diff --git a/misc/mac2lla.py b/misc/mac2lla.py
new file mode 100644
index 00000000..595f9698
--- /dev/null
+++ b/misc/mac2lla.py
@@ -0,0 +1,12 @@
+def mac_to_lladdr(mac):
+     macpieces = []
+     mac = mac.replace('-', ':')
+     for byte in mac.split(':'):
+          macpieces.append(int(byte, 16))
+     macpieces[0] = macpieces[0] ^ 2
+     llapieces = [(macpieces[0] << 8) + macpieces[1], (macpieces[2] << 8) + 0xff, 0xfe00 + macpieces[3], (macpieces[4] << 8) + macpieces[5]]
+     return 'fe80::{:x}:{:x}:{:x}:{:x}'.format(*llapieces)
+
+if __name__ == '__main__':
+    import sys
+    print(mac_to_lladdr(sys.argv[1]))