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DISCLAIMER:
6DEPLOY and 6DEPLOY2 are part-funded EC (IST-2007-223794 & IST-2010-261584) projects. The information/views generated by the project may not completely align with those of the individual participating companies or The European Community. Although the project's information/views are considered accurate no responsibility will be accepted for their subsequent use.
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6DEPLOY news
RIPE NCC announces IPv6 Tunnel Detection Tool
Posted by: istadmin on Monday, November 24, 2003 - 09:21 AM
(5841 Reads) comments?
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Today, many IPv6 networks are based on tunnels. Traceroute6 is one of
many tools used to assess route vectors and latency. However, IPv6
tunneling undermines the validity of Traceroute6 because it only
delivers results based on the IPv6, and not the IPv4, layer.
The Tunneldiscovery Tool allows users to detect an IPv6 tunnel by
measuring the MTU size [RFC 1981] over an entire path and displaying
it in a table. In the case of IPv6 tunneling, the MTU size will be
decremented by the size of the IPv4 header. If the MTU value between
source and destination does not amount to 1500 bytes, which is the
normal value for our Ethernet connected test boxes, it could indicate
the presence of at least one tunnel in the path. For more information, see here.
The Tunneldiscovery Tool is available here. |
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