I want to make little broadcast config application. Clients will broadcast their ip addresses periodically server will listen for packets. The problem comes from there that I can't send broadcast packets without to have ip address on the network interface. Maybe Net::RawIP can help me???
Sounds like a reverse DHCP. Since you don't have an IP address, you'll have to send at a lower level. I haven't used Perl for much below the layer of IP but
if Net::RawIP doesn't work out for you
Net::Frame and Net::Frame::Layer::Eth or Net::Write might be useful.