Somebody in the thread at some point said: > On Fri, 2007-08-03 at 11:49 +0100, Andy Green wrote: > >> ''Because if you have both a hard monitor and a regular interface >> (monitor_during_oper allowed) then we will never check the CRC on frames >> that enter the networking path and can get corrupted TCP packets in etc.'' >> >> If the rest of the networking stack didn't trust the packet anyway and >> confirms the IP-level checksum, then it can make its own opinion about >> the packet. > > Maybe it helps if I add that the FCS covers more of the packet than the > IP checksum; hence, if the FCS fails due to a bit in the area the IP > checksum does not cover we will not ACK the packet and get a > retransmission, but the IP checksum will check out as good and we'll > have a duplicate packet. Fair enough, thanks for the explanation. -Andy - To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
