diff --git a/p4app/sniff-host.sh b/bin/sniff-host.sh
similarity index 100%
rename from p4app/sniff-host.sh
rename to bin/sniff-host.sh
diff --git a/bin/sniff-intf.sh b/bin/sniff-intf.sh
new file mode 100755
index 0000000..9f699e1
--- /dev/null
+++ b/bin/sniff-intf.sh
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+if [ $# -ne 2 ]; then
+    echo "$0 intf name"
+    exit 1
+fi
+
+set -x
+cd ~/master-thesis/pcap
+
+intf=$1
+name=$2
+
+now=$(date +%F-%H%M)
+filename=${name}-${now}-${intf}.pcap
+
+sudo tcpdump -ni ${intf} -w "${filename}"