Re: [mif] What about changing [IPv6] default router rules a bit?

[liu dapeng <maxpassion at gmail.com>]

Hi Markku,
pls see my reply inline.
2009/10/17, Markku Savela <msa at moth.iki.fi>:
> I thought to repost my proposal from over 2 years ago on IPv6 mailing
> list (21.8.2007). I got no feedback then, but I think this might be
> relevant for the MIF topic. Maybe people now understand better what I
> was trying to get through..?
>
> -------
>
> It's not difficult to find even home users with multiple ISP
> links. Both ISP's send RA's with different prefixes (A=1).
>
> Host sees now two default routers on link and will have multiple
> global addresses. By current rules, host can use either router for
> outgoing packets regardless of the selected source address.
>
> I think it would be more sensible to pick the default router from the
> set of routers that actually advertised the prefix matching the
> selected source address?

You mean using source address selection to control the route selection?

BR,
Dapeng Liu

> This would be a simple way to avoid hitting the filters of the ISP's,
> when wrong source address (for that ISP) is used.
>
> The IPv6 architecture assumes all routers on link "co-operate", but I
> think that is too much to expect from simple "home routers", the ISP
> would be supplying... it's better to put some intelligence into host
> requirements?
>
> --
> Markku Savela
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