RMS compact
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value “255” is assigned to octets that belong to the network ID, and the value “0” is assigned to octets that
belong to the host ID.
For the example above, if you want all the devices on the subnetworks to receive each other’s IP packets, set
the subnet mask to 255.255.0.0. If you want the devices on a single subnetwork only to receive IP packets from
other devices on its own subnetwork, set the subnet mask to 255.255.255.0 for the devices on that subnetwork.
Subnet Mask
Routing and Filtering
0.0.0.0
IP packets are transmitted to all devices.
255.0.0.0
IP packets are only transmitted to devices
whose IP address’s first octet matches the
sender’s IP address’s first octet.
255.255.0.0
IP packets are only transmitted to devices
whose IP address’s first two octets match the
sender’s IP address’s first two octets.
255.255.255.0
IP packets are only transmitted to devices
whose IP address’s first three octets match
the sender’s IP address’s first three octets.
Gateways
Gateway, also referred to as a router, is any computer with two or more network adapters connecting to different
physical networks. Gateways allow for transmission of IP packets among networks on an internetwork.
Troubleshooting
Problem:
The TES (Terminal Emulation Software) does not display anything.
Solution:
Make sure the Dipswitch is set correctly. Switch 1 is ON when DOWN and Switch 2 is
UP.
This applies only when you power up.
Make sure the TES’s communication parameters are correct.
They should be 38400 baud
rate, no parity, 8-data bits, and 1 stop bit.
Make sure the ends of the NC-CFG cable are plugged into their respective ports.
The ends of the cable indicate which belongs to the CPU and which belongs to the RMS
compact
.
The end of the hooded cable nearest the label belongs to the CPU, and the end farthest away
belongs to the RMS compact
.
If DIP switch set correctly and cable correctly connected, power off/on the
RMS
compact
and the main menu should be displayed.
PROBLEM:
The NMS cannot ping the RMS compact
.
Solution:
Make sure the network connection to the
RMS compact
is good.
Solution:
Make sure the cable is in good condition.
Solution:
Try pinging the
RMS compact
from another computer on the same network segment as
the
RMS compact
.
Solution:
Make sure to set the Community String [Set Access Controls, Type 2, Set 1 through 4].
Follow these steps:
Name the community with any lowercase name. (A UPS monitors a designated community.)
Solution
Make sure to set the Manager Table. Set Access Controls, Type 3, Set 1 through 4].
Follow these steps:
Define the Manager IP Address, Community string, and Access Permission together.
The trap manager’s community should be the same name as the name of the community it
monitors.
The trap manager’s status is set to Accept YES to enable sending TRAPs or to Accept to No
to disable.