Users Guide

Table Of Contents
Layer 3 Routing Commands 1897
Tunnel Interface Commands
Dell EMC Networking N3000E-ON/N3100-ON/N3200-ON Series
Switches
Dell EMC Networking provides for the creation, deletion, and management
of tunnel interfaces. They are dynamic interfaces that are created and deleted
by user configuration.
Tunnel interfaces are used for the following purposes.
IPv4 tunnels
IPv6 tunnels
Each router interface (port or VLAN interface) may have associated tunnel
interfaces. Each interface can have multiple tunnel interfaces. There is no set
limit to the number of tunnel interfaces associated with a router interface.
To support the IPv4 to IPv6 transition, Dell EMC Networking supports
configured tunnels (RFC 4213) and automatic 6to4 tunnels (RFC 3056).
6to4 tunnels are automatically formed for IPv4 tunnels carrying IPv6 traffic.
The automatic tunnels IPv4 destination address is derived from the 6to4 IPv6
address of the tunnel’s next hop. Dell EMC Networking can act as a 6to4
border router that connects a 6to4 site to a 6to4 domain. The border router
sends and receives tunneled traffic from routers in the 6to4 domain that
include other 6to4 border routers and 6to4 relay routers.
NOTE: The N3208PX-ON models do not support 6to4 tunnel interfaces.
interface tunnel
Use the interface tunnel command in Global Configuration mode to enter
the interface configuration mode for a tunnel.
Syntax
interface tunnel
tunnel-id
no interface tunnel
tunnel-id
tunnel-id
— Tunnel identifier. (Range: 0–7)