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Engineering
March 17, 2026
9 min read

Fragmentation Strategies for Deep Bypass

#Fragmentation#Bypass#DPI

Fragmentation Strategies for Deep Bypass

If a firewall is looking for the "forbidden" word in a packet, the simplest solution is to cut that word in half.

Strategic Slicing

By fragmenting the initial data exchange into small, non-standard sizes, we force the firewall to either buffer and reassemble the traffic (expensive) or let it pass (common).

Beyond Simple Splitting

Advanced fragmentation uses timing delays and "out-of-order" delivery to make reassembly even more difficult for automated inspection engines. This is a core component of our "Stealth Plus" architecture.

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