The following table summarizes GRE tunnel configuration mode commands:

Command Description
dscp Sets the GRE tunnel‘s DSCP / 802.1q priority value
establishment-criteria Configures the GRE tunnel establishment criteria
failover Enables periodic pinging of the primary gateway to assess its availability, in case it is unreachable
mtu Configures the MTU for IPv4/IPv6 L2GRE tunnel endpoints
native Configures native trunking settings for this GRE tunnel
no Removes the GRE tunnel settings based on the parameters passed
peer Configures the GRE tunnel‘s end-point peers
tunneled-vlan Defines the VLAN that connected clients use to route GRE-tunneled traffic within their respective WLANs