Netgear FVG318 Manuel d'utilisateur Page 82

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ProSafe 802.11g Wireless VPN Firewall FVG318 Reference Manual
5-4 Basic Virtual Private Networking
v1.0, September 2007
What level of IPSec VPN encryption will you use?
DE – The Data Encryption Standard (DES) processes input data that is 64 bits wide,
encrypting these values using a 56 bit key. Faster but less secure than 3DES.
3DES – (Triple DES) achieves a higher level of security by encrypting the data three times
using DES with three different, unrelated keys.
–AES
What level of authentication will you use?
MDS – 128 bits, faster but less secure.
SHA-1 – 160 bits, slower but more secure.
VPN Tunnel Configuration
There are two tunnel configurations and three ways to configure them:
Use the VPN Wizard to configure a VPN tunnel (recommended for most situations):
See “Setting Up a Client-to-Gateway VPN Configuration” on page 5-5.
See “Setting Up a Gateway-to-Gateway VPN Configuration” on page 5-19.
See Chapter 6, “Advanced Virtual Private Networking” when the VPN Wizard and its VPNC
defaults (see Table 5-1 on page 5-4) are not appropriate for your special circumstances.
Authentication Protocol SHA-1
Diffie-Hellman (DH) Group Group 2 (1024 bit)
Key Life 8 hours
IKE Life Time 24 hours
NETBIOS Enabled
Note: NETGEAR publishes additional interoperability scenarios with various
gateway and client software products.
Table 5-1. Parameters recommended by the VPNC and used in the VPN Wizard
Parameter Factory Default
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