INT 61 U - PC/TCP kernel v2.05 - GET CONFIGURATION INFORMATION
        AH = 2Ah
        DS:SI -> 26-byte buffer for configuration information (see below)
Return: CF clear
        AX = 0000h
        buffer filled
SeeAlso: INT 61/AH=00h"PC/TCP"

Format of configuration information:
Offset  Size    Description
 00h    BYTE    maximum TCP connections available
 01h    BYTE    maximum UDP connections available
 02h    BYTE    maximum IP connections available
 03h    BYTE    ???
 04h    BYTE    number of TCP connections currently in use
 05h    BYTE    number of UDP connections currently in use
 06h    BYTE    number of IP connections currently in use
 07h    BYTE    ???
 08h    WORD    number of local network descriptors active
 0Ah    WORD    number of global network descriptors active
 0Ch    BYTE    ???
 0Dh    BYTE    ???
 0Eh    WORD    ???
 10h    WORD    ???
 12h    DWORD   ???
 16h    DWORD   IP broadcast address