There is a vlan5 currently configured with an ip helper-address to forward the broadcast traffic to our DHCP on a different vlan. Works perfectly and everyone is happy.
interface Vlan5 description Super Vlan 5 ip address 10.5.0.254 255.255.0.0 ip helper-address 10.2.41.1 (dhcp) ip helper-address 10.2.41.7 (netboot server, DeployStudio) !
By default, DHCP packets are forwarded (with the ip helper-address), along with other common broadcast traffic.
I'm a little bit concern if that could cause any problems on the long term ? Is there any point to forward all the broadcast packets to the dhcp ? (useless since he doesn't need EVERYTHING when a machine is requesting to netboot ?)
Is there any way to decide which type of broadcast packets goes to which machine ?