Comtrend Corporation NexusLink 3120 User Manual page 226

ENABLE PPP DEBUG MODE
When this option is selected, the system will put more PPP connection information
into the system log. This is for debugging errors and not for normal usage.
ENABLE MLD MULTICAST PROXY
Multicast Listener Discovery (MLD) is a component of the Internet Protocol Version
6 (IPv6) suite. MLD is used by IPv6 routers for discovering multicast listeners on a
directly attached link, much like IGMP is used in IPv4. The protocol is embedded in
ICMPv6 instead of using a separate protocol.
ENABLE MLD MULTICAST SOURCE
Click to allow use of this WAN interface as Multicast Listener Discovery (MLD)
multicast source.
Enable WAN interface with base MAC
Enable this option to use the router's base MAC address as the MAC address for this
WAN interface.
STEP 3: Choose an interface to be the default gateway.
Click Next to continue or click Back to return to the previous step.
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