Network problems - asymmetric routing where the return route doesn't work
right at all - can also cause apparent syn floods. Locally, a large modem
pool or incoming dynamic connections can also cause short lived problems
of this type (it can take a short time for the network to have the routing
straight during which time packets can go one way but not the other).
In short, something reported as a SYN flood warrents investigation, not
panic, nor is it evidence of any form of malicious action.
Nigel.
-- [ Nigel.Metheringham@theplanet.net - Systems Software Engineer ] [ Tel : +44 113 207 6112 Fax : +44 113 234 6065 ] [ Real life is but a pale imitation of a Dilbert strip ]
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