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Technology Stocks : COMS & the Ghost of USRX w/ other STUFF
COMS 0.00130-18.8%Nov 7 11:47 AM EST

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To: Hassell Anderson who wrote (4701)9/5/1997 2:59:00 PM
From: Dick Smith   of 22053
 
IPv6 -- hardware or software.

Last week, Hassell Anderson asked, "I read an article a few weeks back in the Philadelphia Inquirer about plans to expand IP address from the current 32 bits to 128 bits. Do you (or any network engineers out there) know if this will require hardware upgrades, or will software upgrades to the trick?"

(I've just finished catching up on about 700 messages from being gone for an extended holiday... this one didn't seem to get answered.)

As far as I can tell, most of the existing hardware will not required any changes to support the new IP addressing scheme, which is being referred to by the IETF as IPv6.

It would make sense that NICs, or any device that operates on the media layer only, should not need any hardware change, although new software (usually drivers) will be required.

I would expect new hardware to be needed only for devices that switch at the IP address level, or use some kind of hardware acceleration to do address searches. Beyond this, the availability of new addresses will continue to increase the memory requirements for the tables needed by core routers.

IPv6 includes planning for the transition, so that the cutover from the current version (IPv4) can be fairly smooth. I don't see this change driving a major wave of purchases.

Dick
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