A runtime adaptable search processor is disclosed. The search processor provides high speed content search capability to meet the performance need of network line rates growing to 1 Gbps, 10 Gbps and higher. he search processor provides a unique combination of NFA and DFA based search engines that can process incoming data in parallel to perform the search against the specific rules programmed in the search engines. The processor architecture also provides capabilities to transport and process 
Internet Protocol (IP) packets from Layer 2 through transport protocol layer and may also provide packet inspection through Layer 7. Further, a runtime adaptable processor is coupled to the 
protocol processing hardware and may be dynamically adapted to perform hardware tasks as per the needs of the network traffic being sent or received and / or the policies programmed or services or applications being supported. A set of engines may perform pass-through 
packet classification, policy 
processing and / or security 
processing enabling packet streaming through the architecture at nearly the full 
line rate. A high performance content search and rules 
processing security processor is disclosed which may be used for 
application layer and 
network layer security. scheduler schedules packets to packet processors for processing. An 
internal memory or local session 
database cache stores a session information 
database for a certain number of active sessions. The session information that is not in the 
internal memory is stored and retrieved to / from an additional memory. An application running on an initiator or target can in certain instantiations register a region of memory, which is made available to its peer(s) for access directly without substantial host intervention through RDMA data transfer. A 
security system is also disclosed that enables a new way of implementing security capabilities inside enterprise networks in a distributed manner using a 
protocol processing hardware with appropriate security features.