diff --git a/src/tun.c b/src/tun.c
index 9a82621..fcc7ba7 100644
--- a/src/tun.c
+++ b/src/tun.c
@@ -372,8 +372,8 @@ write_tun(int tun_fd, char *data, size_t len)
 #ifdef LINUX
 	data[0] = 0x00;
 	data[1] = 0x00;
-	data[2] = 0x08;
-	data[3] = 0x00;
+	data[2] = 0x86;
+	data[3] = 0xdd;
 #else /* OPENBSD */
 	data[0] = 0x00;
 	data[1] = 0x00;