Re: Universal/Local Bit

Thanks Scott for the response.

Regards
Anantha Subramanian Natarajan

On Tue, Jun 23, 2009 at 7:48 AM, Scott Morris <swm_at_emanon.com> wrote:

> heheheheh.... There is no need. :)
>
> It's an academic one! If you modify your MAC you're supposed to change
> that. IMHO, if you can't figure out there was something modified in order
> to go from 48 bits to 64 bits, you need therapy. But it's part of the
> spec. Go figure.
>
>
>
>
> *Scott Morris*, CCIE*x4* (R&S/ISP-Dial/Security/Service Provider) #4713,
>
> JNCIE-M #153, JNCIS-ER, CISSP, et al.
>
> CCSI #21903, JNCI-M, JNCI-ER
>
> swm_at_emanon.com
>
>
> Knowledge is power.
>
> Power corrupts.
>
> Study hard and be Eeeeviiiil......
>
>
> Anantha Subramanian Natarajan wrote:
>
> Hi All,
>
> I am trying to understand the need for inverting the U/L bit(7th MSB bit)
> to get the modfied EUI-64 address for IPV6.My understanding is,FFFE is
> inserted in middle to increase the size from 48 bit mac address to 64 so
> that we could be able to accomdate ipv6 /64 host spacing and couldn't
> understand why we invert U/L bit.Thanks for the assistance.
>
> Regards
> Anantha Subramanian Natarajan
>
>
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Received on Tue Jun 23 2009 - 08:21:13 ART