https://app.kbone.net/vault/rfc/docid/4484
RFC4093: Problem Statement: Mobile IPv4 Traversal of Virtual Private Network (VPN) Gateways
Network Working Group F. Adrangi, Ed. Request for Comments: 4093 Intel Category: Informational H. Levkowetz, Ed. Ericsson ...
https://app.kbone.net/vault/rfc/docid/5431
RFC4977: Problem Statement: Dual Stack Mobility
Network Working Group G. Tsirtsis Request for Comments: 4977 Qualcomm Category: Informational H. Soliman Elevate Technologies ...