Edimax Technology 3G-6200nL - Manual (Page 118)

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You also have to select the type of Internet services that will be applied to
this access control rule from the list:
You can select multiple services here. If you wish to deny or allow all
services of certain IP address(es), please select both ‘TCP’ and ‘UDP’.
If the service you wish to deny or allow is not listed, you can use ‘User
Define Service’ table to add a new service of your own: