 Security > VPN > General > Rule Setup: IKE (Basic) (continued)
LABEL	DESCRIPTION
Encryption	Select which key size and encryption algorithm to use for data
Algorithm	communications. Choices are:
	DES - a 56-bit key with the DES encryption algorithm
	3DES - a 168-bit key with the DES encryption algorithm
	The NBG-460N and the remote IPSec router must use the same
	algorithms and key , which can be used to encrypt and decrypt the
	message or to generate and verify a message authentication code.
	Longer keys require more processing power, resulting in increased
	latency and decreased throughput.
Authentication	Select which hash algorithm to use to authenticate packet data.
Algorithm	Choices are SHA1 and MD5. SHA1 is generally considered stronger
	than MD5, but it is also slower.
Advanced...	Click Advanced... to configure more detailed settings of your IKE key
	management.
Apply	Click Apply to save your changes back to the NBG-460N.
Reset	Click Reset to begin configuring this screen afresh.
Cancel	Click Cancel to exit the screen without making any changes.

15.4.2 VPN Rule Setup (Advanced)

Click the Advanced... button in the Rule Setup screen to open this screen.

NBG-460N User’s Guide

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