Limiter would be an easy way to go.
Go to the Firewall>>>Traffic Shaper option
Create a limiter, name it "in", type in the connection speed. Save it and enable it.
Create another limiter, name it "out", type in the connection speed. Save it and enable it.
Create an alias with all the ip's you want in Firewall>>> Aliases
Name it, save it.
Go to firewall>>>Rules>>>Floating
Create a new rule. Traffic type ANY, select the interface you'd like to limit, Set the alias as the source, scroll down click advanced next to in/out, set the first to in, the second to out.
That should work if I didn't forget something.
Go to the Firewall>>>Traffic Shaper option
Create a limiter, name it "in", type in the connection speed. Save it and enable it.
Create another limiter, name it "out", type in the connection speed. Save it and enable it.
Create an alias with all the ip's you want in Firewall>>> Aliases
Name it, save it.
Go to firewall>>>Rules>>>Floating
Create a new rule. Traffic type ANY, select the interface you'd like to limit, Set the alias as the source, scroll down click advanced next to in/out, set the first to in, the second to out.
That should work if I didn't forget something.