John McKernon Software
 
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Lightwright’s networking feature is easy to use, but first your computers have to meet some very specific setup conditions:

NETWORKING LIGHTWRIGHT®

  1. • All of the computers must be on the same network subnet. That means that the first three groups of numbers in their IP addresses must match.

For example, two computers whose IP addresses are 123.145.89.1 and 123.145.89.2 are on the same subnet, but 123.145.89.1 and 123.145.50.2 are not.

  1. • Port 24695 must be open for TCP

  2. • Port 24696 must be open for UDP

  3. • The network routers must support multicasting.

  4. • The network must permit UDP Multicasting using the Class D address 239.192.0.1

  5. • All computers must be within 32 network “hops” (a.k.a. “Time to Live”) of each other.