Category: Tunnel
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A few handy LAN-to-LAN Tunnel VPN commands: To display all current IKE security associations (SAs) at a peer. show crypto isakmp sa To display all current IPsec SA’s. show crypto ipsec sa restarting all your ISAKMP VPN Tunnels: clear crypto isakmp sa If you need to reset one VPN then you need…
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GRE Tunnel Configuration Generic Routing Encapsulation, or GRE, is a tunneling protocol that allows the encapsulation of many different network layer protocols between two endpoints. Packets are sent through a virtual tunnel on a point-to-point link. It is important to understand that GRE tunnels do not encrypt traffic in any…