W&T Com-Server++ Manual page 172

W&T
Packet types (byte TYPE)
The following three packet types are used for sending confi-
guration data:
• TYPE = 1: Writing parameters in the Com-Server
This packet is sent by the SLIP computer to the Com-
Server. The Com-Server carries out the configuration and
deletes the packet. A packet for configuring the IP address
and subnet mask would look as follows
0 1 2
TYPE LEN PARAM_NO
1 10 1
• TYPE = 2: Request for reading parameters
This packet is sent by the SLIP computer to the Com-
Server. The Com-Server sends a response type (TYPE=3)
with the contents of the requested parameters. The packet
contains the fields TYPE and LEN and a list of the desired
parameter numbers (PARAM_NO). A packet for reading the
MTU and the MAC address would look as follows:
0 1 2
TYPE LEN PARAM_NO
2 2 4
• TYPE = 3:
The Com-Server uses this packet to reply to a request for
reading parameters (TYPE=2). It is used for sending the
requested parameter contents. This packet is constructed
like TRYPE 1. The reply to a request for parameters MTU
and MAC address would look as follows:
0 1 2
TYPE LEN PARAM_NO
3 10 4
172
3 7
IP-Adresse PARAM_NO
AC 19 EF 01 2
(172.16.231.1)
3 8
PARAM_NO
16
Response to a request for reading
parameters
3 7
MTU PARAM_NO
02 00 16
(512)
Mode SLIP router
8 12
Subnet Mask
FF FF FF 00
(255.255.255.0)
8 12
MAC address
00 C0 3D 00 30 DB