Re: notion of a local address [was: Re: ioctl SIOCGIFNETMASK: ip alias

Alan Cox (alan@lxorguk.ukuu.org.uk)
Thu, 6 Sep 2001 21:23:43 +0100 (BST)

> On Thu, 06 Sep 2001, Alan Cox wrote:
> > If you accept 10.0.0.1 from the outside you are leaking information. It
>
> No, if you accept 10.*.*.* from the outside, your routers are broken.

Your router does not read mail RCPT headers.

RCPT root@[10.0.0.1]

can come from any ip address.

> Alan, SIOCGIFCONF is working sufficiently, it's SIOCGIFNETMASK that
> we're talking about. SIOCGIFNETMASK works properly on any other system
> or - as far as I can currently test - with my patch.

Then that is worth looking into.

Alan
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