IPv4 Netmask with Multiple IPv6 Link Local Addresses Problem

Hi All...

I'm working on an embedded product using Linux 2.6.25.5 for PowerPC.
In a dual stack environment with eth0 assigned a Link Local and IPv4
address. I can assign a second link-local IPv6 address to the
interface, but the IPv4 netmask gets changes to 0.0.0.0. Is this
expected behavior for IPv6 or is this a bug?

Thanks,
Ryan Phillips