RFC 2356 - Sun's SKIP Firewall Traversal for Mobile IP

RFC 2356 - Sun's SKIP Firewall Traversal for Mobile IP -...

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[ RFC Index | RFC Search | Usenet FAQs | Web FAQs | Documents | Cities ] Alternate Formats: rfc2356.txt | rfc2356.txt.pdf RFC 2356 - Sun's SKIP Firewall Traversal for Mobile IP Search the Archives Display RFC by number RFC2356 - Sun's SKIP Firewall Traversal for Mobile IP Network Working Group G. Montenegro Request for Comments: 2356 V. Gupta Category: Informational Sun Microsystems, Inc. June 1998 Sun's SKIP Firewall Traversal for Mobile IP Status of This Memo This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind. Distribution of this memo is unlimited. Copyright Notice Copyright (C) The Internet Society (1998). All Rights Reserved. Abstract The Mobile IP specification establishes the mechanisms that enable a mobile host to maintain and use the same IP address as it changes its point of attachment to the network. Mobility implies higher security risks than static operation, because the traffic may at times take unforeseen network paths with unknown or unpredictable security characteristics. The Mobile IP specification makes no provisions for securing data traffic. The mechanisms described in this document allow a mobile node out on a public sector of the internet to negotiate access past a SKIP firewall, and construct a secure channel into its home network. In addition to securing traffic, our mechanisms allow a mobile node to roam into regions that (1) impose ingress filtering, and (2) use a different address space. Search RFCs Display RFC By Number
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Table of Contents 1. Introduction . .............................................. 2 2. Mobility without a Firewall . ............................... 4 3. Restrictions imposed by a Firewall . ........................ 4 4. Two Firewall Options: Application relay and IP Security . ... 5 4.1 SOCKS version 5 [4] . ...................................... 5 4.2 SKIP [3] . ................................................. 6 5. Agents and Mobile Node Configurations . ..................... 8 6. Supporting Mobile IP: Secure Channel Configurations . ....... 9 6.1 I: Encryption only Outside of Private Network . ............ 9 6.2 II: End-to-End Encryption . ................................ 10 6.3 III: End-to-End Encryption, Intermediate Authentication . .. 10 6.4 IV: Encryption Inside and Outside . ........................ 10 6.5 Choosing a Secure Channel Configuration . .................. 11 7. Mobile IP Registration Procedure with a SKIP Firewall . ..... 11 7.1. Registration Request through the Firewall . ............... 12 7.1.1. On the Outside (Public) Network . ....................... 13 7.1.2. On the Inside (Private) Network . ....................... 14 7.2. Registration Reply through the Firewall . ................. 14 7.2.1. On the Inside (Private) Network . ....................... 15 7.2.2. On the Outside (Public) Network . ....................... 15 7.3. Traversal Extension . ..................................... 16 8. Data Transfer .
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RFC 2356 - Sun's SKIP Firewall Traversal for Mobile IP -...

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