Title: NHRP with Mobile NHCs
Author(s): J. Luciani, H. Suzuki, N. Doraswamy, D. Horton.
Status: EXPERIMENTAL
Date: Feb 1999
Length: 16763
This document describes an extension to NHRP [1] which would allow Mobile NHCs to perform a registration with and attach to an NHS in their home LIS in an authenticated manner.
As described in this document, Mobile NHCs are NHCs which are not configured with enough information to find a specific serving NHS in their home LIS, but which have a mechanism to find an NHS (which may or may not be a serving NHS) to which they will attach. As described in [1], an NHC may attach to a 'surrogate' NHS by using a mechanism such as an anycast address. In this case, the NHC may use the surrogate NHS to send a NHRP Registration Request toward the NHC's home LIS where a serving NHS resides. However, as defined in [1], packet authentication is performed on a hop by hop basis. In the mobile NHC case, it is not practical for the mobile NHC be in a security relationship with every surrogate NHS, thus it is presumably desirable to have some form of end to end only authentication for the case of a mobile NHC's registration. This document describes an authentication extension for NHRP which has such end to end only semantics.
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