That ?type-O? aside, there remains a distinct shortage of information on the REST of IPv4IPv6 conversion which this little decimal-to-hex tutorial might logically have addressed.

While this tickled some of your audience, once upon a time, this critic would prefer to hang with a different group, but – thanks for the effort.

pw

thanks for that conversion seems very good, however in method 2 this line seems wrong

9-14- (1110) (1010) 10- A this line should be

E-14 (1110)(1010) 10-A

Please let me know if this is just a typo as I see that the end result was correct

Conversion is done for many reasons, for example v6 device trying to talk to a v4 Device, and only way they can understand each other is to convert the language (so to speak) they talk…

Another example is a 6to4 Tunnel (RFC 3056) , where a conversion is needed…

Also another practical example is, Imagine you have a cluster of Servers running on v4 and you want to transition to v6… Easy way to transition is to get the list of v4 Addresses, write a bit of Bash/PHP Script convert them to v6…

Finally, a v6 address does look intimidating but when you apply Zero/Leading Zero compression, it does look rather presentable

Hope it answers your question.

Are you are actually extracting the ipv4 address contained in a 6to4 ipv6 address, isn’t it? (Because in other case, the conversion wouldn’t make sense)

Cheers.