R4600 whitelist multiple udp ports

> Please help me whitelist multiple udp ports. [...]

   I don't know what that means.  Is there some actual problem which you
are trying to solve?

> [...] When I try to add more than one it gives an error.

   "try" _how_, exactly?  "add" to _what_?  Are there words in this "an
error"?  Care to share?

   None of that is a useful problem description.  It does not say what
you did.  It does not say what happened when you did it.  As usual,
showing actual actions (commands) with their actual results (error
messages, LED indicators, ...) can be more helpful than vague
descriptions or interpretations.

> Also the model number is R4600

   It is?  Look for "Model" on the product label.

   Visit http://netgear.com/support , and put in your model number.  Do

_you_ get anything from "R4600"?