code: func (*protocol) ResolveStaticAddress(addr tcpip.Address) (tcpip.LinkAddress, bool) {
  	if header.IsV6MulticastAddress(addr) {
  		// RFC 2464 Transmission of IPv6 Packets over Ethernet Networks
  		//
  		// 7. Address Mapping -- Multicast
  		//
  		// An IPv6 packet with a multicast destination address DST,
  		// consisting of the sixteen octets DST[1] through DST[16], is
  		// transmitted to the Ethernet multicast address whose first
  		// two octets are the value 3333 hexadecimal and whose last
  		// four octets are the last four octets of DST.
  		return tcpip.LinkAddress([]byte{
  			0x33,
  			0x33,
  			addr[header.IPv6AddressSize-4],
  			addr[header.IPv6AddressSize-3],
  			addr[header.IPv6AddressSize-2],
  			addr[header.IPv6AddressSize-1],
  		}), true
  	}
  	return "", false
  }
docs: // ResolveStaticAddress implements stack.LinkAddressResolver.