diff --git a/nl/link_linux.go b/nl/link_linux.go
new file mode 100644
index 0000000..3b4ca23
--- /dev/null
+++ b/nl/link_linux.go
@@ -0,0 +1,34 @@
+package nl
+
+const (
+	DEFAULT_CHANGE = 0xFFFFFFFF
+)
+
+const (
+	IFLA_INFO_UNSPEC = iota
+	IFLA_INFO_KIND   = iota
+	IFLA_INFO_DATA   = iota
+	IFLA_INFO_XSTATS = iota
+	IFLA_INFO_MAX    = IFLA_INFO_XSTATS
+)
+
+const (
+	IFLA_VLAN_UNSPEC      = iota
+	IFLA_VLAN_ID          = iota
+	IFLA_VLAN_FLAGS       = iota
+	IFLA_VLAN_EGRESS_QOS  = iota
+	IFLA_VLAN_INGRESS_QOS = iota
+	IFLA_VLAN_PROTOCOL    = iota
+	IFLA_VLAN_MAX         = IFLA_VLAN_PROTOCOL
+)
+
+const (
+	VETH_INFO_UNSPEC = iota
+	VETH_INFO_PEER   = iota
+	VETH_INFO_MAX    = VETH_INFO_PEER
+)
+
+const (
+	// not defined in syscall
+	IFLA_NET_NS_FD = 28
+)