Concept Guide

AP Configuration
This section provides information on configuration steps performed through the CLI or the UI.
Configuration Steps CLI Commands UI Procedure
1. Configure Aruba GRE or
manual GRE
l Aruba GRE uses an IPSec
tunnel to facilitate
controller configuration
and requires VPN to be
configured. This VPN
tunnel is not used for any
client traffic.
l Manual GRE uses
standard GRE tunnel
configuration and
requires controller
configuration to
complete the GRE tunnel.
Aruba GRE configuration
(ap)(config)# vpn primary <controller-IP>
(ap)(config)# vpn gre-outside
Manual GRE configuration
(ap)(config)# gre primary <controller-IP>
(ap)(config)# gre type 80
Per-AP GRE tunnel configuration
Optionally, per-AP GRE tunnel can also be enabled, which causes
each W-IAP to form an independent GRE tunnel to the GRE end-
point. This requires each W-IAP MAC to be present in the
controller whitelist if Aruba GRE is used, or GRE configuration for
the IP of the each W-IAP on the controller for Manual GRE.
(ap)(config)# gre per-ap-tunnel
NOTE: Starting with 6.4.3.1-4.2.0.0, if Virtual Controller IP is
configured and per-AP GRE tunnel is disabled, W-IAP uses Virtual
Controller IP as the GRE source IP. For Manual GRE, this simplifies
configuration on controller, since only the Virtual Controller IP
destined GRE tunnel interface configuration is required.
See Enabling
Automatic
Configuration
of GRETunnel
and
Configuring an
L2-GRETunnel
2. Configure routing
profiles to tunnel traffic
through GRE.
(ap)(config)# routing-profile
(ap)(routing-profile)# route 0.0.0.0 0.0.0.0 <IP of GRE-endpoint>
See
Configuring
Routing
Profiles
3. Configure Enterprise
DNS. The example in the
next column tunnels all
DNS queries to the
client’s original DNS
server without proxying
on W-IAP.
(ap)(config)# internal-domains
(ap)(domains)# domain-name *
See
Configuring
Enterprise
Domains
4. Configure centralized L2
DHCP profile with VLAN
20.
Centralized L2 DHCP profile VLAN 20
(ap)(config)# ip dhcp l2-dhcp
(ap)(DHCP profile "l2-dhcp")# server-type
Centralized,L2
(ap)(DHCP profile "l2-dhcp")# server-vlan 20
See
Configuring
Centralized
DHCP Scopes
Table 78: W-IAP Configuration for Scenario—GRE: Single Datacenter Deployment with No Redundancy
Dell Networking W-Series Instant 6.4.3.1-4.2.0.0 | User Guide IAP-VPN Deployment Scenarios | 395