Throttling Blizzard's Downloader App
So I caved and downloaded StarCraft 2. Or.. well I'm downloading it now.
One thing I noticed is that it's doing the peer-to-peer distribution method via Bittorrent.
Nice. Except their app doesn't allow you to throttle upload speeds. Suck.
And once your upload is saturated your download slows to a crawl. Super suck.
Since I don't have QoS settings on my airport (thanks Apple),
I had to opt for local bandwidth throttling. Fortunately my Mac OS ships with
ipfw (thanks Apple!). Here's the quick and dirty on how to do it. :)
# set up a pipe with your max speed sudo ipfw pipe 1 config bw 40KByte/s # send all outgoing traffic running to # Blizzard's BattleNet port through your pipe sudo ipfw add 1 pipe 1 dst-port 3724 >>>00001 pipe 1 ip from any to any dst-port 3724 sudo ipfw show >>>00001 104027 103045648 pipe 1 ip from any to any dst-port 3724 >>>65535 3350789 3309133858 allow ip from any to any # delete pipe when done sudo ipfw delete 1 sudo ipfw show >>>65535 3393042 3351064847 allow ip from any to anyThat's it. All done. Right from the command line. When your download is complete just clear out your rule.