Netgear Modem FVS318N User Manual Page 243

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Virtual Private Networking Using IPSec and L2TP Connections
243
ProSafe Wireless-N 8-Port Gigabit VPN Firewall FVS318N
Assign IPv4 Addresses to Remote Users (Mode Config)
Mode Config Operation
Configure Mode Config Operation on the Wireless VPN Firewall
Configure the ProSafe VPN Client for Mode Config Operation
Test the Mode Config Connection
Modify or Delete a Mode Config Record
To simplify the process of connecting remote VPN clients to the wireless VPN firewall, use
t
he Mode Config feature to automatically assign IPv4 addresses to remote users, including a
network access IP address, subnet mask, WINS server, and DNS address. Remote users
are given IP addresses available in a secured network space so that remote users appear as
seamless extensions of the network.
You can use the Mode Config feature in combination with an IPv6 IKE policy to assign IPv4
a
ddresses to clients, but you cannot assign IPv6 addresses to clients.
Mode Config Operation
After the IKE Phase 1 negotiation is complete, the VPN connection initiator (which is the
remote user with a VPN client) requests the IP configuration settings such as the IP address,
subnet mask, WINS server, and DNS address from the wireless VPN firewall. The Mode
Config feature allocates an IP address from the configured IP address pool and activates a
temporary IPSec policy, using the information that is specified in the Traffic Tunnel Security
Level section of the Mode Config record (on the Add Mode Config Record screen that is
shown in Figure 146 on p
age 245).
Note: After configuring a Mode Config record, you need to manually
configure an IKE policy and select the newly created Mode Config
record from the Select Mode Config Record drop-down list (see
Configure Mode Config Operation on the Wireless VPN Firewall on
page 244). You do not need to change any VPN policy.
Note: An IP address that is allocated to a VPN client is released only after
the VPN client has gracefully disconnected or after the SA liftetime
for the connection has timed out.
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