Methods, systems, and devices for interfacing to networks

摘要

Systems, methods, and devices for network communication are described. According to one embodiment, a system for connecting to communication networks includes a host configured to support at least a first bidirectional network interface and a second bidirectional network interface. The system also includes a first network interface connected to the host, the first network interface's input configured to receive incoming data from a first network connection and its output configured to transmit outgoing data to a second network connection. The system further includes a second network interface connected to the host, the second network interface's input configured to receive incoming data from the second network connection and its output configured to transmit outgoing data to the first network connection.

主权项

1. A system for connecting to communication networks comprising:
a first network interface integrated circuit comprising an input and an output, both traditionally employed to connect to a first external bidirectional network; a second network interface integrated circuit comprising an input and an output, both traditionally employed to connect to a second external bidirectional network; the input of the first network interface integrated circuit configured to receive incoming data from the first external bidirectional network; the output of the first network interface integrated circuit configured to transmit outgoing data to the second external bidirectional network; the input of the second network interface integrated circuit configured to receive incoming data from the second external bidirectional network; the output of the second network interface integrated circuit configured to transmit outgoing data to the first external bidirectional network; the first network interface integrated circuit further comprises a first buffer, the first network interface integrated circuit being configured to write the incoming data received from the first network into a location in the first buffer, the first network interface integrated circuit being configured to read the outgoing data to be transmitted to the second network from the same location in the first buffer; the second network interface integrated circuit further comprises a second buffer, the second network interface intergrated circuit being configured to write the incoming data received from the second network into a location in the second buffer, the second network interface integrated circuit being configured to read the outgoing data to be transmitted to the first network from the same location in the second buffer; the first buffer is configured for selective analysis, without modification, of the received data in the first buffer before the first network interface integrated circuit transmits the data to the second network; and the second buffer is configured for selective analysis, without modification, of the received data in the second buffer before the second network interface integrated circuit transmits the data to the first network.