On Thu, 14 Mar 2002, JINMEI Tatuya / [ISO-2022-JP] 神明達哉 wrote:
> >>>>> On Wed, 13 Mar 2002 08:15:14 -1000 (HST), 
> >>>>> Antonio Querubin <[EMAIL PROTECTED]> said:
> 
> > And I would suggest that the same arguments still apply to multicast
> > addresses as well.  Otherwise this topic would not keep reappearing.  If
> > as you say, the arguments don't buy much for multicast
> > addresses/applications then wouldn't those same arguments also not buy
> > much for unicast addresses?  I think many programmers would agree that the
> > API makes it relatively simple to enable IPv6 in their existing unicast
> > applications.  So I'm having a difficult time understanding why such
> > arguments would inherently not apply to multicast as well or why multicast
> > should be treated noticeably differently than unicast in the API.
> 
> In the unicast case, porting existing IPv4 applications (essentially)
> only needs some keyword replacements, such as
> s/AF_INET/AF_INET6/g
> s/sockaddr_in/sockaddr_in6/g

Not in the real world.  Who wants an application that can work _only_ with 
IPv6?  Nobody.  In the real world, sockaddr_storage and friends must be 
used and DNS lookup sections re-written with getaddrinfo and getnameinfo.

-- 
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

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