MEDIA ACCESS CONTROL ADDRESS TRANSLATION IN VIRTUALIZED ENVIRONMENTS
First Claim
1. A method for transmitting network packets through a network security device, the method comprising:
- receiving a request to send a network packet from a first computing device to a second computing device over a network comprising the network security device, wherein the network packet comprises a first network interface identifier for identifying the first computing device on the network and a second network interface identifier for identifying the second computing device on the network;
identifying third and fourth network interface identifiers that, when the network packet is transmitted using the third and fourth network interface identifiers, cause the network packet to be transmitted through the network security device;
transmitting the network packet over the network through the network security device using the third and fourth network interface identifiers; and
transmitting the network packet to the second computing device using the first and second network interface identifiers.
1 Assignment
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Accused Products
Abstract
Some embodiments provide a method that transmits network packets through a network security device. The method receives receiving a request to send a network packet from a first computing device to a second computing device over a network that includes the network security device. The network packet includes a first network interface identifier for identifying the first computing device on the network and a second network interface identifier for identifying the second computing device on the network. The method identifies third and fourth network interface identifiers that cause the network packet to be transmitted through the network security device when the network packet is transmitted using the third and fourth network interface identifiers. The method transmits the network packet over the network through the network security device using the third and fourth network interface identifiers. The method transmits the network packet to the second computing device using the first and second network interface identifiers.
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Citations
35 Claims
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1. A method for transmitting network packets through a network security device, the method comprising:
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receiving a request to send a network packet from a first computing device to a second computing device over a network comprising the network security device, wherein the network packet comprises a first network interface identifier for identifying the first computing device on the network and a second network interface identifier for identifying the second computing device on the network; identifying third and fourth network interface identifiers that, when the network packet is transmitted using the third and fourth network interface identifiers, cause the network packet to be transmitted through the network security device; transmitting the network packet over the network through the network security device using the third and fourth network interface identifiers; and transmitting the network packet to the second computing device using the first and second network interface identifiers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method for transmitting network packets through a network security device, the method comprising:
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receiving a first request to send a network packet from a first computing device to a second computing device over a network comprising the network security device, the network packet comprising a first network interface identifier for identifying the first computing device on the network and a second interface identifier for identifying the second computing device on the network; sending a second request for third and fourth network interface identifiers, wherein the network packet is transmitted through the network security device when the network packet is transmitted using the third and fourth network interface identifiers; modifying the network packet to use the third and fourth network interface identifiers when the network packet is transmitted through the network; and transmitting the modified network packet through the network through the network security device to the second computing device. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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30. A method for communicating network packets through a network security device that is part of a network comprising first and second firewalls, first and second switching devices, and a plurality of computing devices, each switching device coupled to the first and second firewalls and the network security device, the method comprising:
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at the first firewall, receiving a request to send a network packet from a first computing device coupled to the first firewall to a second computing device coupled to the second firewall, wherein the network packet comprises a first network interface identifier for identifying the first computer on the network and a second network interface identifier for identifying the second computer on the network; at the first firewall, performing a first modification to the network packet by replacing the first network interface identifier with a third network interface identifier and replacing the second network interface identifier with a fourth network interface identifier, wherein the third and fourth network interface identifiers are associated with the first firewall; from the first firewall, transmitting the first modified network packet to the first switching device, wherein the first switching device forwards the first modified network packet through the network security device to the second switching device, wherein the second switching device forwards the first modified network packet to the first firewall; at the first firewall, performing a second modification to the first modified network packet by replacing the third network interface identifier with the first network interface identifier and replacing the fourth network interface identifier with the second network interface identifier; and from the first firewall, transmitting the second modified network packet to the second computing device through the first switching device. - View Dependent Claims (31, 32, 33, 34, 35)
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Specification