Conexão com a Internet freqüentemente caindo na Ethernet

Question

Minha conexão com a Internet está freqüentemente caindo em Wired Lan (Ethernet), mas o wireless funciona bem sem nenhum problema. Não é um problema de velocidade da Internet, pois a Internet funciona bem no Windows.

saída do ifconfig

$ ifconfig eth0
eth0      Link encap:Ethernet  HWaddr 44:1e:a1:db:95:d9  
          inet addr:192.168.28.127  Bcast:192.168.31.255  Mask:255.255.252.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:31254 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1922 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:2729623 (2.6 MiB)  TX bytes:228959 (223.5 KiB)
          Interrupt:41 Base address:0x4000  

saída do ethtool

$ ethtool eth0
Settings for eth0:
    Supported ports: [ TP ]
    Supported link modes:   10baseT/Half 10baseT/Full 
                            100baseT/Half 100baseT/Full 
    Supported pause frame use: No
    Supports auto-negotiation: Yes
    Advertised link modes:  10baseT/Half 10baseT/Full 
                            100baseT/Half 100baseT/Full 
    Advertised pause frame use: No
    Advertised auto-negotiation: Yes
    Speed: 100Mb/s
    Duplex: Full
    Port: Twisted Pair
    PHYAD: 0
    Transceiver: internal
    Auto-negotiation: on
    MDI-X: Unknown
    Supports Wake-on: pumbg
    Wake-on: g
    Current message level: 0x00000033 (51)
                   drv probe ifdown ifup
    Link detected: yes

.

saída do lspci

$ lspci -kd 10ec:8136
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101E/RTL8102E PCI Express Fast Ethernet controller (rev 05)
    Subsystem: Hewlett-Packard Company Device 1670
    Kernel driver in use: r8101

dmesg Output      link

Eu tentei:

• Desativando o IPv6 mencionado aqui: link e link
• Reinstalando o driver.
• Alterando o cabo da LAN.

Mas o problema persiste. Alguém pode me ajudar com isso?

EDITAR Saída completa do ifconfig

$ ifconfig
eth0      Link encap:Ethernet  HWaddr 44:1e:a1:db:95:d9  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:153899 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10625 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:16405299 (15.6 MiB)  TX bytes:3355393 (3.1 MiB)
          Interrupt:41 Base address:0x4000 

eth1      Link encap:Ethernet  HWaddr 94:39:e5:51:81:49  
          inet addr:192.168.235.102  Bcast:192.168.235.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:4213 errors:0 dropped:0 overruns:0 frame:59354
          TX packets:4797 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:2795494 (2.6 MiB)  TX bytes:712585 (695.8 KiB)
          Interrupt:16 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:28 errors:0 dropped:0 overruns:0 frame:0
          TX packets:28 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:1400 (1.3 KiB)  TX bytes:1400 (1.3 KiB)

vmnet1    Link encap:Ethernet  HWaddr 00:50:56:c0:00:01  
          inet addr:172.16.222.1  Bcast:172.16.222.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

vmnet8    Link encap:Ethernet  HWaddr 00:50:56:c0:00:08  
          inet addr:172.16.31.1  Bcast:172.16.31.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:10 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

EDIT2

Configração de Redes VmWare

Nota: Estas eram as configurações padrão, não as alterei. Acabei de adicionar a VM.

vmnet0

vmnet1

vmnet8

    

Answer 1

Minhas suspeitas são levantadas pelas seguintes linhas na sua saída dmesg :

[  112.906696] bridge-eth0: disabling the bridge on dev down
[  112.906765] bridge-eth0: down
[  112.906779] bridge-eth0: detached
[  113.106574] userif-3: sent link down event.
[  113.106584] userif-3: sent link up event.
[  114.910231] r8101: eth0: link up
[  114.910591] /dev/vmnet: open called by PID 3068 (vmnet-bridge)
[  114.910628] /dev/vmnet: hub 0 does not exist, allocating memory.
[  114.910697] /dev/vmnet: port on hub 0 successfully opened
[  114.910724] bridge-eth0: up
[  114.910759] bridge-eth0: attached

Eu tentaria o seguinte: é só uma tentativa, se ela não produzir os resultados desejados, basta desligar e ligar o computador novamente e você terá a mesma situação de antes do teste.

1. Bloqueie a VM, mate o VMWare completamente.
2. Bloquear gerenciador de rede (sudo service network-manager stop);
3. Conecte-se manualmente (sudo dhclient eth0).
4. Tente navegar por algum tempo e veja se o mesmo problema ressurge.

Deixe-nos saber.