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    SubjectRe: [PATCH] arp_filter patch for 2.4.4 kernel.
    On Sat, 5 May 2001, David S. Miller wrote:

    > > It adds the ability to run multiple interfaces on the same subnet,
    > > on the same machine, and have the ARPs for each interface be answered
    > > based on whether or not the kernel would route a packet from the ARP'd
    > > IP out that interface. When used with source-based routing, this
    > > makes things work in an intuitive manner.
    >
    > How difficult is it to compose netfilter rules that do this?

    I want this feature precisely /because/ it interferes with
    packet filtering.

    I sleep better knowing that my packet filters are bound to
    specific interfaces (with default DENY everywhere). I like
    to know that I can ssh in via the second card on my DB
    servers, without worrying about them accepting other traffic
    (or performance-vital traffic going over a cheap backup
    card).

    Matthew.

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