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Date Submitted

Last Update

0005643

IPv6overGeoNetworking

Base Spec

public

03-08-2010 10:07

09-09-2010 16:14

Reporter

Andras Kovacs

Assigned To

Roberto Baldessari

Priority

normal

Severity

minor

Reproducibility

N/A

Status

resolved

Resolution

no change required

Platform

OS Version

Product Version

v0.0.7

Target Version

Fixed in Version

Next Release

Summary

0005643: TS102636-6-1 v0.0.7 section 8 and Annex A: missing prefix information in MIB

Description

Section 8 text states for processing of received unicasts:
"If the IPv6 source address has a scope greater than link-scope and one or more GVLs exist in the itsgn6aslVLTable whose GVL Area contains the GeoNetworking source nodeâ€™s position, GN6ASL shall, among those GVLs, select one (if present) that is associated to a virtual interface for which that prefix is considered to be on-link"

However since there is no GVL-associated prefix information saved in the MIB, the on-link determination is only possible through querying of IPv6 routing data, which is a strange cross-border solution.
It is recommended to save prefix data in the MIB from the incoming Router Advertisements, so that on-link determination could be done directly before the GVL selection.

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Notes
(0009730) Roberto Baldessari (developer) 09-09-2010 16:14	IPv6 already maintains the Prefix List for prefix on-link determination. The IPv6 Prefix List is accessible by other protocol entities as it is part of the IPv6 MIB (ipv6AddrPrefixTable, RFC2465). It would not make sense to replicate a prefix list inside GN6ASL, as it would be an exactly replicated function. Please note that a single link may be assigned multiple prefixes and each prefix has a limited lifetime based on the RA parameters. All of that is already specified in IPv6 and GN6ASL can rely on it. Please contact me if you don't considered the issue resolved.

Issue History
Date Modified	Username	Field	Change
03-08-2010 10:07	Andras Kovacs	New Issue
24-08-2010 10:45	Sebastian Muellers	Product Version	=> v0.0.7
24-08-2010 10:48	Sebastian Muellers	Status	new => assigned
24-08-2010 10:48	Sebastian Muellers	Assigned To	=> Roberto Baldessari
09-09-2010 16:14	Roberto Baldessari	Status	assigned => resolved
09-09-2010 16:14	Roberto Baldessari	Fixed in Version	=> Next Release
09-09-2010 16:14	Roberto Baldessari	Resolution	open => no change required
09-09-2010 16:14	Roberto Baldessari	Note Added: 0009730

MantisBT 1.2.14 [^]