diff --git a/xdp/README.md b/xdp/README.md
new file mode 100644
index 0000000..5ab7b9e
--- /dev/null
+++ b/xdp/README.md
@@ -0,0 +1,17 @@
+Compile:
+
+```
+clang -O2 -Wall -target bpf -c main.c -o main.o
+```
+
+Load:
+
+```
+ip link set dev lo xdp obj main.o
+```
+
+Unload:
+
+```
+ip link set dev lo xdp off
+```
diff --git a/XDP/xdp_udp.c b/xdp/xdp_udp.c
similarity index 100%
rename from XDP/xdp_udp.c
rename to xdp/xdp_udp.c