Users Guide

264 | VPN Configuration Dell PowerConnect W-Series Instant Access Point 6.2.0.0-3.2.0.0 | User Guide
n Centralized L2— In this mode, the VC does not assign an IP address to the client, but the
DHCP traffic is directly forwarded to the controller over the IPSec tunnel and obtains an
IP address from either the controller or a DHCP server behind the controller serving the
VLAN of the client. However, W-Instant AP does forward client traffic in the same way as
the Distributed L2 mode.
l L3 Routing Mode— In this mode, W-Instant supports L3 routing mode of connection to
corporate. VC assigns an IP addresses from the configured subnet and forwards traffic to both
corporate and non-corporate destinations. W-Instant AP takes care of routing on the subnet
and also adds a route on the controller after the VPN tunnel is set up during the registration of
the subnet.
Figure 207 - Tunneling— DHCP Server
NAT DHCP Configuration
In NAT mode, the scope of the subnet is local to the W-IAP and forwards traffic through the
IPSec tunnel or through the uplink.
1. Click New in the DHCP Server window and select Local to configure the following
parameters for NAT mode DHCP pool.
n Name— Name of the subnet (must be unique).
n Type— Indicates the type of DHCP server. Available options are Local, Distributed L3,
Distributed L2, Centralized L2. Local implies that this is a NAT mode DHCP subnet.
n VLAN— VLAN ID of the subnet. This needs to be referenced in the SSID configuration
to make use of this subnet.
n Network— Network to be used for this subnet.
n Netmask— Net mask of the subnet. This along with Network determines the size of the
subnet.
n DNS server— An optional field which defines the DNS server.
n Domain name— An optional field which defines the domain name.