Newsgroups: comp.os.linux.setup
Date: Tue, 26 Nov 2002 23:43:17 -0500

> I was happy, when I succesfully installed the new Elitegroup k7s5a
> mainboard on my computer and got no error messages about the NIC.
> The other NIC (on board) was also successfully installed and my laptop can
> communicate with its linux box.
> But when I try to get connection to my ISP
> (telnet login.isp.address), I got error message (host unreachable).
>
> I don't know where to start finding the wrong configuration.
> Here are some outputs:
> ------------------------------------------------------
> # dmesg |grep "eth0"
> divert: allocating divert_blk for eth0
> eth0: Realtek RTL8201 PHY transceiver found at address 1.
> eth0: Using transceiver found at address 1 as default
> eth0: SiS 900 PCI Fast Ethernet at 0xd400, IRQ 10, 00:07:95:32:2e:41.
> eth0: Media Link On 100mbps full-duplex
> # dmesg |grep "eth1"
> divert: allocating divert_blk for eth1
> eth1: Digital DS21143 Tulip rev 65 at 0xd0908c00, 00:60:F5:A0:14:A1, IRQ 10.

I'm suspicious of this NIC. I've never seen a "divert" message before.

> # route -n
> 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 eth0
> 134.174.63.0    0.0.0.0         255.255.255.0   U     0      0        0 eth1
> 127.0.0.0       0.0.0.0         255.0.0.0       U     0      0        0 lo
> 0.0.0.0         134.174.63.1    0.0.0.0         UG    0      0        0 eth1

Your default route goes through eth1 to your gateway at 134.174.63.1 Can you ping 134.174.63.1?

> # ifconfig
> eth0      Link encap:Ethernet  HWaddr 00:07:95:32:2E:41            inet
> addr:192.168.0.1  Bcast:192.168.0.255  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:4 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:100           RX bytes:0 (0.0 b)  TX
> bytes:168 (168.0 b)
>           Interrupt:10 Base address:0xd400

eth0 looks OK, sort of. You've sent 4 packets, and it's not encountered any errors. However, you've not received _any_ packets, which is somewhat suspicious.

> eth1      Link encap:Ethernet  HWaddr 00:60:F5:A0:14:A1
>           inet addr:134.174.63.134  Bcast:134.174.63.255  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:0 errors:114 dropped:0 overruns:0 carrier:114
>           collisions:0 txqueuelen:100           RX bytes:0 (0.0 b)  TX
> bytes:0 (0.0 b)
>           Interrupt:10 Base address:0x8c00

eth1 looks to have problems. you've not been able to send or receive _any_ packets. all 114 packets that you've tried to send had carrier errors. It looks like your eth1 isn't properly configured for your lan speed, or some other problem is causing it to lose it's 'carrier'.

> lo        Link encap:Local Loopback
>           inet addr:127.0.0.1  Mask:255.0.0.0
>           UP LOOPBACK RUNNING  MTU:16436  Metric:1
>           RX packets:69 errors:0 dropped:0 overruns:0 frame:0
>           TX packets:69 errors:0 dropped:0 overruns:0 carrier:0
>           collisions:0 txqueuelen:0
>           RX bytes:6852 (6.6 Kb)  TX bytes:6852 (6.6 Kb)

As expected, lo is OK.

> # depmod -a (no output)
> # lsmod
> Module                  Size  Used by    Not tainted
> videodev                8288   2  (autoclean) [bttv]
> i2c-algo-bit            8840   1  (autoclean) [bttv]
> i2c-core               19268   0  (autoclean) [tuner bttv i2c-algo-bit]
> sr_mod                 18168   0  (autoclean)
> i810_audio             25224   1  (autoclean)
> ac97_codec             13416   0  (autoclean) [i810_audio]
> soundcore               6532   2  (autoclean) [i810_audio]
> autofs                 13348   0  (autoclean) (unused)
> tulip                  43552   1

OK, so a driver for eth1 is loaded. It might be the wrong driver, though. Have you tried the de4x5 driver? From the driver source, it looks like de4x5.o might be better suited to your eth1 NIC than tulip.o

> sis900                 16908   1

The driver for eth0 is loaded. The sis900 driver seems to be the correct one for the RTL8201 NIC.

> iptable_filter          2412   0  (autoclean) (unused)
> ip_tables              14936   1  [iptable_filter]
> ide-scsi               10512   0 scsi_mod              107240   2  [sr_mod
> ide-scsi]
> ide-cd                 33608   1 cdrom                  33696   0  [sr_mod
> ide-cd]
> ohci1394               20108   0  (unused)
> ieee1394               46892   0  [ohci1394]
> nls_iso8859-1           3516   4  (autoclean)
> nls_cp437               5148   3  (autoclean)
> mousedev                5524   1 keybdev                 2976   0  (unused)
> hid                    22244   0  (unused)
> input                   5920   0  [mousedev keybdev hid]
> usb-ohci               21320   0  (unused)
> usbcore                77024   1  [hid usb-ohci]
> # cat /etc/resolv.conf
> search hm.bochum.de
> nameserver 134.174.63.2
> nameserver 134.174.32.40
> nameserver 134.174.222.4
> # cat /var/log/messages |grep error (no output)
> ------------------------------------------------------
> Again: I have to connect through 'telnet login.isp.address' to get
> internet working.

How do you mean "get internet working"? How does telnetting to your isp "get internet working"?

Try a few things:

Lew Pitcher

> >> There is no default route here. Packets destined for network addresses
> >> other than the two specified will have no place to go.
>
> Correction: the default route has been defined, and it sends packets out
> via eth1
> >>> 0.0.0.0         134.174.63.1    0.0.0.0         UG    0   0   0 eth1
>     -------         ------------                    --              ----
>      \-default route  \- uses gateway IP             \-Up/Gateway    \-eth1