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Block Internet Download Manager (IDM) in Cyberoam

Applicable Version: 10.00 onwards


Internet Download Manager (IDM) is a Multi threaded application which breaks a file into many small parts and starts downloading all parts simultaneously. This increases download speed by up to 5 times. Comprehensive error recovery and resume capability restarts broken or interrupted downloads due to lost connections, network problems, computer shutdowns, or unexpected power outages. Simple graphic user interface makes IDM user friendly and easy to use. Internet Download Manager has a smart download logic accelerator that features intelligent dynamic file segmentation and safe multipart downloading technology to accelerate your download.


Create an Application Filter Policy to block IDM.


Web and Application Filter Module is subscribed.


You can IDM by following steps given below. You must be logged on to the Web Admin Console as an administrator with Read-Write permission for relevant feature(s).

Step 1: Create Application Filter Policy

Go to Application Filter > Policy > Policy and click Add to create a new policy with parameters given below.

Click OK to create the policy. 


Applianceis shipped with the following predefined policies for applications: Allow All and Deny All. These two predefined policies are immediately available for use until configured otherwise. You can also define custom policies to define different levels of access for different users to meet your organization’s requirements.

Step 2: Add Rules to Policy

Go to Application Filter > Policy > Policy and select the policy created in step 1. Click Add to add rules in the policy according to parameters given below.




Application Filter Criteria


File Transfer

Select the category of applications that are to be selected

List of

Matching Applications

Select Individual Application

Based on the Application Filter Criteria, applications are listed.


Search for

Multi Thread File Transfer

Select the Application you wish to allow/block.



Select the Action: Allow OR Deny.


All the time

Select the Schedule from the list of Schedules available


Click OK to add rule to policy.

Click OK to save the policy.

Step 3: Apply Policy to Firewall Rule or User/User Group

Firewall Rule

You can apply the policy through a Firewall Rule such that it is applied on all traffic that hits on that rule. To create a Firewall Rule, go to Firewall > Rule > Rule and click Add. As shown below, apply the Policy created in step 1.

Click OK to create the Firewall Rule.

User/User Group

You can apply the rule to individual users or user groups. Here, as an example we have applied the rule on a user named John Smith. To apply the policy on an individual user, go to Identity > Users > Users and click the user on whom policy is to be applied, i.e., John Smith. As shown below, apply the Policy created in step 1.

Click OK to apply policy on the user.




                                                                                                                                                                        Document Version: 2.0 – 24 June, 2014
Article ID: 2194