Documents related to 'Layer Two Tunneling Protocol'
1999, RFC2661: Layer Two Tunneling Protocol "L2TP"
2001, RFC3070: Layer Two Tunneling Protocol (L2TP) over Frame Relay
2001, RFC3193: Securing L2TP using IPsec
2005, RFC3931: Layer Two Tunneling Protocol - Version 3 (L2TPv3)