It appears that there has been a change in the handling of sending packets to
the broadcast IP address between 2.2 and 2.4.
I have an embedded system that has only local LAN access, no default route to
the net as a whole. We're running 2.2.17 currently, and we use bootpc to
configure the system.
We're now looking at converting to 2.4 and are running into a problem with
bootpc getting "Network is unreachable" errors.
After some digging, it appears to be due to the fact that I don't have a default
route specified, but this is on purpose.
strace shows that bootpc is trying to run sendto() with a destination of
255.255.255.255, and this works fine on 2.2 and fails on 2.4. Is this the
desired 2.4 behaviour?
What is the appropriate configuration for my setup? Do I just add a route to
255.255.255.255? Can I set it up to broadcast out all devices automatically, or
do I need to do explicit failover management? Should I be looking to fix bootpc
Chris Friesen | MailStop: 043/33/F10
Nortel Networks | work: (613) 765-0557
3500 Carling Avenue | fax: (613) 765-2986
Nepean, ON K2H 8E9 Canada | email: cfriesen@xxxxxxxxxxxxxxxxxx