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Published in:
2014 | OriginalPaper | Chapter
Resolving Fallback and Path MTU Problems Caused by Denying ICMP Packets in IPv6
Authors : Noriaki Yoshiura, Keita Omi
Published in: Internet and Distributed Computing Systems
Publisher: Springer International Publishing
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Denying ICMP packets in IPv6 causes two problems. One is a problem of fallback in IPv4/IPv6 Dual-Stack environment and the other is that of Path MTU Discovery. Each of the problems delays communications. This paper creates a system that shortens this communication delay. The system runs on the gateway of a network and chapters the IPv6 traffic of the nodes in the network and checks IPv6 communications between the nodes in the network and outside of the network. If the system notices failure of the IPv6 communication, the system sends ICMP packets to the node of IPv6 communications to prompt fallback of IPv6/IPv4 or adjustment of packet length for path MTU problem. This paper evaluates the performance of the system by experiment, which shows that the system can shorten communication delay that is caused by the fallback problem.