1. Is tunnel group supported for L-2 or L-3 GRE tunnel? 2. In version was the L-2 GRE support added to AOS?
Environment : This article applies to all Aruba controllers and OS versions post Aruba 6.3
1. We can create L-2 and L-3 GRE tunnels in Aruba controllers to route the traffic. This supports VPN functionality without security features of IPsec tunnels.2. L-3 tunnels can work with Non-Aruba devices.3. L-2 tunnel can only work when other end is also an Aruba device.4. Tunnel groups feature was introduced in 6.35. It allows multiple tunnels to be put in a tunnel group out of which only one is active at a time.6. This provides redundancy and prevents chance of a loop.7. Prior to 6.4.3.2, tunnel group was supported only for L-3 GRE tunnels. Since 6.4.2.3 L-2 GRE tunnels are also supported.(Aruba) (config) #tunnel-group branch_site(Aruba) (config-tunnel-group)#mode l2 | L38. We can verify the tunnels using the following commands:show tunnel-groupshow datapath tunnel-group
1. Tunnel groups feature is supported since 6.3 for L-3 GRE tunnels. 2. Post 6.4.2.3, L-2 GRE tunnels are also supported.
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