On 11:55 Sun 14 Nov , David Miller wrote: > From: Eric Dumazet > Date: Sun, 14 Nov 2010 09:52:25 +0100 > > > Really, if you have multiple clients behind a common NAT, you cannot use > > this code at all, since NAT doesnt usually change TCP timestamps. > > NAT is %100 incompatible with TW recycling, full stop. > > There is no maybe, or maybe not. > > If you are behind NAT you must not turn this feature on, ever. Sorry, this question may be OT on this list, but I am just curious: Is there any other OS has implemented this feature like Linux? To be very specific, by this feature, I mean rejecting old duplicates based on per-host cache of last timestamp received from any connections. As suggested in RFC1323 Appendix B.2 (b). Does anyone, by any chance, know the answer? Thanks in advance! -- ZHANG, Le http://zhangle.is-a-geek.org 0260 C902 B8F8 6506 6586 2B90 BC51 C808 1E4E 2973