%% You should probably cite draft-ietf-mip4-vpn-problem-statement instead of this I-D. @techreport{ietf-mobileip-vpn-problem-statement-req-03, number = {draft-ietf-mobileip-vpn-problem-statement-req-03}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-mobileip-vpn-problem-statement-req/03/}, author = {Farid Adrangi and Henrik Levkowetz}, title = {{Problem Statement: Mobile IPv4 Traversal of VPN Gateways}}, pagetotal = 20, year = 2003, month = jun, day = 26, abstract = {Deploying Mobile-IP v4 in networks which are connected to the internet through a VPN (Virtual Private Network) gateway presents some problems which do not currently have well-described solutions. This document aims to describe and illustrate these problems, and propose some guidelines for possible solutions.}, }