Theo v. Werkhoven wrote: > Fri, 13 Jul 2007, by [EMAIL PROTECTED]: > > >> Hi, >> >> Last Tuesday I got a delay notice triggered by an email I sent to the list. >> That's unimportant, but while looking at it I saw this header: >> >> Received-SPF: none (Address does not pass the Sender Policy Framework) >> SPF=HELO; sender=lists4.suse.de; remoteip=::ffff:195.135.221.135; >> remotehost=lists4.suse.de; helo=lists4.suse.de; >> receiver=exa.billmerriam.com; >> >> >> I noticed the ipv6 address, and I was curious to check who it was: >> > > That is not an IPv6 address. > IPv6 addresses are written with hex notation, e.g. > 2001:888:10:90f::2 i.e. 8193.2184.16.2319.0.0.0.2 when written in > decimal. What the meaning is of the '::ffff:' part I don't know, but > it has nothing to do with IPv6 afaik. > So your analysis has no meaning. > > theo > Actually, I believe it is. the :: refers to a continuous block of zeros. It's been a while since I read about it, but I believe the above is the way an IPv4 is expressed as an IPv6 address.
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