Network Router User Manual
DDNS domain name for the NAT-DDNS router, you must go to dyndns.org and register for
one.
• Verify DDNS is working by doing a manual look up the IP address using either the web or
serial interface. e router’s DDNS IP address should show up in the DDNS IP Address eld.
• Continue conguring the GRouter device in manual mode to add other 852 devices to its
channel etc.
3.7. Redundant Twin Mode Example
Redundant Twin Mode enables two GRouter or GGIa routers to operate as a redundant pair for
high availability applications. is enhanced capability increases reliability and eliminates some
single mode failure sources. is section contains step-by-step instructions on how to set up the a
pair of routers for operation in Redundant Twin Mode.
• Check the Twin Setup Page to see if the Twin IP Side Subnet/Node eld is set to 0/0. Check also
to see if the Twin LON CN Side Subnet/Node eld is set to 0/0. If not you must rst click the
Clear Twin CN Cong button. Also make sure Twin Mode is OFF.
• Set up an IP address, subnet mask, and gateway address for each router. Using a PC, ping each
router to ensure that it is communicating on the IP network.
• Set up the 852 interface (either manual or normal mode) for both the routers and add them to
the same 852 channel.
• Verify that the routers are congured correctly by checking the Channel Lists on the routers.
• Commission both routers using an appropriate network management tool.
• e GadgetGateway routers are now ready to be congured for Twin Mode. Because the
routers are connected between the same two channels a loop will be created. e automatic
loop detection on the routers will detect the loop and one of the routers will stop forwarding.
As a result the serial console will print out messages indicating such. You may disregard these
messages as the routers will automatically recover once in twin mode.
• On router A’s Twin Mode Setup Page, enter the IP address and port of router B in the Twin IP
Address and Twin IP Port elds. is should be the same IP address and port used for 852
communications by router B. is step uniquely identies B as Router A’s Twin.
• On router B’s Twin Mode Setup Page, enter the IP address and port of router A in the Twin IP
Address and Twin IP Port elds. is should be the same IP address and port used for 852
communications by router A. is step uniquely identies A as Router B’s Twin.
• On router B’s Twin Mode Setup Page, click the Sync Data From Twin button. Router B should
now display router A’s 709.1 (IP and LON CN) subnet/node addresses.
• On router B’s Twin Mode Setup Page, click the Sync Data To Twin button. Router A should
now display router B’s 709.1 (IP and non IP) subnet/node addresses. To verify go to router A’s
router A’s Twin Mode Setup Page.
• On router B’s Twin Mode Setup Page, enable Twin Mode by selecting the associated ON radio
button.
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