re: IRC-server
Well you said irc server not me. smile~


re: the rest
Network byte order is simiply the order in which bytes of a larger value occur, its also called Bigendien (Most significatnt byte first to least significant byte last)
FYI the x86 processors use LSB to MSB order (the opersite)

Simply put , take a value and convert it to its equivilant 4 byte binary value, then order the bytes with the most significant byte first

examples
7 = 0 0 0 7 = 0 x 256^3 + 0 x 256^2 + 0 x 256 + 7
1678052209 = 100 5 11 113 = 100 x 256^3 + 5 x 256^2 + 11 x 256 + 113

The order shown here is the order they need to be transmitted in.

Hope this helps.