Method for transparently exchanging data packets
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Accused Products
Abstract
The invention relates to a method for transparently exchanging data packets with a packet-oriented network, via which a number of network elements and a network node device are connected based on a common access method. The network elements are allocated unique local addresses only within the network. The network node device connects the packet-oriented network to an external device based on a point-to-point protocol and performs an address conversion of the address of a network element, said address being allocated within the packet-oriented network, into an address valid for the external device. A verification of message header entries of the data packets exchanged between the external device and the network element permits the establishment of a temporary transparent connection of the network element to the external device in the event an entry is detected the characterizes an expanded point-to-point protocol, e.g. PPPoE, whereby the address newly allocated by the external device is transmitted to the external device without address conversion.
22 Citations
31 Claims
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1-13. -13. (canceled)
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14. A method for transparently exchanging data packets with a packet-oriented network via which a number of network elements and a network node device are connected, the network elements having
unique addresses only within the packet-oriented network, the packet-oriented network connected to an external device by the network node device, and the unique address of a network element converted into an address valid for the external device by the network node device, the method comprising: -
setting up a connection between a first network element and the external device; and
verifying message header entries of data packets exchanged between the external device and the first network element, wherein if a message header entry characterizing an expanded packet-oriented protocol is detected, a temporarily transparent connection is established between the first network element and the external device, and wherein the unique address of the first network element is transferred to the external device without being converted by the network node device. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A network node element for supporting a transparent exchange of data packets, comprising:
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at least one network interface to a packet-oriented network connecting a plurality of network elements, wherein the network elements are allocated unique addresses only within the network;
at least one network interface to an external device;
at least one routing unit for converting of the unique address of a network element into an address valid for the external device;
at least one monitoring unit for monitoring message header entries of the data packets exchanged between the external device and a first network element, wherein the monitoring unit is configured to detect a message header entry characterizing an expanded packet-oriented protocol and to establish a temporarily transparent connection between the first network element and the external device, and whereby no address conversion of an address allocated to the first network element by the external device for the duration of the transparent connection is performed. - View Dependent Claims (29, 30, 31)
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Specification