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    SubjectRe: Arp expire/timeout 2.1.132/2.2pre1
    On Mon, Jan 04, 1999 at 07:13:56PM +0300, wrote:
    > Hello!
    > > Thank god - no more ulrix on that box :) - Trying to netboot Linux/Mips
    > > but the Prom seems to be mega-dumb ... Once it starts TFTP
    > > it seems not to answer arp requests anymore :(
    > Well, you could increase /proc/sys/net/ipv4/neigh/eth0/base_reachable_time
    > from 30sec to something about twice longer, than tftp time
    > and, probably, /proc/sys/net/ipv4/neigh/eth0/delay_first_probe_time
    > to tftp time.
    > What is not clear: 15sec should be enough to load image.

    It is definitly not - tftp is 512 byte packets and with
    a 1.4MB kernel and a slow decstation :)

    > I have an impression, that this arp entry never enters to reachable
    > state (i.e. server never receives arp reply) Could you make tcpdump?

    It does - how would it then be able to BEGINN a tftp download.
    It starts the tftp download and after some seconds it stops transferring.
    I discovered the bug by doing a tcpdump - When the tftp stops
    i can see the tftp server trying to do an arp request but
    the client (Decstation prom) doesnt answer so the tftp times out.

    Florian Lohoff +49-5241-470566
    Good, Fast, Cheap: Pick any two (you can't have all three). (RFC 1925)

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