Connectivity requirements – Comtrol DeviceMaster NS-Link User Manual
Page 66
66 - Troubleshooting and Technical Support
DeviceMaster Driver User Guide: 2000595 Rev. A
Connectivity Requirements
Connectivity Requirements
An Ethernet connection: either to an Ethernet hub, switch, or router; or to a
Network Interface Card (NIC) in the host system using a standard Ethernet cable.
See the DeviceMaster Installation and Configuration Guide (Page 7) for
information regarding hardware installation.
Can ping the Comtrol
device, but cannot open
the ports from a remote
location.
(You must have
previously programmed
the IP address, subnet
mask, and IP gateway.)
The NS-Link driver uses Port 4606 (11FE h) to
communicate with the DeviceMaster.
When using a sniffer to track NS-Link packets,
filtering for Port 4606 will easily track the packet. The
packet should also contain the MAC address of the
DeviceMaster and the originating PC so that it can be
determined if the packet is able to travel the full
distance one way or not.
If the 4606 packet is found on one side of a firewall or
router, using sniffer, and not on the other side, then
that port needs to be opened up to allow the 4606 to
pass.
This will most often be seen with firewalls, but is also
seen in some routers.
Cannot ping the device
through Ethernet hub,
switch, or router
Isolate the DeviceMaster from the network. Connect
the DeviceMaster directly to the NIC in the host
system (see
Cannot ping or connect
to the DeviceMaster
The DeviceMaster family default IP address is often
not accessible due to the subnet masking from another
network unless 192.168 is used in the network.
In most cases, it will be necessary to program in an
address that conforms to your network.
If you do not use the NS-Link driver to program the IP
address, you only have 10 seconds to disable the
bootloader with Redboot to get into the setup utility.
See the DeviceMaster Installation and Configuration
Guide (Page 7) for the Redboot method of programming
an IP address.
General Condition
Explanation/Action
Product Type
Connected to Connector Name
DeviceMaster RTS 1-port
Hub, switch,
router, or NIC
10/100
ETHERNET
DeviceMaster RTS Embedded
Hub, switch,
router, or NIC
RJ45 port (not
labeled)
DeviceMaster RTS 2-port 1E
NIC
10/100
Hub, switch, or
router
DeviceMaster RTS 2-port 2E
NIC
10/100 1E/2E
Hub, switch, or
router