My ISP(BSNL) allow me to use 2.5 GB/month for a fixed charge on day time and unlimited free usage between (2AM-8AM), after that it starts billing for each extra MB I use. My system is used by 3 users , and therefore, the internet usage normally goes above 2.5 GB. It is an ADSL Broadband 256kbps/2mbps connection. So I want to limit the down loadable data for each user at day time alone(excluding night 2AM-8AM). Is there any software available to do this job? If available please let me know the good one. Thanks in advance.