I was going through 6to4 tunnel configs and thought I’d post some info on converting IPv4 address into IPv6 Address. This is pretty straight forward and its obviously involves HEX conversion.
Here, I will convert the address 192.168.25.234
First we divide each octet by 16 and write down the remainder, primary school maths!
192 ÷ 16 = 12 remainder 0
168 ÷ 16 = 10 remainder 8
25 ÷ 16 = 1 remainder 9
234 ÷ 16 = 14 remainder 10
We also know that HEX has the following Values
A = 10
B = 11
C = 12
D = 13
E = 14
F = 15
So we can write 192.168.25.234 into HEX like so… C0A8:19EA
Now we will change the HEX Address C0A8:19EA into regular IPv4
C0 = (12 x 16) + 0 = 192
A8 = (10 x 16) + 8 = 168
19 = (1 x 16) + 9 = 25
EA = (14 x 16) + 10 = 234
QED

{ 5 comments… read them below or add one }
I liked that. Nice and easy
Nice:)
Cool
thanks .it was interesting.but would you please explain about subneting, for example /64 or /128?
I will try and write one at the end of the month on IPv6 Subnetting.