--- /dev/null
+// Copyright 2014 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build nacl plan9
+
+package icmp
+
+// ListenPacket listens for incoming ICMP packets addressed to
+// address. See net.Dial for the syntax of address.
+//
+// For non-privileged datagram-oriented ICMP endpoints, network must
+// be "udp4" or "udp6". The endpoint allows to read, write a few
+// limited ICMP messages such as echo request and echo reply.
+// Currently only Darwin and Linux support this.
+//
+// Examples:
+// ListenPacket("udp4", "192.168.0.1")
+// ListenPacket("udp4", "0.0.0.0")
+// ListenPacket("udp6", "fe80::1%en0")
+// ListenPacket("udp6", "::")
+//
+// For privileged raw ICMP endpoints, network must be "ip4" or "ip6"
+// followed by a colon and an ICMP protocol number or name.
+//
+// Examples:
+// ListenPacket("ip4:icmp", "192.168.0.1")
+// ListenPacket("ip4:1", "0.0.0.0")
+// ListenPacket("ip6:ipv6-icmp", "fe80::1%en0")
+// ListenPacket("ip6:58", "::")
+func ListenPacket(network, address string) (*PacketConn, error) {
+ return nil, errOpNoSupport
+}