Concept Guide

a. Open the Active Directory and Computers window, add a new user and specify the MAC address
(without the colon delimiter) of the W-IAP for the user name and password.
b. Right-click the user that you have just created and click Properties.
c. On the Dial-in tab, select Allow access in the Remote Access Permission section and click OK.
d. Repeat Step a through Step b for all W-IAPs.
2. Define the remote access policy in the Internet Authentication Service:
a. In the Internet Authentication Service window, select Remote Access Policies.
b. Launch the wizard to configure a new remote access policy.
c. Define filters and select grant remote access permission in the Permissions window.
d. Right-click the policy that you have just created and select Properties.
e. In the Settings tab, select the policy condition, and Edit Profile....
f. In the Advanced tab, select Vendor Specific, and click Add to add new vendor specific attributes.
g. Add new vendor specific attributes and click OK.
h. In the IP tab, provide the IP address of the W-IAP and click OK.
VPN Local Pool Configuration
The VPN local pool is used to assign an IP Address to the W-IAP after successful XAUTH VPN.
(host) # ip local pool "rapngpool" <startip> <endip>
Role Assignment for the Authenticated W-IAPs
Define a role that includes a src-nat rule to allow connections to the RADIUS server and for the Dynamic Radius
Proxy in the W-IAP to work. This role is assigned to W-IAPs after successful authentication.
(host) (config) #ip access-list session iaprole
(host) (config-sess-iaprole)#any host <radius-server-ip> any src-nat
(host) (config-sess-iaprole)#any any any permit
(host) (config-sess-iaprole)#!
(host) (config) #user-role iaprole
(host) (config-role) #session-acl iaprole
VPN Profile Configuration
The VPN profile configuration defines the server used to authenticate the W-IAP (internal or an external server)
and the role assigned to the IAP after successful authentication.
(host) (config) #aaa authentication vpn default-iap
(host) (VPN Authentication Profile "default-iap") #server-group default
(host) (VPN Authentication Profile "default-iap") #default-role iaprole
Branch-ID Allocation
For branches deployed in distributed L3 and distributed L2 mode, the master AP in the branch and the
controller should agree upon a subnet/IP addresses to be used for DHCP services in the branch. The process or
protocol used by the master AP and the controller to determine the subnet/IP addresses used in a branch is
called BID allocation. The BID allocation process is not essential for branches deployed in local or centralized L2
mode. The following are some of the key functions of the BID allocation process:
l Determines the IP addresses used in a branch for distributed L2 mode
l Determines the subnet used in a branch for distributed L3 mode
l Avoids IP address or subnet overlap (that is, avoids IP conflict)
l Ensures that a branch is allocated the same subnet or range of IP addresses irrespective of which AP in the
branch becomes the master in the IAP cluster
Dell Networking W-Series Instant 6.4.3.1-4.2.0.0 | User Guide IAP-VPN Deployment | 247