You can configure both dynamic tunnels associated with L2TP and static IP tunnels on your E-series router; however, you must first install a Service Module (SM). Dynamic tunnels, which are not associated with a particular interface, are described in JUNOSe Broadband Access Configuration Guide. Static tunnels, in which the tunnel is assigned to a particular interface and specified in slot/port format, are described in JUNOSe IP Services Configuration Guide.
For information about managing these types of tunnels on the router, see JUNOSe Physical Layer Configuration Guide.