I do not have ifb installed on my kernel and i do not know how to install. There is no web where i can find information. Can anybody help me?
Answer: It is part of the standard kernel starting with 2.6.12.
To enable it you need to enable:
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Short list of conferences with Linux networking related attendees:
In the "Delaying only some traffic" section of this page, the following code is given as an example of how to create a delay to just one ip address:
Page based on Documentation/networking/ip-sysctl.txt.