SMB> If there were some way of distinguishing between dynamic-IP
SMB> network devices (e.g. ppp, slip) from the "normal" network
SMB> devices (e.g. eth, lo), the kernel could take "appropriate"
SMB> actions on sockets using stale IP numbers.
My eth0 is much like slip and ppp. I jump from network to network;
sometimes I pull out the eth0 card and switch to ppp instead. Of
course I happen to use a PCMCIA card, but people are starting to talk
about hotswapping PCI. You cannot rely on any hardware part being
where you last saw it, these days.
Benny