Networks

Networks


When it came to planning an IPv4 network, we were used to carving up our networks into various different length subnets, depending on our requirements. IPv6 changes things considerably in this respect, enforcing a fixed prefix length of /64. So ...
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In many organisations, IPv4 Multicast lies dormant, rarely (if ever) appearing on the network. Yet in IPv6, Multicast is a fundamental building block. So what are the implications of taking what was a niche player in IPv4 and making it ...
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Don't be fooled into thinking that the only change in IPv6 is longer addresses. There have been a number of other significant changes to the protocol and the implications are wide ranging. IPv6 Packets and Extension Headers There is an ...
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IPv6 Unicast Addressing RFC4291 details the IPv6 addressing architecture. In terms of unicast addresses, the addresses you really need to be aware of are. Loopback Address In IPv4 this is 127.0.0.1 of course. In IPv6 the loopback ...
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Like many people, I've spent a fair amount of time trying to pretend IPv6 doesn't exist. So when one of my clients asked me to help them with their dual-stack IPv6 implementation, it was with some dread that I opened ...
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