| 10:57 pm on Aug 27, 2013 (gmt 0)|
IPV4 or IPV6, unless you do business in China it should be blocked. Period.
| 11:23 pm on Aug 27, 2013 (gmt 0)|
Here's very brief 2008 example [webmasterworld.com] that may help.
I recall a thread in either in this forum or the Apache forum in which the method to convert IPv4 ranges to IPv6 was discussed.
I've a vague recollection that somebody in another thread provided a URL to either a website or software that does the conversion.
| 1:06 am on Aug 28, 2013 (gmt 0)|
|the method to convert IPv4 ranges to IPv6 |
IPv4 to IPv6 is trivial.
:: detour to investigate issue, with pause for hilarity thanks to highly-google-ranked site having blatant text-encoding problems ::
Quoting randomly from https://isc.sans.edu/tools/ipv6.html *
|IPv4: a.b.c.d translates to IPv6 2002:ab:cd::ab:cd |
where :: = :0: = :0000: (this is part of the IPv6 definition)
and a, b, c, d are each converted from decimal to hexadecimal (255 > ff and so on down).
There are probably dozens of online converters, or you can make your own in, at most, five minutes of programming.
Outside of that 2002:a:b:0:a:b range, you can't go in the other direction because there doesn't seem to be anywhere to go to.
By my count, all of IPv4 = 1/2^96 of IPv6. Brrr.
* The ".edu" is more than a little borderline, but that's IANA's call, not mine. Or possibly ARIN. I forget.
| 1:51 am on Aug 28, 2013 (gmt 0)|
Nothing is trivial once you get past ten fingers and toes :)
| 6:49 am on Aug 28, 2013 (gmt 0)|
@wilderness thx for the example
My main problem is the size of the IPv6 range to block. With IPv4 home users get one IP address and for business ranges i lookup the info in the whois or routing database. But for IPv6 most providers get a few large blocks and they dont specifiy it in the whois database.
| 8:11 am on Aug 28, 2013 (gmt 0)|
|But for IPv6 most providers get a few large blocks and they dont specifiy it in the whois database. |
That should start changing, albeit slowly but as larger sections of the WWW switch to IPv6, so shall all the services that document them.