I "stumbled" upon a setting in the latest Merlin FW release. I'm wondering if it might resolve the issue of OPEN NAT being seen on two game consoles (Xbox One / Xbox Live) playing the same game (COD:BO3). Right now, only one gaming console is able to achieve Open NAT in the game while the other console shows Moderate NAT or Strict NAT in the same game.
Wan >> Virtual Server / Port Forward >> Famous Game List.
I see Xbox Live is one of the available choices. When selecting Xbox Live, it populates the 'Service Name' (Xbox Live), 'Port Range' (3074), 'Local IP' (Xbox One S IP Address), 'Protocol' (BOTH).
After doing some research regarding Xbox Live ports used for Call of Duty: Black Ops 3, I found ports 53 and 3074 are used for TCP and UDP (seems the only two ports used for both TCP and UDP).
I went ahead and put both Xbox One gaming consoles in port forwarding. Xbox One S (.120) using port 3074 and Xbox One Elite (.121) using port 53. I haven't tested anything out as of yet, and I'm not sure this would even resolve the issue every is experiencing with Open NAT being seem on two game consoles playing the same game. I figured the NETWORKING GURUS would / could chime to provide their thoughts / opinions.
When it comes to "ADVANCED" networking settings, it can get a bit overwhelming trying to understand how things work with selected settings.
Thanks or replies (and providing me a learning opportunity).
