Raymarine QUANTUM 2 Installation Instructions Manual page 90

d. The address range 198.18.0.32 to 198.18.3.255 (inclusive) is used
by Raymarine equipment, and therefore you must ensure that any
other third-party equipment on the network is NOT set to a static
IP address in this range.
2. It may be necessary to set the DHCP setting for all of the MFDs on the
vessel to [Off]. However, the default option ([Auto]) will likely work fine in
many cases. If for any reason the third-party DHCP server starts up after
the MFD starts up, the user should manually set the MFD's DHCP switch
to [Off]. This is because, when the MFD starts up, its DHCP [Auto] feature
tries to detect if another DHCP server is already present on the network.
3. In case of failure of the third-party device, the MFDs can be easily
configured to be the DHCP server again, by setting the MFD's DHCP
setting back to [Auto].
Adding third-party Wi-Fi Access Points / Wi-Fi routers to your
Raymarine Ethernet (IPv4) network
• There is a large volume of multicast IPv4 traffic on the Raymarine Ethernet
(IPv4) network. Many consumer Wi-Fi Access Points / Wi-Fi routers simply
bridge all multicast traffic from the Ethernet interface to the Wi-Fi interface
when there are connected Wi-Fi clients. This will result not only in poor
Wi-Fi performance but also in a reduction of usable Wi-Fi spectrum to other
Wi-Fi users and vessels in the vicinity. If using a third-party Wi-Fi Access
Point or Wi-Fi router, Raymarine recommends that IGMP Snooping is
enabled on the third-party device, and additional checks are performed, in
order to ensure that your device is not bridging any unexpected multicast
traffic to its Wi-Fi interface from the Raymarine Ethernet (IPv4) network.
• Raymarine's YachtSense Link Router is pre-configured with IGMP Snooping
enabled, and therefore does not bridge internal multicast traffic on the
wired network to the Wi-Fi network. No additional configuration is required
in this respect.
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