John Vivian <[EMAIL PROTECTED]> a écrit : | A 'ping' consists of two types of ICMP packets; an "echo-request", | and an "echo-reply". | | Take a look at the network traffic for "echo-requests" from the | hosts | that your machine is sending the "echo-reply" to; you should see | them.
It should be better to look for echo-requests addressed to neural1.fe.up.pt since source address of the echo-requests could be forged. | i may be incorrect with this next statement (corrections anyone?), | if | you do not see any "echo-requests" that correspond to the | "echo-replys" | you are seeing, then it may be possible that someone has compromised | your machines. This is probably not the case, though i can't say | for | certain. The bottom line is that if you see the "echo-requests", | then | mystery solved. Otherwise, you may wish to post again with more | details. | | Hope this helps. Can anyone else provide more info? I do not know any other reason for echo-replys... -- o-o [EMAIL PROTECTED] (Michel Verdier) http://www.chez.com/mverdier
