In IPv6, the prefix length can range from 0-128. What is the significance of the prefix length with a value 0? Does it suggest that there is no network?
Thanks!
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- 2PS: @Maddy if someone answers your question it is polite to either accept the answer or comment on why the answer is not good enough...Sander Steffann– Sander Steffann2012-04-07 20:44:41 +00:00Commented Apr 7, 2012 at 20:44
- @SanderSteffann: Thank you for your answer. I was out of office for a while and hence the delay.Maddy– Maddy2012-05-09 08:56:39 +00:00Commented May 9, 2012 at 8:56
- 2you still haven't accepted the answer ;-)Sander Steffann– Sander Steffann2012-05-13 06:41:56 +00:00Commented May 13, 2012 at 6:41
- Done :) I'm getting used to the process. Thanks, again.Maddy– Maddy2012-05-17 03:45:12 +00:00Commented May 17, 2012 at 3:45
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1 Answer
A prefix length of 0 (usually written as ::/0) means that no bits of the prefix are fixed and all 128 bits can be 0 or 1. So basically it includes all IPv6 addresses. This ranges from :: (same as 0000:0000:0000:0000:0000:0000:0000:0000) to ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff.
When specifying the default route you define the route as ::/0 (every IPv6 address).
