* Rick Jones: >> (source + ip id) should be unique. > > ? I thought there were stacks that had (more or less) per-destination IP ID spaces. Correct. Many stacks show this behavior. -- Florian Weimer <fweimer at bfk.de> BFK edv-consulting GmbH http://www.bfk.de/ Kriegsstraße 100 tel: +49-721-96201-1 D-76133 Karlsruhe fax: +49-721-96201-99