WSN

Configuration of the WSN network

The configuration of the WSN network is primarily the configuration of the IP parameters, the physical layer and the RPL parameters are configured in another sections.

screenshots/Config-WSN-IP.png

• Prefix : The prefix is the network wide prefix, all address sharing this prefix are considered on-link.
• Prefix length : Significant bits of the prefix, should be 64 in most configuration.
• 6lowpan context : Prefix associated with the 6LoWPAN Context 0 (see below)
• Address autoconfiguration : If enabled, the 6LBR address on the WSN network will be created by combining the Prefix and the WSN IID (i.e. the converted MAC-64 address). If disabled, the manual address is used.
• Manual address : The 6LBR address on the WSN network if address auto configuration is disabled.
• DNS Server : Address of the DNS server to be used when the DNS Proxy functionality is used.
• Filter Node : If enabled, nodes that are not registered in Node Config are not allowed to join the network.

In addition, if 6LBR is running in NDP Router mode, the RA Daemon can be used to auto configure the network instead of using RPL.

6LoWPAN Context

6LoWPAN can compress IPv6 packet by replacing commonly used address prefix with an context id. Currently Contiki and 6LBR uses only one statically configured context. All the element in the network therefore must use the same context configuration.

In mid-march 2016, Contiki has changed its default context from aaaa::/64 to fd00::/64, it is mandatory to reflect this change in 6LBR or no proper communication with the node can happen.