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    SubjectRe: TCP connection failure in 2.3.x
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    Date
    graham@barnowl.demon.co.uk (Graham Murray) writes:
    >
    > The sequence of events which consistently shows this problem is to
    > bring up the ppp link using diald by initiating five parallel calls to
    > nntpget to download news. The ISP attempts to initiate SMTP
    > connections from 2 mailers about 30s after the link is established. By
    > this time, the link is busy passing data from the nntp servers. The
    > tcpdump output shows that the initial SYN packets are ACKd very
    > quickly, then after about 500ms, the SYN ACK is resent multiple times
    > in very quick sucession. About 4.5s later the ISP sends an ACK in
    > response to my SYN ACK packets (thus completing the 3-way handshake),
    > but instead of continuing the connection, my system Resets it.

    This was introduced by a bug "fix" in late 2.2, and should be already fixed
    again in 2.2.10/2.3.10. Could you check if it goes away when you upgrade?

    -Andi

    --
    This is like TV. I don't like TV.

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