Edge Computing Division Users Forum

Posted: **Thu Jan 09, 2014 5:41 pm**

Hello Everyone,
Two years ago, I bought a Fit Pc2i . I use this wonderful device as router and wireless point for my home network .So far, I have been very satisfied but few days ago I started to get troubles with my ethernet network. I lost the wired connection randomly.

I try to describe the problem:

- I have installed Ubuntu on this device:

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Ubuntu 12.04.1 LTS \n \l

The hardware: Description of the Ethernet controller
lspci -v | grep Eth

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02:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02)
03:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 02)

The interfaces:
Eth1 (renamed eth_adsl) is connected to the ADSL box.
Eth2 (renamed eth_local) is connected to the local network.
Wlan1 (renamed wlan_local) for the wireless connection on my local network.

I created a bridge to manage both interfaces eth_local and wlan_local in the same way
/etc/network/interfaces:

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 # This file describes the network interfaces available on your system
    # and how to activate them. For more information, see interfaces(5).
    # The loopback network interface
    auto lo
    iface lo inet loopback
    # The primary network interface
    # Internet
    auto eth_adsl
    iface eth_adsl inet dhcp
    # Wifi
    iface wlan_local inet static
            wireless-mode master
    # Bridge
    auto bridge_local
    iface bridge_local inet static
            address 192.168.0.1
            netmask 255.255.255.0
            broadcast 192.168.0.255
            bridge_ports eth_local wlan_local
            post-up /etc/init.d/isc-dhcp-server start
            pre-down /etc/init.d/isc-dhcp-server stop

This configuration worked for two years but now, the wired connection fails.
part of the Syslog file

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 Jan  5 16:59:28 PYXrouteur dhcpd: DHCPREQUEST for 192.168.0.10 from e0:cb:4e:47:3b:9d via bridge_local
    Jan  5 16:59:28 PYXrouteur dhcpd: DHCPACK on 192.168.0.10 to e0:cb:4e:47:3b:9d via bridge_local
    Jan  5 16:59:30 PYXrouteur dhcpd: DHCPREQUEST for 192.168.0.12 from 00:17:f2:c8:7a:1a via bridge_local
    Jan  5 16:59:30 PYXrouteur dhcpd: DHCPACK on 192.168.0.12 to 00:17:f2:c8:7a:1a via bridge_local
    Jan  5 16:59:32 PYXrouteur kernel: [66983.872011] r8169 0000:03:00.0: eth_local: link down
    Jan  5 16:59:32 PYXrouteur kernel: [66983.872995] bridge_local: port 1(eth_local) entering forwarding state
    Jan  5 16:59:34 PYXrouteur kernel: [66986.202962] r8169 0000:03:00.0: eth_local: link up
    Jan  5 16:59:34 PYXrouteur kernel: [66986.204680] bridge_local: port 1(eth_local) entering forwarding state
    Jan  5 16:59:34 PYXrouteur kernel: [66986.204740] bridge_local: port 1(eth_local) entering forwarding state
    Jan  5 16:59:36 PYXrouteur dhcpd: DHCPREQUEST for 192.168.0.12 from 00:17:f2:c8:7a:1a via bridge_local
    Jan  5 16:59:36 PYXrouteur dhcpd: DHCPACK on 192.168.0.12 to 00:17:f2:c8:7a:1a via bridge_local
    Jan  5 16:59:37 PYXrouteur dhcpd: DHCPREQUEST for 192.168.0.10 from e0:cb:4e:47:3b:9d via bridge_local
    Jan  5 16:59:37 PYXrouteur dhcpd: DHCPACK on 192.168.0.10 to e0:cb:4e:47:3b:9d via bridge_local
    Jan  5 16:59:38 PYXrouteur dhcpd: DHCPREQUEST for 192.168.0.12 from 00:17:f2:c8:7a:1a via bridge_local
    Jan  5 16:59:38 PYXrouteur dhcpd: DHCPACK on 192.168.0.12 to 00:17:f2:c8:7a:1a via bridge_local
    Jan  5 16:59:41 PYXrouteur dhcpd: DHCPINFORM from 192.168.0.10 via bridge_local
    Jan  5 16:59:41 PYXrouteur dhcpd: DHCPACK to 192.168.0.10 (e0:cb:4e:47:3b:9d) via bridge_local
    Jan  5 16:59:49 PYXrouteur kernel: [67001.248053] bridge_local: port 1(eth_local) entering forwarding state
    Jan  5 17:00:04 PYXrouteur hostapd: wlan_local: STA 00:1b:63:14:9a:db IEEE 802.11: disassociated
    Jan  5 17:00:05 PYXrouteur hostapd: wlan_local: STA 00:1b:63:14:9a:db IEEE 802.11: deauthenticated due to inactivity
    Jan  5 17:00:05 PYXrouteur kernel: [67017.533112] r8169 0000:03:00.0: eth_local: link down
    Jan  5 17:00:05 PYXrouteur kernel: [67017.534143] bridge_local: port 1(eth_local) entering forwarding state
    Jan  5 17:00:08 PYXrouteur kernel: [67019.937867] r8169 0000:03:00.0: eth_local: link up
    Jan  5 17:00:08 PYXrouteur kernel: [67019.939523] bridge_local: port 1(eth_local) entering forwarding state
    Jan  5 17:00:08 PYXrouteur kernel: [67019.939566] bridge_local: port 1(eth_local) entering forwarding state
    Jan  5 17:00:08 PYXrouteur dhcpd: DHCPREQUEST for 192.168.0.10 from e0:cb:4e:47:3b:9d via bridge_local
    Jan  5 17:00:08 PYXrouteur dhcpd: DHCPACK on 192.168.0.10 to e0:cb:4e:47:3b:9d via bridge_local
    Jan  5 17:00:14 PYXrouteur dhcpd: DHCPINFORM from 192.168.0.10 via bridge_local
    Jan  5 17:00:14 PYXrouteur dhcpd: DHCPACK to 192.168.0.10 (e0:cb:4e:47:3b:9d) via bridge_local
    Jan  5 17:00:23 PYXrouteur kernel: [67034.976083] bridge_local: port 1(eth_local) entering forwarding state

As you can see in this log the interface eth_local alternate link down/ link up every 30 secondes.
Behind the Fit PC2i, I have only the orange led activated.
------------------

Last update : Now I don't have any led activated for eth_local (Eth2). It seems dead. No more wired connection on my home network.
The Wifi works perfectly.

Do you have any explanation? May I make a test?
It's like if one of the ethernet controller was suddenly dead with no explanation.
Thank you for your help

Posted: **Fri Jan 10, 2014 12:44 am**

OK Wrong Alert. Actually, it was a hardware problem with the Switch!

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