IPPacket Event
Fired whenever a packet is received.
Syntax
Sub ipmonitorcontrol_IPPacket(SourceAddress As String, SourcePort As Long, DestinationAddress As String, DestinationPort As Long, IPVersion As Integer, TOS As Integer, Id As Long, Flags As Integer, Offset As Integer, TTL As Integer, Checksum As Long, IPProtocol As Integer, Payload As String)Remarks
When Active is True, the control will listen for network traffic. For each packet sent across the interface in LocalHost, the control will parse the packet and fire an IPPacket event with the header fields and payload. The parameters are defined as follows:
| SourceAddress | The IP address of the originating host in IP dotted format. |
| DestinationAddress | The IP address of the destination host in IP dotted format. |
| IPVersion | The IP protocol version being used by this packet. |
| TOS | The type of service being used by this packet. |
| Id | The packet id used to identify and track packets. |
| Flags | Flags relating to the status of the packet and desired responses. |
| Offset | The fragment offset of this packet in relation to larger data. |
| TTL | The time to live for this packet. |
| IPProtocol | The IP protocol used in the payload. |
| Payload | The data field of the IP packet. This field may contain extra IP headers, depending upon the IP protocol used to create it. |
TOS
| Bit 0, 1, 2 | Precedence (see below) |
| Bit 3 | Delay (0 = Normal, 1 = Low) |
| Bit 4 | Throughput (0 = Normal, 1 = High) |
| Bit 5 | Reliability (0 = Normal, 1 = High) |
Precedence
| 000 | Routine |
| 001 | Priority |
| 010 | Immediate |
| 011 | Flash |
| 100 | Flash Override |
| 101 | CRITIC/ECP |
| 110 | Internetwork Control |
| 111 | Network Control |
Flags
| Bit 0 | Always zero |
| Bit 1 | Don't Fragment (0 = May Fragment, 1 = Don't Fragment) |
| Bit 2 | More Fragments (0 = Last Fragment, 1 = More Fragments) |
IPProtocol - for a full list, visit www.iana.org.
| 1 | ICMP |
| 2 | IGMP |
| 4 | IP |
| 6 | TCP |
| 17 | UDP |