diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 00000000..4f67a2f8
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "rtrlib"]
+	path = rtrlib
+	url = git@gitlab.labs.nic.cz:ptvrdik/rtrlib.git
diff --git a/rtrlib b/rtrlib
new file mode 160000
index 00000000..6fcc554a
--- /dev/null
+++ b/rtrlib
@@ -0,0 +1 @@
+Subproject commit 6fcc554a75494cee701e13db2791a7fad2eb8813