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    SubjectRe: notion of a local address [was: Re: ioctl SIOCGIFNETMASK: ip alias bug 2.4.9 and 2.2.19]
    Date
    From
    Andrey Savochkin:
    > Of course, SIOCGIFCONF isn't even close to provide the list of local
    > addresses.
    > Obvious example: it doesn't enlist all addresses 127.0.0.1, 127.0.0.2 etc.
    > on common systems. If you handle 127.0.0.2 as local, you apply side

    127.0.0.2 is not local on any of my systems. The only exceptions
    are some Linux boxen that I did not ask to do so.

    I welcome suggestions, maybe even code fragments, that will allow
    an MTA to correctly recognize user@[ip.address] as local, as required
    by the SMTP RFC.

    > On Thu, Sep 06, 2001 at 04:17:49PM +0200, Matthias Andree wrote:
    > > I'm not sure where and why you deduce the idea this is about MTA loop
    > > detection or peer recognition.
    >
    > Because it's the obvious reason to start to be aware about networking
    > configuration, and all MTAs known to me try to do it.
    >
    > All other reasons are absolutely artificial.

    It is perfectly OK for an MTA to make a distinction between local
    subnets and the rest of the Internet.

    I welcome suggestions, maybe even code fragments, that will allow
    an MTA to correctly recognize the subnetworks that the machine is
    attached to.

    Wietse
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