Title: Sun's SKIP Firewall Traversal for Mobile IP
Author(s): G. Montenegro, V. Gupta.
Status: INFORMATIONAL
Date: Jun 1998
Length: 53198
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.
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