[ipv6-wg] Request for feedback on IETF I-D draft-v6ops-vyncke-balanced-ipv6-security

* Anfinsen, Ragnar <Ragnar.Anfinsen at altibox.no> [2013-10-16 16:30]:
> Dear all,
> 
> The authors would like to invite the community to review and comment on
> IETF I-D draft-v6ops-vyncke-balanced-ipv6-security.
> 
> <snip>
> Abstract
> 
>    This document describes how an IPv6 residential Customer Premise
>    Equipment (CPE) can have a balanced security policy that allows for a
>    mostly end-to-end connectivity while keeping the major threats
>    outside of the home.  It is based on an actual IPv6 deployment by
>    Swisscom and proposes to allow all packets inbound/outbound EXCEPT
>    for some layer-4 ports where attacks and vulnerabilities (such as
>    weak passwords) are well-known.
> </snip>
> 
> http://tools.ietf.org/html/draft-v6ops-vyncke-balanced-ipv6-security
> 
> We have received feedback from the IETF community that there should not be
> any explicit list of ports to be blocked in the document. The authors
> feels that this list should be maintained by a neutral internet body,
> however we need suggestions from the community on who this could be solved.

Hello,

I can see the advantage in having a mostly-open end-to-end
connectivity by default but I don't think it's feasible. Such a list
would require a tremendous efford to keep up-to-date and I don't think
people would do that. I'm more with the "block inbound by default"
crowd. One of the reasons for IPv6 was to have every "smart thing" in
the home connect to the Internet. Who wants to gather every
vulnerability for every dishwasher and TV that's connecting to the
internet?

Having said that, I'm bothered by the word "should" in connection with
the ability of the enduser to change this list. I would strongly
suggest to change that to a MUST everywhere in the document. If I ever
get a CPE that doesn't let me choose which ports to open inbound I
will go ballistic.

Regards

Sebastian

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