IPv4 addressing space has almost been exhausted; many organisations will soon be required to perform the changeover to IPv6. Traditional IPv4 routing protocols must be replaced with new IPv6 compatible protocols to ensure systems continue to operate effectively; however these protocols have undergone significant changes in order to support IPv6. Understanding these changes is important when selecting a routing protocol for a system, in order to facilitate this, a study and comparison of two

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... lar routing protocols; OSPF and EIGRP has been undertaken. The major changes between the IPv4 and IPv6 editions have been identified and discussed and the two protocols have been compared against a number of criteria.