Hello, 
I'm not sure whether this board is a proper place to post this issue or not.

I have two PC. One is QNX PC and the other is Linux.
Neutrino 6.3.2 version was installed on QNX PC, and Fedora core 3 with kernel 2.6.18 was installed on Linux.

They has a dhcp server on each systems.

The dhcp client was a notebook which is run on Windows XP. 

All three systems have an ethernet interface.

I used a very simple and same configureation file for DHCP server on QNX and Linux.

It tooks about 1 minute for dhcp client to get an IP address from DHCP server on QNX. But when I get an IP address from 
Linux, it tooks only 1 second.

I'd like to know why dhcp server is too slow than linux. and how could dhcp server on QNX be more fast?

I've attached two packet capture files for your information. I used wireshark tools to capture packet on dhcp client.

If  you have any comment, please let me know.