SELF DEFENDING NETWORKS

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SELF DEFENDING NETWORKS

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The Self Defending Networks have enough intelligence to identify threats and to treat the security breaches by recoganising the limit or extend of damage done. This is by encorporating the required intelligence into its routers and switches and by making use of specific zones, which treats the affected user accordingly.

The Self Defending networks make use of a quarantine zone. Any user who is restricted acssess to the network enters the quarantine zone and depending on the quarantine zone handles the culprit according to the type and nature of his access breach. There are two ways in which the quarentine zone treats the culprits:

i. Either it can treat the access breach by denying total network access to the user.
ii. Or it may offer limited services and not cutting him out totally. Those users who are restricted access to the network are given the option of downloading the latest version of the anti-virus software/s currently available.


For example, suppose an unsuspecting person uses an infected laptop to try and login to his company’s website. Here the SDN not only informs the user that his system is infected , but also gives him the option of downloading the latest version of the required software inorder to protect his system from such similar attacks in future.

Thus, the SDN prevents the entry of viruses and worms by keeping a clear end point.i.e prevents external attacks.Now in case of an internal attack,.i.e if ever a system or network does manage to get into an SDN, the SDN prevents spread of the virus to other systems by identifying the infected systems and preventing all communication between these and the uninfected ones.

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