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    SubjectRe: [PATCH] arp_filter patch for 2.4.4 kernel.
    > > also -- isn't it kind of wrong for arp to respond with addresses from
    > > other interfaces?
    > Usually it makes sense, because it increases your chances of successfull
    > communication. IP addresses are owned by the complete host on Linux, not by
    > different interfaces.

    this is one of those things that is still hurting Linux's credibility in the
    read world. people see this kind of obviously broken behavior, and install
    *BSD or Solaris instead.

    isn't this clearly a case of the kernel being too smart: making it impossible
    for a clueful admin to do what he needs? multi-nic machines are now quite
    common, but this "feature" makes them far less useful, since the stack is
    violating the admin's intention.

    > For some weirder setups (most of them just caused by incorrect routing
    > tables, but also a few legimitate ones; including incoming load balancing
    > via multipath routes) it causes problems, so arpfilter was invented to
    > sync ARP replies with the routing tables as needed.

    there's NOTHING weird about a machine having two nics and two IPs,
    wanting to behave like two hosts.

    is there any positive/beneficial reason for the current behavior?

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