Can't get Linux to Connect to modem through Router

[BIGMAN131307]

I have RR cable internet that is connected my new Motorola SB5120 Cable Modem. That is connected to my Linksys Router, then goes to my PC running XP. That is working fine.

I've tried several Linux distros installed on my Acer Travelmate 2441 Laptop, with no luck.

FreeSpire (I'd preferably like to run this distro)
Ubuntu
DSL (My second choice)


My preferred setup connected by ethernet:

Cable internet
SB5120 Modem
Linksys Router BEFSX41
PC (XP) & Laptop (Linux)


The distros either see the laptop either or not. That is the problem.

I'm very new to setting up Linux for internet connection, so set-by-step instructions would be very helpful. I do not want to dual-boot my laptop.

I would also be open to any other distros that will work immediately after install. A few years back I tried a distro that worked flawless, but I can't remember it's name.

Please help me as soon as you can.

Thx,

[kakariko81280]

To make the modem work can I direct you to the instructions in this thread.

As for making your laptop work fully under Linux, we will need to know what is actually wrong. Laptops can be a bit tricky depending on the hardware but if you can tell us where you are having trouble we will help with whatever distribution you want to try.

Let us know how you get on,

Chris...

[spencerf]

does the internet work when connected directly to the modem as the topic of your post seems to indicate a problem with linux and your router which would be odd. More likely you just can't get on the internet.

please post the output of:

[as root]
lspci | grep -i ethernet

ifconfig -a

lsmod

[BIGMAN131307]

To make the modem work can I direct you to the
instructions in this thread.

As for making your laptop work fully under Linux, we will need to
know what is actually wrong. Laptops can be a bit tricky depending
on the hardware but if you can tell us where you are having trouble
we will help with whatever distribution you want to try.

Let us know how you get on,

Chris...

I try to go online, but I get the message "Server not found, blah, blah".

So far I tried rebooting my laptop, modem, and router. All with no luck.
I'm using FreeSpire. All the posts I've seen/read so far didn't quite help me.
They mostly got me cunfused.


If I can get step-by-step instructions on how to configure my cable modem & browser,
that will help alot.

My current setup is:

Cable Internet (Road Runner)
into
Cable Modem (Motorola SB5120)
into
Router (linksys BEFSX41
outto
Desktop PC(Windows XP) working great & Laptop PC (Freespire Linux) connection not working


************************************************** ***

does the internet work when connected directly to the modem as the topic of
your post seems to indicate a problem with linux and your router which would be odd. More
likely you just can't get on the internet.

No it doesn't. Yes, I can't get online using my laptop that is running Freespire.

please post the output of:

[as root]
lspci | grep -i ethernet

ifconfig -a

lsmod

lspci | grep -i ethernet

0000:0a:01.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139/8139c
/8139C+ (rev 10)
0000:0a)06.0 Ethernet controller: Atheros Communications, Inc.: Unknown device 0
01a (rev 01)


ifconfig -a

ath0 Link encap:Ethernet HWaddr 00:16:CE:6F:29:4A
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

eth0 Link encap:Ethernet HWaddr 00:163:42:79:A6
inet6 addr: fe80:216:d3ff:fe42:79a6/64 Scope:Link
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interupt:10 Base address:0xe000

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:30071 errors:0 dropped:0 overruns:0 frame:0
TX packets:30071 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2404587 (2.2 MiB) TX bytes:2404587 (2.2 MiB)

sit0 Link encap:IPv6-in-IPv4
NOARP NTU:1480 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)

wifi0 Link encap:UNSPEC HWaddr 00-16-CE-6F-29-4A-00-00-00-00-00-00-00-00-00-00
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets: errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:199
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
Interrupt:11 Memory:cea60000-cea70000





lsmod


Module Size Used by
parport_pc 39620 0
lp 11716 0
parport 35400 2 parport_pc,lp
video 16260 0
battery 10244 0
container 4608 0
fan 4740 0
button 6672 0
thermal 13576 0
ac 4996 0
realtime 6160 0
commoncap 7168 1 realtime
ipv6 253440 8
af_packet 22536 2
joydev 9536 0
pcspkr 3808 0
rtc 13368 0
yenta_socket 26252 1
pcmcia 30872 0
firmware_class 10368 1 pcmcia
rsrc_nonstatic 13184 1 yenta_socket
pmcia_core 41616 3 yenta_socket,pcmcia,rsrc_nonstatic
shpchp 94180 0
pci_hotplug 29108 1 shpchp
ipt_LOG 6912 1
ipt_limit 2560 4
ipt_state 2048 1
ip_conntrack_ftp 8048 0
ip_conntrack 54448 2 ipt_state,ip_conntrack_ftp
nfnetlink 6680 1 ip_conntrack
iptable_filter 3072 1
ip_tables 22272 4 ipt_LOG,ipt_limit,ipt_state,iptable_filter
ohci1394 34612 0
ieee1394 101688 1 ohci1394
usb_storage 74304 0
ntfs 195600 0
supermount 36884 1
loop 17160 0
vfat 13440 0
fat 54044 1 vfat
evdev 9472 1
snd_hda_intel 18176 4
snd_hda_codec 82944 1 snd_hda_intel
snd_pcm_oss 50464 0
snd_mixer_oss 17792 1 snd_pcm_oss
snd_pcm 88072 5 snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_page_alloc 10632 2 snd_hda_intel,snd_pcm
snd_seq_dummy 3844 0
snd_seq_oss 32640 0
snd_seq_midi 8864 0
snd_rawmidi 25248 1 snd_seq_midi
snd_seq_midi_event 7168 2 snd_seq_oss,snd_seq_midi
snd_seq 512166 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_mid i_event
snd_timer 24964 2 snd_pcm,snd_seq
snd_seq_device 8588 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi ,snd_seq
snd 55012 16 snd_hda_intel,snd_hda_codec,snd_pcm_oss,snd_mixer_ oss,snd
_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd _seq_device
soundcore 10080 1 snd
fglrx 453452 7
ati_agp 9228 0
agppart 34632 2 fglrx,ati_agp
wlan_scan_sta 14336 0
ath_pci 89632 0
ath_rate_sample 11904 1 ath_pci
wlan 180316 4 wlan_scan_sta,ath_pci,ath_rate_sample
ath_hal 199120 3 ath_pci,ath_rate_sample
8139too 27264 0
mii 5376 1 8139too
speedstep_lib 4228 0
freq_table 4612 0
processor 23484 1 thermal
edd 10208 0
lzf 3200 0
reiserfs 252272 1
psmouse 35716 0
ohci_hcd 21380 0
ehci_hcd 34184 0
usbcore 118116 4 usb_storage,onci_hcd,ehci_hcd




Please help me solve this problem.

[spencerf]

looks like your hardware is detected.

so try from the command line as root:

ifconfig eth0 up
dhcpcd eth0 (if this command not found try dhclient eth0)
ping -c2 google.com


give this a shot

[BIGMAN131307]

Here is what I came up with:

looks like your hardware is detected.

so try from the command line as root:

ifconfig eth0 up
dhcpcd eth0 (if this command not found try dhclient eth0)
ping -c2 google.com


give this a shot

so try from the command line as root:

ifconfig eth0 up

SIOCSIFFLAGS: Permssion denied

dhcpcd eth0

bash: dhcpcd: command not found

dhclient eth0

Internet Systems Consortium DHCP Client V3.0.1
Copyright 2004 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/products/DHCP

sit0: unknown hardware address type 776
wifi0: unknown hardware address type 801
can't create /var/lib/dhcp3/dhclient.leases: Permission denied
SIOCSIFADDR: Permission denied
SIOCSIFFLAGS: Permission denied
SIOCSIFFLAGS: Permission denied
/usr/sbin/mDNSResponder: no process killed
sit0: unknown hardware address typr 776
wifi0: unknown hardware address type 801
Open a socket for LPF: Operation not permitted

ping -c2 google.com

ping: unknown host google.com

************************************************** *******************


*Update*

A stupid fix solved the problem. I swaped the ethernet cable for a shorter one, now it works.
The one I had before was 25' long. The only reason why I was using that is because I wanted to bring my laptop to the otherside of my room. I didn't want to buy a wireless card because I wasn't
traveling with it yet.

Thanks to all the helped me in my search for the solution.

If you can help me get around the short ethernet cable, that would be great. What is the longest ethernet cable I can use?