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CM751B
Installer Reference Guide
Figure 16: Using the IP Resolution Server Tool
Port Forwarding and IP Address Reservation
This is by far the most likely place where errors can be
made due to the fact that there are so many different
routers in the market place.
Essentially to gain access remotely to the CM751B for an
upload/download session the client's router will require
a rule to be created that opens and directs all IP traffic
coming into the router for port 07701 (default IP RAS Port)
to the internal IP address of the CM751B which is pro-
grammed in MENU 6-6-0 on the Solution 144.
Figure 17: Static Public IP Address Option
You will also need to make sure that the DHCP server is
configured to reserve or lock down the IP Address which
was assigned to the CM751B module when it was first
connected to the LAN. See the Module IP Address loca-
tion which is MENU 6-6-0 on the Solution 144 panel.
If the port forwarding is not correctly setup
i
then you will not be able to connect to the
Note
panel remotely via IP. Dial up RAS connections
are not effected and can still be used.
8
UDP Protocol Options
Before connecting to a remote panel the installer needs
to decide between one of two internet protocols UDP or
TCP. UDP (User Datagram Protocol) is a connectionless
protocol.
The packets of exchanged data are smaller and with less
overhead however the IP network does not guarantee re-
ceipt. Although UDP is connectionless, the RAS software
application confirms delivery of each packet so although
the layer does not guarantee delivery, the application
does so there should be no concerns using UDP as a trans-
port method. TCP (Transmission Control Protocol) is one
of the main protocols in IP networks. TCP establishes a
full connection to exchange streams of data between two
points and the network guarantees delivery.
Which protocol should you use? If you are able to allocate
and open more than a single port at an installation or If
you intend to remote connect to sites using multiple PCs
that are part of an office network or behind a firewall then
you would be best served by selecting TCP as your pre-
ferred connection method.
If however you are at a site that will only allow you to
open a single port and your reporting format is TCP based
like the CSV IP format, then you have no choice but to
select UDP for RAS connections. UDP transactions are
faster but depending on your network you may need to
marshal packets (port forward) to the PC running Solution
Link RAS software. By default the CM751B is configured
for Remote Access using TCP/IP protocol.
Figure 18: Configuring UDP Remote Connections
Bosch Security Systems 5/13 CM751BIRG FTR1.0
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