Further testing with wireshark running on the target machine shows the WOL MagicPacket is being received, but when the machine is powered down the WOL MagicPacket has no effect.
Also the target mobo has Wake on PCI(-E) enabled.
I've tried using a different NIC. No success.
Is it possible that "poweroff" on SL7.1 is somehow disabling the NIC's ability to WOL?

Cheers
Bill
 
-----Original message-----
> From:Bill Maidment <[log in to unmask]>
> Sent: Saturday 23rd May 2015 13:54
> To: [log in to unmask]
> Subject: Wake on LAN not working in SL 7.1
> 
> Hi folks
> Has anyone got "wake on lan" working on SL 7.1?
> I had it working for SL 6.6 but when I installed SL 7.1 it no longer works.
> 
> ifconfig enp0s7 gives:
> ...
> ether e0:cb:4e:c2:6f:10
> ...
> 
> ethtool enp0s7 gives:
> ...
> Supports Wake-on: g
> Wake-on: g
> ...
> 
> The network interface lights are lit on the switch after issuing the poweroff command and the machine is shut down.
> But when I issue:
> ether-wake -b -i wlan0 e0:cb:4e:c2:6f:10
> from my SL 6.6 laptop it doesn't wake up the machine.
> 
> I have tried issuing ether-wake -b -i enp4s0 e0:cb:4e:c2:6f:10 from a SL7.1 machine connected to the same switch, but still no wake up.
> Have I missed something? Is something blocking the broadcast?
> 
> Cheers
> Bill
> 
>