Path: utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!amdcad!ames!pasteur!ucbvax!MALIBU.USC.EDU!tsudik From: tsudik@MALIBU.USC.EDU (Gene Tsudik) Newsgroups: comp.protocols.tcp-ip Subject: (none) Message-ID: <8801221843.AA10779@malibu.usc.edu> Date: 22 Jan 88 18:43:09 GMT Sender: daemon@ucbvax.BERKELEY.EDU Organization: The Internet Lines: 14 I have been experiencing what maybe a bug (or "feature") of 4.3 IP code when trying to define new IP options. The new option that I've defined doesn't seem to bother IP an any higher-level protocols when the packets are relatively short. But, as soon as fragmentation is required, e.g. FTP large file, the connection goes dead. My guess is that the reassembly is never completed at the receiving end. a My question is: has anyone been playing with option definition in 4.3 IP and, if so, has a similar problem occurred? Also, is there an obvious place(s) to look for bugs when defining options? Any common blunders people experience when doing that ? Gene Tsudik USC Network Lab