you might need to turn off your firewall and run wireshark or other software to determine your own appropriate limits. i dont know (and have never had need to look) at what is going on at this level. i am guessing that the number of packets will vary greatly dependig on the size of your campaign and its associated ruleset data.
what is a package? if it is packets then this number is massively inadequaqte. if you have a player connecting to your campaign for the first time and you campaign data is 5MB (not at all large) then you could easily be sending 5000 packets in the first 10mins. i have no idea how many packets would be being received by your computer but again i would suggest that it would likely be at least 5% of that being sent(requests and posssibly acknowlegements and then also the local player data being sent back).
if you have 2 players connecting you would need double that.
then you have plenty of data transfer as the game is played - certainly more than 6 packets per hour... probably, safely hundreds of times that number.
when you are hosting a game you are acting as a server. its like at home you might get 3 visitors a day while at work at grand central station you get 250,000 people come by.