Hi we have a QNX 6.3.2 Project which we are porting to QNX 6.4.1.
The earlier code used io-net and but since io-net is not available in QNX 6.4.1 we used io-pkt.
To start io-pkt we ran this command:
io-pkt-v4 -d /lib/dll/devnp-speedo.so -p tcpip 
The above command ran without any error.
Then i ran the dhcp.client
dhcp.client
Then i tried checking the ip address of the machine by typing ifconfig in the prompt.The output was:
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> mtu 33192
        inet 127.0.0.1 netmask 0xff000000
fxp0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> mtu 1500
        address: 00:11:22:33:aa:bb
        media: Ethernet none
        inet 0.0.0.0 netmask 0xff000000 broadcat 255.255.255.255

I even tried setting the if address by running the command 
IFCONFIG FXP0 <ip address>

An Ip address gets assigned but media remains none and i m still not able to ping any other computer in the network.
Please help.