Re: Unique Local Address (ULA) - IPv6

You'd configure it where the lab told you. :)

If it said "you have been assigned an ID of ..." then I'd use FC. If it
said "you decided to use an ID of ...." then I'd use FD.

HTH,

*Scott Morris*, CCIE/x4/ (R&S/ISP-Dial/Security/Service Provider) #4713,

JNCIE-M #153, JNCIS-ER, CISSP, et al.

JNCI-M, JNCI-ER

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Roy Waterman wrote:
> Hi all
>
> Would like some clarification on configuring ulas.
> We all know its: FC00::/7, however as per RFC4193 it mentions that the L bit
> (the 8th bit) is set to 1 if the prefix is locally assigned, and that L bit
> as 0 is undefined.
> As such in various places, Ive seen that you'd typically configure ulas
> starting as fd00::/8, but from a Cisco implementation perspective,
> does it matter whether fc00::/8 or fd00::/8 is used?
>
> >From a lab perspective, if asked to configure a ula, should ipv6 address
> fd00:... always be used (locally assigning the ipv6 address) ?
>
> Please advise.

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Received on Tue Dec 15 2009 - 19:14:45 ART