Swetha K V1
and Ravi Dara2
1Department of Computer Science & Engineering, CMR Institute of Technology,
Bangalore, India
2Nevis Networks(I) Pvt.Ltd., Pune, India
ABSTRACT
After tightening up network perimeter for dealing with external threats, organizations have woken up to the
threats from inside Local Area Networks (LAN) over the past several years. It is thus important to design
and implement LAN security strategies in order to secure assets on LAN by filtering traffic and thereby
protecting them from malicious access and insider attacks. Banking Financial Services and Insurance
(BFSI) industry is one such segment that faces increased risks and security challenges. The typical
architecture of this segment includes several thousands of users connecting from various branches over
Wide Area Network (WAN) links crossing national and international boundaries with varying network
speed to access data center resources. The objective of this work is to deploy LAN security solution to
protect the data center located at headquarters from the end user machines. A LAN security solution should
ideally provide Network Access Control (NAC) along with cleaning (securing) the traffic going through it.
Traffic cleaning itself includes various features like firewall, intrusion detection/prevention, traffic anomaly
detection, validation of asset ownership etc. LANenforcer (LE) is a device deployed in front of the data
center such that the traffic from end-user machines necessarily passes through it so that it can enforce
security. The goal of this system is to enhance the security features of a LANenforcer security system with
Intrusion Prevention System (IPS) to enable it to detect and prevent malicious network activities. IPS is
plugged into the packet path based on the configuration in such a way that the entire traffic passes through
the IPS on LE.
KEYWORDS
LAN security, LANenforcer, IPS, Security hardware, Multi-core processor
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