About Traffic Selectors

For IPsec policies and GRE Generic Routing Encapsulation tunnels, you can select which traffic is allowed to pass through the tunnel.

 

  • IPsec Policies — On step 1 of 4 of the Add IPsec Policy wizard, you specify the traffic type (Layer 3 or Layer 4 protocol), if desired, then you specify the source and destination addresses for the traffic that is permitted to use the IPsec VPN tunnel.

  • GRE Tunnel — On the Add GRE Tunnel window, you specify the IP address and subnet mask of one or more VLANs or IP addresses that are permitted to use the GRE tunnel. Type 0.0.0.0 for IP Address and 0.0.0.0 for the Subnet Mask to select all addresses.

 

You cannot configure a default gateway if you have configured a GRE tunnel with 0.0.0.0/0 in the traffic selector.