Sanchit Agrawal
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Sanchit Agrawal

15+ Years of Professional experience in Network Security implementation, Design and Operations. Good understanding to Firewalls (Checkpoint, Palo Alto, Cisco ASA, FortiGate, Juniper Net screen and SRX), Proxies (Bluecoat, Zscaler, McAfee etc), Cisco ISE, F5 (LTM & ASM), IPS/IDS, Router & Switches, Cyber Security, NAC, Various Monitoring tools and A10 products.

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How Proxies Work at OSI Layers 3, 4, and 7

Introduction Proxies are often described in simple terms as “devices that sit between clients and servers.”However, in real enterprise networks, how a proxy behaves depends heavily on the OSI layer at which it operates. A proxy can function at: Each layer provides different visibility, control, performance, and security capabilities. Understanding proxy behavior at OSI layers […]

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