Hello Markus, With so small packets I think you will have them complete most at the time.
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--- Rgds, Wilfried [TeamICS] http://www.overbyte.be/eng/overbyte/teamics.html http://www.mestdagh.biz Thursday, January 31, 2008, 19:43, Markus Humm wrote: >> Hello Markus, >> >> Fragmentation has nothing to do with ICS, it is IP issue and you cannot >> influence it. > Ok, understood. I just thought to have seen a flag somewhere > "don't fragment". >> I think if you send packets smaller than MTU then chance >> is lower that you get fragmentation. Also I think on a busy network >> chance is higher. But what is the problem? Wy take the risk? Just >> concatenate received packeds in case you don't have the complete one. > Sorry, you didn't fully understand what I wrote. On the PC side I have > no problems concatenating several chunks of received data. > On the other side I have no chance: a too long gap between 2 bytes is > regarded as new packet and the old is discarded because the checksum > would be wrong. This has nothing to do with TCP/IP but simply with the > payload, means routing of another protocol over TCP. > Tests on a otherwise not used LAN showed that TCP works fine in that > configuration, but other tests on a different (our company's real LAN) > showed that I can cause trouble if I do a port scan on that TCP > interface converter. I'm not sure why this is and my test app. is a bit > simplistic written. > So rigth now I'm not sure whether I should tread that port scanning case > as some unlikely cause or if I should say: TCP doesn't work reliably > enough for my case and look for other technologies. Thus the question > about fragmentation. My normal case will be a LAN, but if sales then > decides: oh using it for support via Internet I could maybe get into > trouble, but I sort of doubt it as my packets a < 64 byte. > Greetings > Markus -- To unsubscribe or change your settings for TWSocket mailing list please goto http://lists.elists.org/cgi-bin/mailman/listinfo/twsocket Visit our website at http://www.overbyte.be
