Mushroom Networks Documentation

LAN Configuration Guidelines

Changing the Default LAN IP

By default, the LAN interface of the BBNA is assigned the IP address This is the IP address through which the BBNA Management Interface is accessed. It is possible to change the IP address of the BBNA LAN interface. This should be done with extreme care, as changing this will affect the manner in which the BBNA Management Interface is accessed. In particular, it is important to remember the IP address assigned to the BBNA LAN. It will not be possible to access the BBNA Management Interface without this information.

In order to set the BBNA LAN IP address, click on the HOME tab of the BBNA Management Interface. In the LAN configuration table, in the “Interface” column, click on the link “LAN”, highlighted with a red circle below.  A prompt appears requesting an IP address be entered, also shown below.  If the value is changed for this IP address, it is imperative that the new value be remembered. The network mask for the BBNA LAN can also be set here (“Mask”). By default, the network mask is set to

here are several ways the BBNA LAN ports can be configured:

  • As a regular Ethernet connection
  • Using an Ethernet switch
  • With a Router
  • Pass Through mode

Using the LAN as a regular Ethernet connection:

Connect an Ethernet cable to any of the LAN ports of the BBNA and attach the other end of the Ethernet cable to a PC/Laptop which is to be provided bonded Internet access. Other PC/Laptops can plug into the other LAN ports of the BBNA:

Using the LAN with a Router:

Connect the WAN/Internet port of the router to one of the BBNA LAN ports.  The DHCP server in the BBNA should be enabled to assign the router/firewall an IP address.  The DHCP server in the router/firewall should also be enabled for the host computer devices which are attached to the router/firewall through the LAN ports of the router/firewall.  It may be necessary to configure the DHCP server of the router/firewall to set the DNS server address for its clients to the IP address of the BBNA (by default this is set to rather than the IP address of an external DNS server:

Alternatively, one of the BBNA LAN ports can be connected to a LAN port on the router.  In this case, the DHCP server will need to be disabled on the router so it does not conflict with that of the BBNA. With this configuration, UPnP support is available:

Using the LAN with Pass Through mode:

The BBNA device is inserted in-line between the legacy modem/gateway and the router/firewall. The legacy modem is connected to WAN port 1 of the BBNA and the router/firewall is connected to the LAN port of the BBNA. Additional modem/gateways for the network are connected to other WAN ports of the BBNA. The following illustration depicts the network after installation of the BBNA:

The BBNA can first be configured by plugging a PC into one of the LAN ports of the BBNA and accessing the BBNA Management Interface. After the BBNA is appropriately configured, the BBNA Management Interface can be accessed by any PC on the Local LAN.

It should be noted that when the BBNA is configured in Pass Through mode, the DHCP server within the BBNA will be disabled. Therefore, it will generally be necessary to manually assign a static IP address to the PC through which the BBNA Management Interface will be accessed. 

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