Providing routing paths for wireless devices

1. A method of wireless connectivity comprising:

receiving a broadcast beacon at a client;

the client deriving information from the beacon, the information allowing the client to identify all other clients in a multi-hop path from the client to a server; further comprising the client;

storing every beacon received;

designating one path identified by one beacon as the optimal path;

setting a default gateway as identified in the optimal path; and

rebroadcasting only the beacon representing the optimal path.

2. The method of wireless connectivity of claim 1 , wherein the information identifying the other clients comprises addresses of the other clients.

3. The method of wireless connectivity of claim 1 , wherein beacons are originated and broadcast by the server, and are modified and broadcast by clients.

4. The method of wireless connectivity of claim 1 , wherein the client receives a plurality of broadcast beacons, modifies at least one of the received beacons, and transmits the at least one modified beacon.

5. The method of wireless connectivity of claim 3 , wherein modified beacons comprise addresses of clients in the path, and an address of the server.

6. The method of claim 3 , wherein the beacon broadcast by the server includes a hop-count set to an initial value, the method further comprising:

each client that receives the beacon broadcasting a modified beacon with the hop-count incremented by one;

such that each client receiving any beacon knows a path to reach the server and the number of hops in this path.

7. The method of claim 1 further comprising:

each client that receives the broadcast beacon rebroadcasting the beacon with an identifier of the client added to the beacon;

such that any client receiving any beacon has a complete path to the server.

8. The method of claim 7 , wherein the identifier of the client is a client address.

9. The method of claim 5 , further comprising:

determining if there is a previous default gateway identified; and

deleting the previous default gateway from memory.

10. The method of claim 1 , further comprising, for each client:

collecting a plurality of beacons; and

selecting a single beacon to broadcast.

11. The method of claim 10 , wherein selecting a beacon comprises:

identifying a number of hops between the server and the client for each beacon; and

selecting the beacon with the lowest number of hops.

12. The method of claim 10 , wherein selecting a beacon comprises:

identifying a traffic monitoring code (TMC) for each of the beacons; and

selecting the beacon with the lowest TMC.

13. The method of claim 10 , wherein selecting a beacon comprises:

identifying a beacon with a highest quality; and

selecting the beacon with the highest quality.

14. The method of claim 13 , wherein the highest quality is a best signal-to-noise ratio.

15. The method of claim 13 , wherein the highest quality is based on most back end bandwidth capacity at the server.

16. The method of claim 13 , wherein the highest quality is based on a lowest level of traffic being handled by the server.

17. The method of claim 13 , wherein the highest quality is based on a reliability of the beacon.

18. The method of claim 17 , wherein the reliability is determined by a number of times the beacon is received compared to a number of times the beacon was broadcast.

19. The method of claim 1 , further comprising:

sending a reverse beacon to the server; and

constructing a client tree in the server, wherein the server has a path to all clients.

20. A method of wireless connectivity comprising:

receiving a broadcast beacon at a client;

the client deriving information from the beacon, the information allowing the client to identify all other clients in a multi-hop path from the client to a server; wherein the broadcast beacon includes a sequence number representing a current routing cycle.

21. The method of claim 20 , further comprising upon a client receiving a beacon, determining if a beacon was previously received for this routing cycle; and

if no beacon was previously received for the routing cycle, storing a routing path to the server from the beacon.

22. The method of claim 20 , further comprising, if the beacon was previously received for the routing cycle:

determining if this beacon has a higher sequence number than a prior beacon for this routing cycle, and if so,

storing the current beacon in memory.

23. The method of claim 20 , further comprising,

upon a client receiving a beacon, determining if a currently received beacon represents an optimal path for this routing cycle; and

if the current beacon represents the optimal path, identifying a default gateway in the current beacon, and storing the default gateway.

24. A method of generating a routing path for a system including a server and a plurality of clients, the method comprising each client:

receiving a beacon from one of the server or another client, wherein the beacon includes a sequence number representing a current routing cycle;

the client deriving information from the beacon, the information allowing the client to identify all other clients in a multi-hop path from the client to a server;

rebroadcasting one beacon received from an upstream node; and

broadcasting a reverse beacon upstream, the reverse beacon being addressed to the known upstream node, the reverse beacon used by the server and each client to set up a routing table.

25. The method of claim 24 , wherein a routing table in a particular client includes a default gateway and a path to each client downstream from the particular client.

26. The method of claim 24 , further comprising the server broadcasting a dummy reverse beacon to initiate the reverse beacon cycle.

27. The method of claim 24 , further comprising each client aggregating the reverse beacons received from downstream clients, and sending a single reverse beacon including the aggregated information.

28. The method of claim 24 , wherein

receiving a reverse beacon broadcast by a client's default gateway triggers the client to start a timer to send the reverse beacon.

29. The method of claim 24 ,

further comprising, if a client receives multiple beacons:

evaluating a link quality of each of the beacons received; and

selecting a default gateway based on the beacon with the best link quality and rebroadcasting that beacon.

30. The method of claim 29 , wherein the link quality comprises reliability of the beacon.

31. The method of claim 29 , wherein the link quality includes information about the back end bandwidth capacity of the server.

32. The method of claim 29 , wherein the link quality includes information about the traffic being handled by the server.

33. The method of claim 24 , wherein a connection between the server and the client is a wireless connection.

34. The method of claim 24 , wherein a connection between the server and the client is chosen from among the following types of connections: a wireless connection, a wired connection, and a switched connection.

35. The method of claim 24 , further comprising the client:

receiving a plurality of beacons from a plurality of servers; and

selecting one of the plurality of beacons, and setting the server associated with the selected beacon as its preferred server;

thereby self-selecting to belong in a cluster associated with the preferred server.

36. The method of claim 35 , further comprising the client:

moving outside the cluster;

upon receiving a beacon from a new cluster, the client setting the server associated with the new beacon and the new cluster as its preferred server.

37. The method of claim 36 , further comprising:

expiring a routing table including a previous preferred server and previous default gateway.