How to generate multiple scrambled halton sequences?

I would like to use scrambled halton sequences. Manual says I can do it, e.g.,

p=haltonset(3);
p1=scramble(p,'RR2');
p1n=net(p1,100);

I tried to have another different scramble halton sequence by invoking scramble command again:

p2=scramble(p,'RR2');
p2n=net(p2,100);

Then I got, however, the same point sets p2n as p1n. Can I need any additional command to have another differently scrambled halton set?