Posta aí a saída dos comandos abaixo.
uname -r
sudo lshw -C network
ifconfig
vitor@UbuntuLaptop:~$ uname -r
2.6.31-14-generic
vitor@UbuntuLaptop:~$ sudo lshw -C network
[sudo] password for vitor:
*-network
description: Wireless interface
product: BCM4312 802.11b/g
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:0c:00.0
logical name: eth1
version: 01
serial: 0c:60:76:2f:25:3c
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=wl0 driverversion=5.10.91.9 latency=0 multicast=yes wireless=IEEE 802.11bg
resources: irq:17 memory:f69fc000-f69fffff
*-network
description: Ethernet interface
product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@0000:09:00.0
logical name: eth0
version: 02
serial: 00:25:64:65:0b:bf
size: 10MB/s
capacity: 100MB/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix vpd bus_master cap_list rom ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half latency=0 link=no multicast=yes port=MII speed=10MB/s
resources: irq:29 ioport:de00(size=256) memory:f0010000-f0010fff(prefetchable) memory:f0000000-f000ffff(prefetchable) memory:f0020000-f003ffff(prefetchable)
vitor@UbuntuLaptop:~$ ifconfig
eth0 Link encap:Ethernet Endereço de HW 00:25:64:65:0b:bf
UP BROADCAST MULTICAST MTU:1500 Métrica:1
pacotes RX:0 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:0 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
IRQ:29 Endereço de E/S:0x8000
eth1 Link encap:Ethernet Endereço de HW 0c:60:76:2f:25:3c
endereço inet6: fe80::e60:76ff:fe2f:253c/64 Escopo:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Métrica:1
pacotes RX:0 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:0 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
IRQ:17 Endereço de E/S:0xc000
lo Link encap:Loopback Local
inet end.: 127.0.0.1 Masc:255.0.0.0
endereço inet6: ::1/128 Escopo:Máquina
UP LOOPBACK RUNNING MTU:16436 Métrica:1
pacotes RX:4 erros:0 descartados:0 excesso:0 quadro:0
Pacotes TX:4 erros:0 descartados:0 excesso:0 portadora:0
colisões:0 txqueuelen:0
RX bytes:240 (240.0 B) TX bytes:240 (240.0 B)