Patent attributes
A device may include a first interface and a second interface. The device may also include memory containing a set of rules and representations of pre-defined violations thereof. The device may also include digital logic programmed to: (i) receive, by way of the first interface, an Ethernet frame containing Ethernet header fields and an Ethernet payload, wherein the Ethernet payload contains a payload; (ii) extract data from the Ethernet header fields, wherein the data defines a transaction that is functionally equivalent to a further transaction that is defined by the payload; (iii) apply the set of rules to the transaction, wherein doing so involves comparing fields in the data to values and concluding that the transaction does not contain any pre-defined violations; and (iv) modify the Ethernet frame to contain content based on the payload, and transmit the Ethernet frame out the second interface.
