diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..7bcaf70
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,15 @@
+FROM ubuntu
+MAINTAINER Osbert Feng
+
+USER root
+RUN apt-get update -qq && apt-get install -qq -y python-scapy tcpdump tcpreplay wireshark python-requests
+
+RUN useradd -m -s /bin/bash amzn-dash
+RUN echo amzn-dash:amzn-dash | chpasswd
+
+USER root
+ADD dash-listen.py /home/amzn-dash/dash-listen.py
+CMD python /home/amzn-dash/dash-listen.py
+
+# NOTE: To run this, you must link against the host networking stack
+# docker run --net=host -e DASH_MAC_ADDRESS=<use-dash-probe> -e URL_CALLBACK=http://url/to/callback dash-listen
diff --git a/dash-listen.py b/dash-listen.py
index af6ba60..6bd9cc8 100644
--- a/dash-listen.py
+++ b/dash-listen.py
@@ -1,13 +1,26 @@
-from scapy.all import *
-
-def arp_display(pkt):
-  if pkt[ARP].op == 1: #who-has (request)
-    if pkt[ARP].psrc == '0.0.0.0': # ARP Probe
-      print "ARP Probe from: " + pkt[ARP].hwsrc
-
-print sniff(prn=arp_display, filter="arp", store=0, count=10)
-
 # sudo apt-get install python-scapy tcpdump tcpreplay wireshark
 
 # Note that wireshark prompts during installation if non-root users
 # should be allowed to perform packed capture.
+
+from scapy.all import *
+import os
+import requests
+
+DASH_MAC_ADDRESS=os.environ.get('DASH_MAC_ADDRESS')
+URL_CALLBACK=os.environ.get('URL_CALLBACK')
+
+def arp_display(pkt):
+  if pkt[ARP].op == 1: #who-has (request)
+    if pkt[ARP].psrc == '0.0.0.0': # ARP Probe
+      if pkt[ARP].hwsrc == DASH_MAC_ADDRESS:
+        requests.get(URL_CALLBACK)
+      else:
+        print "ARP Probe from unknown device: " + pkt[ARP].hwsrc
+
+
+while True:
+    try:
+        print sniff(prn=arp_display, filter="arp", store=0, count=10)
+    except:
+        pass