Abstract: A network protection equipment (NPE) and a method of transmitting a packet are provided. According to an example of the method, when receiving an HTTP request packet from a client, the NPE may restrict a transmission manner of an HTTP response packet corresponding to the HTTP request packet as a chunked transmission manner. Where, the HTTP response packet is a packet returned to the NPE by a server in response to the HTTP request packet. The NPE may determine whether a redirection packet is to be established for the HTTP response packet based on the HTTP response packet and a preset detection condition. When determining that a redirection packet for the HTTP response packet is to be established, the NPE may establish a redirection packet for the HTTP response packet based on the HTTP response packet and send the redirection packet to the client in the chunked transmission manner.