> > What is the handling for the case where a prefix's 
 > preferred lifetime
 > > exceeds the valid lifetime?
 > 
 > > Suggestion: Specify that a router MUST NOT send a prefix option
 > > containing preferred lifetime > valid lifetime
 > 
 > > Current text in Preferred Lifetime description (sec 4.2):
 > 
 > > Preferred Lifetime
 > >                   32-bit unsigned integer.  The length of time in
 > >                   seconds (relative to the time the packet is sent)
 > >                   that addresses generated from the prefix via
 > >                   stateless address autoconfiguration remain
 > >                   preferred [ADDRCONF].  A value of all one bits
 > >                   (0xffffffff) represents infinity.  See 
 > [ADDRCONF].
 > >                   Note that the value of this field MUST 
 > NOT exceed 
 > >                   the Valid Lifetime field to avoid preferring 
 > >                   addresses that are no longer valid.
 > 
 > Let me check: is this your suggested text in rfc2461bis?

=> yes

 > 
 > (BTW: I guess you meant "sec 4.6.2", not "sec 4.2")

=> Of course, that's what I meant :)

Hesham


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