Now, you are fully set up to try to boot your PA-RISC box via network. You can follow the instructions in Section 4.3.6.
If you have any trouble, start by looking at those points and then ask the PA/Linux mailing list.
Settings on the DHCP server (verify the PA-RISC MAC address is correct).
Your dhcp server is on the same physical network segment as the PA-RISC box.
The state of the network connection of the 2 boxes.
Try to tcpdump while you are booting the PA-RISC box over the lan.