Email: pacolinux arroba inicia punto es
Web: http://aldarias.es/pacodebian
Con Linux Debian. En Valencia (España)
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Las redes inhalambricas con bluetooh, es otro tipo más de redes inhalámbricas.
Los dispositivos bluetooh, son como tarjetas de red, con su MAC y su IP, y se identifican por bnep0, en lugar eth0 como en las redes ethernet.
La velocidad máxima que alcanza es simetrica de 50KBytes/s.
La distancia es de 10 metros en linea recta, sin paredes.
Veamos un caso concreto, con linux debian, y dos usb bluetooth conectados a un pc que conecta a internet y un portatil que se conecta al pc de sobremesa.
Mi kernel:
uname -a
Linux aldarias.dyndns.org 2.6.13.2 7 SMP Sat Sep 24 17:49:28 CEST 2005 i686 GNU/Linux
Networking --->
<M> Bluetooth subsystem support --->
Device Drivers --->
USB support ---
<M> EHCI HCD (USB 2.0) support
[*] Full speed ISO transactions (EXPERIMENTAL)
[*] Root Hub Transaction Translators (EXPERIMENTAL)
<M> ISP116X HCD support
<M> OHCI HCD support
<M> UHCI HCD (most Intel and VIA) support
<M> SL811HS HCD support
Está conectedo a internet y hace NAT.
Datos del Bluetooth usb:
MAC: 00:80:5A:46:26:8C
IP ESTATICA: 192.168.0.3
lsusb: El dispositivo
Bus 002 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
ifconfig: Los datos tcp/ip ya cogidos
ifconfig
bnep0 Link encap:Ethernet HWaddr 00:14:35:00:00:FA
inet addr:192.168.0.3 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::214:35ff:fe00:fa/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:972 errors:0 dropped:0 overruns:0 frame:0
TX packets:992 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:85090 (83.0 KiB) TX bytes:854078 (834.0 KiB)
eth0 Link encap:Ethernet HWaddr 00:50:FC:F7:18:63
inet addr:81.202.234.16 Bcast:255.255.255.255 Mask:255.255.248.0
inet6 addr: fe80::250:fcff:fef7:1863/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:2731259 errors:0 dropped:0 overruns:0 frame:0
TX packets:2986512 errors:0 dropped:0 overruns:0 carrier:0
collisions:6434 txqueuelen:1000
RX bytes:1665262915 (1.5 GiB) TX bytes:509122818 (485.5 MiB)
Interrupt:16 Base address:0xd000
eth1 Link encap:Ethernet HWaddr 00:50:FC:F7:89:22
inet addr:192.168.0.1 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::250:fcff:fef7:8922/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:6831290 errors:5262 dropped:22942 overruns:3998 frame:0
TX packets:2881124 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1107361179 (1.0 GiB) TX bytes:524812754 (500.5 MiB)
Interrupt:17 Base address:0xdc00
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:1010107 errors:0 dropped:0 overruns:0 frame:0
TX packets:1010107 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:100262695 (95.6 MiB) TX bytes:100262695 (95.6 MiB)
cat /etc/network/interfaces: Los datos de configuración
auto eth0 eth1 lo iface lo inet loopback iface eth0 inet dhcp iface eth1 inet static address 192.168.0.1 netmask 255.255.255.0 broadcast 192.168.0.255 network 192.168.0.0 iface bnep0 inet static address 192.168.0.3 netmask 255.255.255.0 broadcast 192.168.0.255 network 192.168.0.0 auto bnep0
route -n: El enrutado
route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.0.8 0.0.0.0 255.255.255.255 UH 0 0 0 bnep0 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 bnep0 81.202.232.0 0.0.0.0 255.255.248.0 U 0 0 0 eth0 0.0.0.0 81.202.232.1 0.0.0.0 UG 0 0 0 eth0
cat /etc/default/bluetooth: La red bluetooth
DUND_ENABLED=0 DUND_OPTIONS="--listen --persist" PAND_ENABLED=1 PAND_OPTIONS="-s -M --role=NAP"
Datos del Bluetooth usb:
lsusb: El dispositivo
Bus 001 Device 002: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)
ifconfig: Los datos tcp/ip ya cogidos
bnep0 Link encap:Ethernet HWaddr 00:80:5A:46:26:8C
inet addr:192.168.0.8 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::280:5aff:fe46:268c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:325 errors:0 dropped:0 overruns:0 frame:0
TX packets:260 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:449542 (439.0 KiB) TX bytes:16657 (16.2 KiB)
cat /etc/network/interfaces: Los datos de configuración
# Por Paco Aldarias. 04.08.2006
iface lo inet loopback
auto lo
iface bnep0 inet static
address 192.168.0.8 # ip del portatil
netmask 255.255.255.0
network 192.168.0.0
broadcast 192.168.0.255
gateway 192.168.0.3 # bluetooh del pc
auto bnep0
route -n: El enrutado
Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 bnep0 0.0.0.0 192.168.0.3 0.0.0.0 UG 0 0 0 bnep0
cat /etc/default/bluetooth: La red bluetooth
PAND_ENABLED=1 PAND_OPTIONS="--role PANU --search --persist \ --encrypt --connect 00:14:35:00:00:FA" # MAC del blue pc de sobre mesa.: 00:14:35:00:00:FA
La velocidad de conexión es simétrica de 50Kbytes, es decir, la velocidad es igual de envio que de recepción de datos.
Bluetooth and Linux
http://www.holtmann.org/linux/bluetooth/
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The translation was initiated by paco on 2006-08-19