Hello Markus, Fragmentation as other guys said is IP issue and you can do nothing about it if any device between sender and receiver's machines cannot bring packet the same size they have been sent from source.
IP protocol has come message system to ask for sender to resend packet as fragmented (below and under no control of ICS). But as it is ICMP messages and many firewalls may block it default, then your machine may never receive the fragmentation's request. This also happend when you are using some VPN network and you may have to set MTU size of sender's machine down to 1400 that is a good value. This can be done thru registry or using some tools like DoctorTCP 0.21 (DrTCP) or SG TCP Optimizer 2.0.3 Regards. MH> since the device I want to talk to does only support sending back the MH> UDP answerts to a predefined IP thus requiring a fixed IP adress on PC MH> side I have to experiment with TCP now. MH> I originally used UDP because it's fragmentation free because behind the MH> device I'm talking to sits another one which actually gets the data I MH> send but doesn't accept any fragmentation. MH> The vendor of the device I'm talking to now suggested I use TCP to get MH> rid of my fixed IP and that he's also using ICS and doesn't get MH> fragmentation (assuming max. bytes sent < MTU which is the case here as MH> well). MH> So what about TCP fragmentation now? How often does it occur in this MH> situation? Is it less likely to occur on a lan than on some internet MH> connection? Can I influence it in any way? MH> I'm using ICS V5 (the one on the partner DVD of Rad Studio 2007). MH> Greetings MH> 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
