| 摘要 |
The present invention discloses methods and systems for forwarding Internet Protocol (IP) data packets at a first network gateway. The first network gateway comprises a plurality of wide area network (WAN) network interfaces and at least one local area network (LAN) network interface. A first WAN network interface of the plurality of WAN network interfaces is not assigned with an IP address. When first IP data packets are received through the first WAN network interface, the first network gateway inspects the first IP data packets. The first IP data packets are forwarded through one of the at least one LAN network interfaces when it is determined not to intercept the first IP data packets. When the first network gateway receives second IP data packets through one of the at least one LAN network interface, the first network gateway inspects the second IP packets. The first network gateway then forwards the second IP data packets through one of the plurality of WAN network interfaces when it is determined not to intercept the second IP data packets. |
