Installation Guide

Changing the IPv6 Prefix Address of the CGR
Note: The following example is for replacing an installed CAM1 with a CAM3M. However,
changing the IPv6 Address also applies when: replacing CAM1 with CAM3S, replacing
CAM3M with another CAM3M, and replacing CAM3S with another CAM3S.
When replacing a CAM1 with a CAM3M in a field deployed situation, you must change the IPv6
Prefix Address of the CGR at the Dynamic Host Configuration Protocol (DHCP) server to
ensure proper communication with the Battery Powered Devices (BPDs) and Main Powered
Devices (MPDs) within the Mesh.
If you do not change the IPv6 Address, after the CAM3M is installed, it retains the old Personal
Area Network Identifier (PAN ID) and Service Set Identifier (SSID). When this occurs,
communication is lost with the Battery Powered Devices (BPDs) and Main Powered Devices
(MPDs) within the Mesh.
Important! Ensure you note the SSID of the CAM3M before installation and verify
the SSID after installation.
After the CAM1 has been powered down, verified using Putty, and physically removed from Slot
5 of the CGR. Then proceed to the following steps.
Note: Steps 1 through 3 do not affect the service, and should be done anytime before
replacing the CAM1 and upgrading the CGR.
1. Verify that each device in the CAM1 cell is registered with Field Network Director (FND) and
in an Up state.
2. Upgrade the CGR's IOS to 15.8(3)M3b via the FND, using the following commands.
Navigate to Config --> Firmware Update, select the Firmware Update Group in which
the CGR resides, click the Upload Image button. From the Upload Image box, choose
IOS-CGR from the Select Type drop-down box, choose cgr1000-universalk9-
bundle.SPA.158-3.M3b from the Select an Image drop-down box, check the Install IOx
Node from this bundle box and click the Upload Image button.
3. Create a new IPv6 prefix in DHCP server using either CPNR, or Infoblox as detailed here:
a. On the CPNR DHCPserver, create a Prefix that uses the new IPv6 base address that is to
be used by the CAM3 once it is provisioned. Assigning a new IPv6 base address causes the
CAM3 to acquire a new IPv6 address and forces the CAM3 to acquire a new PAN ID and
causes all of the devices in the Destination Oriented Directed Acyclic Graph (DODAG) to
reauthenticate.
Note: If you are unfamiliar with this process, please contact your Itron representative for
assistance.
02 March 2020 815-0080-00 Itron, Inc. Page 85 of 102
OpenWay® Riva CAM3S and CAM3M Installation Guide 7 Replacing an Existing CAM with a New CAM3S/CAM3M in the Field