Dual mode firewall
Methods and devices are provided for implementing a dual mode firewall. Some implementations provide a firewall in a network device that acts as a bridge for Layer 2 traffic and acts as a router for Layer 3 traffic. In some implementations, a determination of whether to act as a bridge or a router f...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | Methods and devices are provided for implementing a dual mode firewall. Some implementations provide a firewall in a network device that acts as a bridge for Layer 2 traffic and acts as a router for Layer 3 traffic. In some implementations, a determination of whether to act as a bridge or a router for a packet is based on the configuration of the interface handling the packet. In some implementations, the network device inspects a destination of each packet to determine whether to act as a bridge or a router for that packet. The firewall screens both the Layer 2 and the Layer 3 traffic according to policies implemented in the firewall. |
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