Virtual Private Networking
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N300 Wireless Dual Band ADSL2+ Modem Router DGND3300v2
A VPN between two or more NETGEAR VPN-enabled routers is a good way to connect
branch or home offices and business partners over the Internet. VPN tunnels also enable
access to network resources across the Internet. In this case, use gateways on each end of
the tunnel to form the VPN tunnel end points. See Set Up a Gateway-to-Gateway VPN
Configuration on pag
e 90 for information about how to set up this configuration.
Plan a VPN
When you set up a VPN, it is helpful to plan the network configuration and record the
configuration parameters on a worksheet:
Table 1. VPN Tunnel Configuration Worksheet
Parameter Value to Be Entered Field Selection
Connection Name N/A
Pre-Shared Key N/A
Secure Association N/A Main Mode Manual Keys
Perfect Forward secrecy N/A Enabled Disabled
Encryption Protocol N/A DES 3DES
Authentication Protocol N/A MD5 SHA-1
Diffie-Hellman (DH) Group N/A Group 1 Group 2
Key Life in seconds N/A
IKE Life Time in seconds N/A
VPN Endpoint Local IPSecID LAN IP Address Subnet Mask FQDN or Gateway
IP (W
AN IP Address
To set up a VPN connection, you need to configure each endpoint with specific identification
and connection information describing the other endpoint. You configure the outbound VPN
settings on one end to match the inbound VPN settings on other end, and vice versa.
This set of configuration information defines a security association (SA) between
the two
VPN endpoints. When planning your VPN, you have to make a few choices first:
• Will the local end b
e any device on
the LAN, a portion of the local network (as defined by
a subnet or by a range of IP addresses), or a single computer?
• Will the remote end be any device on the remote LAN, a portion of the remote network (as
defined by a subne
t or by a range of IP addresses), or a single computer?
• Will either endpoint use fully qualified domain names (FQDNs)? FQDNs supplied by
Dynamic DNS p
roviders (see Use a Fully Qualified Domain Name (FQDN) on page 147
)
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