[clug] Set TCP window size for specific incoming protocols?

[Michael Still]

Hey folk,

I have a firewall with a slow connection. I would like to limit the rate 
at which incoming packets for FTP hit the ISP side of my firewall. Because 
these packets are coming from the ISP, it strikes me that what I really 
want to do is set a relatively small size for the TCP window for these 
connections.

Does anyone have pointers on how to do this? I've had a look with google, 
and can see anything relevant, and the iptables man page (which is 
probably the wrong tool) doesn't seem to have anything either.

Any pointers greatly appreciated.

Cheers,
Mikal

-- 

Michael Still (mikal at stillhq.com) | "All my life I've had one dream,
http://www.stillhq.com            |  to achieve my many goals"
UTC + 10                          |    -- Homer Simpson