udhcpc: IPv4LL (unique link local address when DHCP server does not respond)

[Prasant J]

Hi,

I'm using busybox version 1.23.1 (yocto jethro release).

When DHCP server is not available I see my linux system getting IPv4LL
(Link local) address (169.254....). We may have many linux sytsems
running together.


My queries:
- Who assigns a link local address to the system? (ifup/udhcpc/... any
other tool)
- Does udhcpc/ifup ensures each system is assigned a unique link local
address when multiple systems may be present?


Any inputs will be of help to me.

Regards, Pj