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The DHCP Request is a broadcast UDP packet，Theoretically I could snnifering it with the Port 67(which dest port of DHCP Request) For example, I could snnifering other device DHCP Request info in LAN under mac os Wireshark

But With Android Application When I run 

DatagramSocket socket = new DatagramSocket("67");

I get Exception with java.net.bindexception bind failed access (permission denied) Which since I may not bind port under 1024

So Is there any other API or Method I could sniffering without root privilage?

PS: Fing Mobile SDK claim it does contains DHCP monitoring so it may have someway doing this

PSPS: It seems Fing implement DHCP sniifer by it's Fingbox

d0ye
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