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M2M Cellular Gateway
Use default value for those parameters that are not mentioned in the table.
Configuration Path
DDNS
Provider
Host Name
Username / E‐mail
Password / Key
Scenario Operation Procedure
In above diagram, the Gateway is the gateway of Network‐A and the subnet of its
Intranet is 10.0.75.0/24. The gateway has the IP address of 10.0.75.2 for LAN interface
and gets a dynamic IP 118.18.81.33 for WAN‐1 interface. It serves as a NAT router.
Configure the required parameters for DDNS function by referring to above setup
example. When the gateway has booted up and has gotten a dynamic IP address for the
WAN interface, the DDNS agent in the gateway tries to request the DDNS server with
the mapping between the domain name and the obtained WAN IP address of the
gateway.
The DDNS server broadcasts the mapping to other DNS servers for DNS hosting service
in the Internet world. So, other hosts in the Internet can link to the gateway by using
the domain name.
Once the gateway has dynamically changed its WAN IP address from ISP, the DDNS
agent tries again to request the DDNS server with the re‐mapping between the domain
name and the new WAN IP address of the gateway.
The DDNS server broadcasts again the new mapping to other DNS servers for DNS
hosting service in the Internet world.
Finally, other hosts in the Internet can still link to the gateway by using the domain
name, even the WAN IP address of the gateway has changed.
Index skipping is used to reserve slots for new function insertion, when required.
[Dynamic DNS]‐[Dynamic DNS]
■ Enable
No‐IP.com
JP‐NB
Chinghuihsieh
ddnspassword
129
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