[MLB-WIRELESS] ip6 vs ip4 stupid q

[Paul van den Bergen]

In a sense you are right...  but it is a matter of balance.

while hard disk read times come down file sizes increase, but usually 
less than the read speed increases - which is more to do with acceptable 
delay (human factor) than hardware, but that's a whole other debate.

in terms of IP addressing, remember that it is a geometric (power of 2) 
scale.
the key here is to realise that adding a single extra digit doubles the 
address range but only increases the file size by one bit per entry and 
 the search time linearly with the word length.
IPv6 (128 bit) is some 4 times longer than IPv4 (32 bit).  it is 
designed to be future resistant. Most computers are we already have 64 
bit computers (ie. use a 8 byte word), how long before we get 128 
buswidth computers? 10 years?)
however, wtih that many addresses (i think) every square meter of the 
earths surface could have as many addresses as are available in IPv4 for 
the whole globe.

who'd have thougth 10 years ago that we'd use that many addresses....

DoS atacks are dificult to track because of loss of routing information. 
 for example.  IPv6 would be no more difficult.  I seem to recall that 
IPv6 has 2 components, a logical part and a MAC like part (2 x 64 bit) 
so a DoS attacker could be ID'd by the MAC part....  O'course I could be 
rihgt out with this bit = speculation.

On 05/21/02 12:40 PM, rick wrote:

>ok, due to the DOS of oz.org i came to the idea,
>
>if you had a ip6 system wouldnt it be HARDER to find the people responcible?
>
>i mean if we had a ip1/122 system then there would only be 2 ip's and if one
>person got DOS'd u would know it was the other person, add 7billion ip's and
>thats a big stack of hay
>
>this also goes for hacking and wouldnt ignore files have to be bigger due to
>the poossible extra 6 digdets(sp?)
>
>back when i was a kid 80 meg hdd's could have so many games installed on
>them, games got bigger, os's got bigger (some excluded that arnt made by
>windows)
>
>so isnt this doing the big loop, we need bigger cpu's and hard drives
>becouse the files are getting bigger but we want the same read time for the
>whole file, but then there are to many computers for the ip's there for a
>new system gets made with a bigger file needed there for we need bigger
>cpu's and hard drives
>
>not starting a flame i was just curious
>
>
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-- 
Dr Paul van den Bergen
SERC
goofey:bulwynkl
paul at serc.rmit.edu.au
+613 9925 1624 (Phone)
+613 9925 5699 (Fax)




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