@Override
public InboundPacket inPacket() {
RouterAdvertisement ns = new RouterAdvertisement();
ICMP6 icmp6 = new ICMP6();
icmp6.setPayload(ns);
IPv6 ipv6 = new IPv6();
ipv6.setPayload(icmp6);
ipv6.setDestinationAddress(Ip6Address.valueOf("ff02::1").toOctets());
ipv6.setSourceAddress(IP2);
Ethernet eth = new Ethernet();
eth.setEtherType(Ethernet.TYPE_IPV6)
.setVlanID(VLAN.toShort())
.setSourceMACAddress(MAC2.toBytes())
.setDestinationMACAddress(MacAddress.valueOf("33:33:00:00:00:01"))
.setPayload(ipv6);
ConnectPoint receivedFrom = new ConnectPoint(deviceId(deviceId), portNumber(INPORT));
return new DefaultInboundPacket(receivedFrom, eth, ByteBuffer.wrap(eth.serialize()));
}
private Ethernet buildNdpRequest(
IpAddress targetIp, IpAddress sourceIp, MacAddress sourceMac, VlanId vlan) {
// Create the Ethernet packet
Ethernet ethernet = new Ethernet();
ethernet
.setEtherType(Ethernet.TYPE_IPV6)
.setDestinationMACAddress(MacAddress.BROADCAST)
.setSourceMACAddress(sourceMac);
if (!vlan.equals(VlanId.NONE)) {
ethernet.setVlanID(vlan.toShort());
}
//
// Create the IPv6 packet
//
// TODO: The destination IP address should be the
// solicited-node multicast address
IPv6 ipv6 = new IPv6();
ipv6.setSourceAddress(sourceIp.toOctets());
ipv6.setDestinationAddress(targetIp.toOctets());
ipv6.setHopLimit((byte) 255);
// Create the ICMPv6 packet
ICMP6 icmp6 = new ICMP6();
icmp6.setIcmpType(ICMP6.NEIGHBOR_SOLICITATION);
icmp6.setIcmpCode((byte) 0);
// Create the Neighbor Solication packet
NeighborSolicitation ns = new NeighborSolicitation();
ns.setTargetAddress(targetIp.toOctets());
ns.addOption(NeighborDiscoveryOptions.TYPE_SOURCE_LL_ADDRESS, sourceMac.toBytes());
icmp6.setPayload(ns);
ipv6.setPayload(icmp6);
ethernet.setPayload(ipv6);
return ethernet;
}