[radvd-devel-l] IPv6 Network prefixes

Pekka Savola radvd-devel-l@litech.org
Tue, 11 Jun 2002 08:33:00 +0300 (EEST)

On Tue, 11 Jun 2002 Sourajeet.Mohanty@lntinfotech.com wrote:
> I have some Queries regarding IPv6 Network Prefixes advertised by routers
> using radvd:

These question seem to be in no way related to radvd.
> 1) As in each link the prefixes advertised will be different from ech
> other, and suppose I have one network prefix with me.           Then how is
> it possible to know on which link the prefix was advertised ?
> 2)  How to differentiate between network prefixes advertised on different
> links ? I mean, How one link is differentiated with another based on the
> prefixes advertised by routers on those links?

I don't understand what you mean. Elaborate.

(I'm assuming you're not trying to advertise the same prefix on different 
> 3) How the TLA, NLA , SLA are formed in the prefixes ? How the prefixes are
> formed based on those ids ? Is those ids are unique for a link then How
> different prefixes are formed based on those ids ?

TLA/NLA/SLA no longer exist.  The prefix has the "top-part" (first 48 
bits), the "site-part" (the next 16 bits) and "interface-ID part" (last 64 
Pekka Savola                 "Tell me of difficulties surmounted,
Netcore Oy                   not those you stumble over and fall"
Systems. Networks. Security.  -- Robert Jordan: A Crown of Swords