Dell PowerConnect W-IAP3WN/P User Manual Page 215

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215 | VPN Configuration Dell Networking W-Series Instant 6.4.0.2-4.1 | User Guide
Figure 66 Manual GRE Configuration
4. Click Next to continue. When the GREtunnel configuration is completed on both the W-IAP and Controller, the
packets sent from and received by a W-IAP are encapsulated, but not encrypted.
In the CLI
To configure a manual GRE VPN tunnel:
(Instant AP)(config)# gre primary <name>
(Instant AP)(config)# gre type <type>
(Instant AP)(config)# gre per-ap-tunnel
(Instant AP)(config)# end
(Instant AP)# commit apply
To view VPN configuration details:
Instant Access Point# show vpn config
To configure GRE tunnel on the controller:
(host)(config)# interface tunnel <Number>
(host)(config-tunnel)# description <Description>
(host)(config-tunnel)# tunnel mode gre <ID>
(host)(config-tunnel)# tunnel source <controller-IP>
(host)(config-tunnel)# tunnel destination <AP-IP>
(host)(config-tunnel)# trusted
(host)(config-tunnel)# tunnel vlan <allowed-VLAN>
Configuring an L2TPv3 Tunnel
The Layer 2 Tunneling Protocol version 3 (L2TPv3) feature allows W-IAP to act as L2TP Access Concentrator (LAC)
and tunnel all wireless clients L2 traffic from AP to L2TP Network Server (LNS). In a centralized L2 model, the VLAN
on the corporate side are extended to remote branch sites. Wireless clients associated with W-IAP gets the IP
address from the DHCP server running on LNS. For this, AP has to transparently allow DHCP transactions through
the L2TPv3 tunnel. In this release, L2TPv3 supports the following:
l Instant supports tunnel and session configuration, and uses Control Message Authentication (RFC 3931) for
tunnel and session establishment. Each L2TPv3 tunnel supports one data connection and this connection is
termed as an L2TPv3 session.
l Each W-IAP supports tunneling over UDP only.
l If the primary LNS is down, it fails over to the backup LNS. L2TPv3 has one tunnel profile and under this, one
primary peer and a backup peer are configured. If the primary tunnel creation fails or if the primary tunnel gets
deleted, the backup starts. The following two failover modes are supported:
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