The stack probably crashed. Check that this is the case using pidin. If 
you've got dumper running, check in /var/dumps for the core file and 
send it.

/P

> "netmanager error: could not open socket: Address family not supported by protocol family"
>    

> Hi Yao,
> 
> Thanks you so much for your consistent efforts and time for this job, I 
> appreciate it. I copied the file (devnp-ral.so) in x86/lib/dll folder. After 
> rebooting system, it doesn't detect any NIC :(, then I tried to find error, in
>  network configuration manager it show error like this "netmanager error: 
> could not open socket: Address family not supported by protocol family" 
> 
> Now, this system doesn't detect any network interfaces, including the existing
>  wired Ethernet NIC. If I remove this file (devnp-ral.so), and reboot the 
> system, it comes back to normal.
> 
> Please advise me.
> 
> Thanks
> Palak


Don't modify the enumerators.

You can do this:
1)mkdir work
2)cp where/devnp-ral.so work
3)io-pkt-v4-hc -i1 -S -d `pwd`/work/devnp-ral.so verbose=5 -ptcpip prefix=/ral
4)pidin arg|grep io-pkt-v4-hc 
5)sloginfo

if you can't see this 2 io-pkt-v4-hc then io-pkt-v4-hc crashed, attached the core dump under /var/dumps/io-pkt-v4-hc.
core.
if not crashed
5)SOCK=/ral ifconfig
all of the network related commands need SOCK=/ral

sorry!