> 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