Different IP Groups for different networks

[asadsq]

I want to create different IP based groups so that I may assign different settings according to that group.
For example

Group1
172.16.1.x For Officers

Group2
172.16.5.x For officials

Group3
172.16.8.x For Hostels

and so one
So according to this group settings i will allow the bandwidth, accessing of audio/video site.

So i just need help how I may configure these groups

Regards
Asad

[asadsq]

Let me add few more data

Group1
172.16.1.x For Officers

In this group i want to limit and add some restrictions along with bandwidth limitations. So that other group may not be effected with these settings

So I want to repeat this for each group with different policies/restrictions. Keeping these all factors, I need help that how to create or define these IP groups and how restrictions be added in each group

[Kloschüssel]

You'll need:

1] dhcp server(s) that assign(s) correct ip's to the hosts within the subnets
2] a firewall that marks packets based on subnets
3] a traffic shaping tool that decides some fancy packet priority based on the marks done at step 2]; basically just QoS that can be configured with tc; tc knows about qdisc with some algorithms and the one you want is htb

[asadsq]

I just need the sequence or the layout of defining ACL's that how they wil appear and how they are placed within Squid

[Kloschüssel]

squid is a proxy and afaik it doesn't fulfill all your requirements:

1] squid is no dhcp server
2] squid is no firewall
3] squid is no traffic shaping tool