Motorola 3.1 User Manual

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Mesh Enabled Access 
 
Vehicle Mounted Modem Users Guide 
3 Device Configuration 
3.1  IP Addressing Considerations  
The VMM provides network access to one or more IP devices connected to the Ethernet port of 
the VMM. In order for the VMM to provide service to the IP devices, some configuration must be 
done prior to connecting the IP devices. 
The local default gateway address is used only on the wired interface, and is only visible to the 
attached IP devices.  It is not advertised to the wireless network, and the network cannot access 
the VMM using this gateway address. The VMM has another IP address for the wireless 
interface that can be used to access the VMM from the network. Because the gateway address 
is limited to the local wired interface, the same address could be used for the gateway service in 
several VMM devices. The local gateway should be a part of the overall subnet chosen for your 
MEA network.   
Care must be taken to ensure that the selected IP address is on the same subnet and does not 
conflict with any other devices or the chosen Local Gateway service address on the MEA 
network.  
3.2  Accessing the MEA Device Administration Web Pages 
To modify the IP configuration for the VMM using the web interface, you must know the IP 
address assigned to the VMM SBC.  The mechanism for assigning the IP address is controlled 
by the addressing mode of the VMM SBC.  Regardless of the mechanism, the assigned IP 
address can always be displayed using MeshManager. 
If the factory setting is used, then the default addressing mode will be Remote DHCP, and the 
VMM SBC IP address will be assigned by the network DHCP server.  
If the SBC addressing mode was changed to Statically Provisioned,  and an IP address was 
entered, then the entered IP address will be used. 
If the SBC addressing mode was changed to Statically Provisioned, but no IP address was 
entered, then the default SBC IP address will be derived from the transceiver MAC address 
(10.xx.yy.1, where the MAC address is 00:05:12:0A:XX:YY), similar to the default IP addresses 
described in 
. XX and YY are hex values from the transceiver MAC 
address, and the lowercase xx and yy are the same values in decimal. For example, a VMM 
with a transceiver MAC address of 00:05:12:0A:80:20 would have a default SBC IP address of 
10.128.32.1. 
When the IP address is known, the device web page can be accessed by pointing your web 
browser to the IP address of the VMM SBC.  For example, if the VMM SBC address is 
10.128.32.1, then the web page would be found at http://10.128.32.1/. 
 
3.2.1  Administrator and Access Account Information 
The device has two accounts for the web pages - an administrative account, and an access 
account
. The administrative account must be used for provisioning the device, and the access 
account may be used for monitoring the status of the device.  
NOTE: If you are running a VMM as a standalone device, the configuration web page can be 
reached by connecting a PC to the wired interface. The installation procedure described here 
requires administrator access. Alternatively, all of the parameters that are provisioned via the 
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