diff --git a/.gitmodules b/.gitmodules
index 81aa742..1878b11 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -11,3 +11,6 @@
 [submodule "crosstool-ng"]
 	path = crosstool-ng
 	url = https://github.com/someburner/crosstool-ng.git
+[submodule "lwip2"]
+	path = lwip2
+	url = https://github.com/someburner/esp82xx-nonos-linklayer-opensdk.git
diff --git a/lwip2 b/lwip2
new file mode 160000
index 0000000..95a66f1
--- /dev/null
+++ b/lwip2
@@ -0,0 +1 @@
+Subproject commit 95a66f198d88fd74c5a979b9139f7e4be2231a48