dblink / Insert several records into remote table

Hello

I'd like to use dblink to insert records (several) from a local table to a
remote table. Is it possible to do this in one statement? Something like:

insert into <remotetable> select col1, col2, col3 from <localtable>

Can someone give me an example or tell me what commands to use? What I have
so far:

l_connect_str = 'hostaddr=192.168.10.21 port=5432 dbname=db1
user=postgres password=test';
perform public.dblink_connect('con1', l_connect_str);

...

perform public.dblink_disconnect('conn1');

P.S: I could "pull" the data (select) from the remote DB using dblink, but
I prefer to "push" the data (insert) from the local DB to reduce the
network traffic.

Thanks,
Peter