Netgear DG834G DG834Gv3 Reference Manual - Page 99
Will either endpoint use Fully Qualified Domain Names FQDNs? FQDNs supplied
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Reference Manual for the ADSL Modem Wireless Router DG834G • Will the remote end be any device on the remote LAN, a portion of the remote network (as defined by a subnet or by a range of IP addresses), or a single PC? • Will either endpoint use Fully Qualified Domain Names (FQDNs)? FQDNs supplied by Dynamic DNS providers (see "The Use of a Fully Qualified Domain Name (FQDN)" on page B-8) can allow a VPN endpoint with a dynamic IP address to initiate or respond to a tunnel request. Otherwise, the side using a dynamic IP address must always be the initiator. • What method will you use to configure your VPN tunnels? - The VPN Wizard using VPNC defaults (see Table 7-2) - The typical automated Internet Key Exchange (IKE) setup (see "Using Auto Policy to Configure VPN Tunnels" on page 7-38) - A Manual Keying setup in which you must specify each phase of the connection (see "Using Manual Policy to Configure VPN Tunnels" on page 7-48)? Table 7-2. Parameters Recommended by the VPNC and Used in the VPN Wizard Parameter Secure Association Authentication Method Encryption Method Authentication Protocol Diffie-Hellman (DH) Group Key Life IKE Life Time NETBIOS Factory Default Main Mode Pre-shared Key 3DES SHA-1 Group 2 (1024 bit) 8 hours 1 hour Enabled • What level of IPSec VPN encryption will you use? - DES - 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. • What level of authentication will you use? - MDS: 128 bits, faster but less secure. - SHA-1: 160 bits, slower but more secure. Virtual Private Networking 7-5 v1.0, January 2006