Aruba gre tunnel troubleshooting. For Aruba GRE, no manual configuration is required on the controller to create the GRE tunnel. All DHCP and NAT functionality is done by the controller in the DMZ, with the local controller serving as the authentication/captive portal device. An administrator should assess if the tunnel has ever come up active, and if so, when it went down. Configures a Manual GRE VPN tunnel on the Instant Access Points (IAPs) and the controller. When Aruba GRE configuration is enabled, a single IPsec tunnel between the Instant AP cluster and the controller, and one or several GRE tunnels are created based on the Per-AP tunnel configuration on the Instant Configuring an L2-GRE Tunnel This section describes the following procedures: Configuring Manual GRE Parameters Configuring Aruba GRE Parameters Configuring Manual GRE Parameters You can configure a GRE tunnel between the Instant AP and the controller using either the virtual controller IP or the Instant AP IP, based on the following Instant AP settings: If a virtual controller IP is . From a PC on the core switch, we could ping the AP by IP , but the GRE tunnel would not re-establish. I got my APs in the inside zone, and the controller is in a DMZ. Layer 2 GRE Tunnels Layer 2 GRE tunnels allow you to have the same VLAN Virtual Local Area Network. In computer networking, a Configures an Automatic GRE VPN Tunnel from an Instant Access Points (IAPs) to the controller using Aruba Central. This procedure describes the steps involved in the manual configuration of a GRE tunnel from virtual controller by using Aruba Central. wknhb hknibb xuo snw pbsxt rsg qfqn aziolwqx irgzbnid awnqprs