Equal Bandwith from internet for all

Hi everybody, i 've seen this scripts, from
http://wiki.mikrotik.com/wiki/PCQ_Examples and http://www.mikrotik.com/testdocs/ros/2.9/root/queue_content.php#6.54.6.3

/ip firewall mangle add chain=forward src-address=192.168.0.0/24 action=mark-connection new-connection-mark=users-con
/ip firewall mangle add connection-mark=users-con action=mark-packet new-packet-mark=users chain=forward

/queue type add name=pcq-download kind=pcq pcq-classifier=dst-address
/queue type add name=pcq-upload kind=pcq pcq-classifier=src-address

/queue tree add name=Download parent=Local max-limit=1024000 priority=1
/queue tree add parent=Download queue=pcq-download packet-mark=users

/queue tree add name=Upload parent=Public max-limit=256000 priority=1
/queue tree add parent=Upload queue=pcq-upload packet-mark=users

with two options:

1.-if you don’t like using mangle and queue trees, you can skip step 1 (mark ), do step 2, and step 3 would be to create one simple queue as shown here:

/queue simple add queue=PCQ_upload/PCQ_download target-addresses=192.168.0.0/24

2.-If your ISP cannot guarantee you a fixed amount of traffic, you can use just one queue for upload and one for download, attached directly to the interface:

/queue tree add parent=Local queue=pcq-download packet-mark=users
/queue tree add parent=Public queue=pcq-upload packet-mark=users

Can you help me with my best option?
My network is this:

Internet (Router ADSL4Mb from ISP)-------cable-----PC SquidProxy (10.0.0.3)------cable----RB532A(10.0.0.2)–)))))-wireless-((((-- clients (10.0.0.0/8)

If we consider that the 4Mb are not guaranted, and that the conection between clients are permited and we don’t queue them. Is the best option the number 2? changing the first line like this:

/ip firewall mangle add chain=forward src-address=10.0.0.0/8 dst-address=10.0.0.3

Many thanks,

To exclude proxy from bandwidth limit, add queue simple to the first place,
target-address=all_clients dst-address=proxy_address.


Use PCQ without specifying limit, if you aren’t sure about 4Mbps availability.