The default ntpcap.ini file creates 4 devices (if 4 ports are available), named napa0, napa1, napa2 and napa3. Each device has one filter assigned and both RX and TX capabilities.
Contents of ntpcap.ini
This is the contents of the default ntpcap.ini file:
# Napatech default ntpcap.ini file # Note that you might have less than 4 ports on your system. # If this is the case, then napa1 and/or napa2 and/or napa3 # will be silently ignored when using this default config file. [Common] Ntpl1 = "Assign[StreamId=252]=Port==0" Ntpl2 = "Assign[StreamId=253]=Port==1" Ntpl3 = "Assign[StreamId=254]=Port==2" Ntpl4 = "Assign[StreamId=255]=Port==3" [napa0] StreamId=252 Tx=0 [napa1] StreamId=253 Tx=1 [napa2] StreamId=254 Tx=2 [napa3] StreamId=255 Tx=3