At 06:45 a.m. 03/07/03 +0200, you wrote:
The netfilter list had no answer for this.
I don´t thing netfilter has something to do with this. Remember that:
TCP faces transmission errors such as received datagrams apparently not directed to the host that received them by responding, inmediately, with a datagram that has its RST flag on.
Search for this side, perhaps you were lucky.
Best regards,
Leonardo Balliache