[ipv6hackers] IPv6 host scanning in IPv6

Fernando Gont fgont at si6networks.com
Sat Apr 21 15:31:54 CEST 2012

Hi, Chris!

Thanks so much for your feedback! -- Please find my comments in-line...

On 04/20/2012 08:01 AM, Christiaan Ottow wrote:
> Section 3.1.2 of the draft states:
> It is important to note that "privacy addresses" are generated in 
> addition to traditional SLAAC addresses (i.e., based on IEEE 
> identifiers): traditional SLAAC addresses are employed for incoming 
> According to my best knowledge, this isn't completely true. I haven't
> tested this myself, but it seems that OpenBSD (in the -current and
> the upcoming 5.1) 

Last time I checked (not long ago), OpenBSD did not implement RFC 4941
(privacy addresses) at all. Could you please double-check this?

> drops the EUI-64 address when a privacy address has
> been generated, thus having only the privacy address as global scope
> address. 

This would be somewhat weird, since you usually want a stable address in
addition of privacy/temporary addresses.


Best regards,
Fernando Gont
SI6 Networks
e-mail: fgont at si6networks.com
PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492

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