Client roaming from a first access node to a second access node within a wireless network
First Claim
1. A method of allowing a client to roam from a first wireless access node to a second wireless access node within a wireless network, the method comprising:
- providing the client by a first access node, a first communication path to and from a destination;
the client roaming from the first wireless access node to the second wireless access node;
detecting the client by the second access node, seeking access to the system, the second wireless access node wirelessly connected to a back bone network through a second gateway;
requesting client information by the second access node, including an IP address of the client from the second gateway, the request including a MAC address of the client;
performing a look up by the second gateway, of an anti-address resolution protocol (AARP) table, obtaining the IP address of the client based on the MAC address of the client;
receiving by the second wireless access node, the IP address of the client from the second gateway;
providing by the second wireless access node, the client a second communication path to and from the destination, the second communication path able to include wired and wireless communication links; and
aiding in routing of information through the second communication path between the client and the destination based upon detection of the client;
whereinif the second gateway does not have the client information, then the second gateway requests the client information from another gateway; and
whereinif none of the gateways have information regarding the client, then an IP address of the client is obtained by the first wireless access node by at least one of;
pinging the broadcast address, snooping IP datagrams originating from a MAC address of the client, the first wireless access node inspecting a DHCP acknowledgment packet.
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Accused Products
Abstract
A method that includes a client roaming from the first access node to a second access node is disclosed. The second wireless access node detects the client seeking access to the system. The second wireless access node is able to connect to the backbone network. Client information is obtained. The second wireless node provides the client a communication path to and from the destination. The communication path is able to include wired and wireless communication links. Routing of information through the communication path between the client and the destination is aided based upon detection of the client. The wireless connection between the second access node and the backbone network can include at least one wireless hop between the second access node and a fourth access node.
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Citations
23 Claims
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1. A method of allowing a client to roam from a first wireless access node to a second wireless access node within a wireless network, the method comprising:
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providing the client by a first access node, a first communication path to and from a destination; the client roaming from the first wireless access node to the second wireless access node; detecting the client by the second access node, seeking access to the system, the second wireless access node wirelessly connected to a back bone network through a second gateway; requesting client information by the second access node, including an IP address of the client from the second gateway, the request including a MAC address of the client; performing a look up by the second gateway, of an anti-address resolution protocol (AARP) table, obtaining the IP address of the client based on the MAC address of the client; receiving by the second wireless access node, the IP address of the client from the second gateway; providing by the second wireless access node, the client a second communication path to and from the destination, the second communication path able to include wired and wireless communication links; and aiding in routing of information through the second communication path between the client and the destination based upon detection of the client;
whereinif the second gateway does not have the client information, then the second gateway requests the client information from another gateway; and
whereinif none of the gateways have information regarding the client, then an IP address of the client is obtained by the first wireless access node by at least one of;
pinging the broadcast address, snooping IP datagrams originating from a MAC address of the client, the first wireless access node inspecting a DHCP acknowledgment packet. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification