An IPX Diagnostic Responder reply packet contains the following fields:
| Minor Version (1 byte) | This field contains the first digit of the IPX Diagnostic Responder version that is responding. | ||
| Major Version (1 byte) | This field contains the second digit of the IPX Diagnostic Responder version that is responding. Servers use version 1.0; clients use version 1.1. | ||
| SPX Diagnostic Socket (2 bytes) | This field contains the socket number to use for SPX diagnostic queries. | ||
| Number of Components (1 byte) | This field contains the total number of network components listed in the next field. | ||
| Component IDs (1 byte each) | This field contains the component IDs of the responding device's primary network components. (If the field includes component ID 6, this device is a server or a router.) | ||
| Component ID: 0 | IPX/SPX stack | ||
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Component ID: 1 | Router driver (also used to get to internal IPX network address) | ||
| Component ID: 2 | LAN driver | ||
| Component ID: 3 | Shell | ||
| Component ID: 4 | Value-added process | ||
| Component ID: 6 | Server or router | ||
| Component ID: 9 | DOS application | ||
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Number of Local Networks (1 byte) | This field contains the addresses of all networks to which the responding device is attached, including the MAC address used to access a particular network. | ||
| Local Network Type (1 byte) | This field contains information about whether the responding device's local network is an internal or external IPX network. (In Figure 2, the internal IPX address of RTR4X is 0xAA-AA-AA-01, which the network analyzer defines as a virtual, or internal, network interface board. The two networks attached to the server are 0x00-00-11-11 and 0x-00-00-22-22.) | ||
| Network Address 1 (4 bytes) | This field contains the 4-byte address of the internal or external IPX network. | ||
| Node Address 1 (6 bytes) | This field contains the MAC address of the network interface board that is attached to the network with the address defined above. (Node address 0x00-00-00-00-00-01 always belongs to the internal IPX network.) | ||