[ipv6hackers] RA guard evasion
fgont at si6networks.com
Wed May 15 02:06:22 CEST 2013
On 05/13/2013 11:24 AM, Matej Gregr wrote:
> Hi guys,
> most of you are familiar with the concept of RA guard and its ability
> to filter rogue RAs. We have tested 3 switches for access and
> distribution layer and found, that we are able to evade the protection
> quite easilly on all of them. First method is using fragment header and
> this is well known and documented behaviour. However, you are also able
> to evade the protection using several destination options headers (it
> depends on the platform). We believe, that this behaviour is not well
> documented, so we wrote an article.
Do you mean that there's a difference between including one Dst Option
Header (as in Section 2.1 of
vs. multiple Dst Option headers?
Maybe it has to do with how many bytes into the packet the layer-2
device can see/inspect?
e-mail: fgont at si6networks.com
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