router advertisements on open subnets

[Erik Kline]

2009/12/15 Chris Caputo <ccaputo at alt.net>:
> On an open subnet, such as a public WiFi network, what is to stop a guest
> host from announcing IPv6 router advertisements (ICMPv6 type 134) to the
> subnet, thus competing with the intended gateway and potentially drawing
> traffic through/to it for analysis or blackholing?
>
> Chris
>

This is what ra-guard is designed to prevent.