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Old 01-27-2010, 08:40 AM   #46
Agrouf
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Quote:
Originally Posted by cantab View Post
Well this would explain things. The 'default gateway' should be your router, IP 10.1.1.254.

It also appears that you are not getting DHCP. Thus, try setting a static IP in the range 10.1.1.0-253


You would expect to be able to ping 10.1.1.254 too.
You would NOT expect to ping 192.168.0.1, since it doesn't exist on your network.
Really, the assumption that your network used the 192.168.1.0-254 IP range was never warranted, I'm not sure how it arose.
He did ping 192.168.0.2
from post #30:
Quote:
smith@smith-laptop:~$ ping -c 3 192.168.0.2
PING 192.168.0.2 (192.168.0.2) 56(84) bytes of data.
64 bytes from 192.168.0.2: icmp_seq=1 ttl=128 time=8.47 ms
64 bytes from 192.168.0.2: icmp_seq=2 ttl=128 time=2.70 ms
64 bytes from 192.168.0.2: icmp_seq=3 ttl=128 time=2.46 ms
His subnetwork is indeed 192.168.0.0/24
I believe his router is 192.168.0.2 because this is the host which offered the DHCP:
Quote:
smith@smith-laptop:~$ sudo dhclient eth1
Internet Systems Consortium DHCP Client V3.1.2
Copyright 2004-2008 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

Listening on LPF/eth1/00:25:56:66:4c:0d
Sending on LPF/eth1/00:25:56:66:4c:0d
Sending on Socket/fallback
DHCPREQUEST of 192.168.0.51 on eth1 to 255.255.255.255 port 67
DHCPNAK from 192.168.1.1
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 3
DHCPOFFER of 192.168.0.124 from 192.168.0.2
DHCPREQUEST of 192.168.0.124 on eth1 to 255.255.255.255 port 67
DHCPACK of 192.168.0.124 from 192.168.0.2
bound to 192.168.0.124 -- renewal in 260779 seconds.
LN*: here is the code to get connected to the internet:
Code:
sudo iwconfig eth1 essid "linksys_OW_45452"
sudo dhclient eth1
sudo route add default gw 192.168.0.2
(please copy and paste, it's CaSe sensitive!)

Last edited by Agrouf; 01-27-2010 at 09:04 AM.
 
Old 01-27-2010, 08:55 AM   #47
pixellany
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If you previously connected successfully using DHCP, then how did the router get a fixed IP?!!! I suspect that the IP you are showing is for the connection to the outside world, not for the access point**. In my experience, most wireless access points default to DHCP.

I have asked several times now for all the details of your setup---eg:
Who is your ISP?
What instructions do they provide for setup?
Who owns/manages the wireless router you are trying to connect to?

AND (I wonder why noone has asked this):
Can you connect to this access point with a Windows and/or Mac computer?
If so, what settings are they using?

My system:
Router (external) IP: 173.55.104.55 (If you ping this, you will not get to my computer, because the router acts as a firewall.)
Local network: DHCP--IPs assigned are 192.168.1.XXX The local address of the router is 192.168.1.1, and is also the nameserver address in resolv.conf. I believe that I can ALSO use the DNS addresses supplied by my ISP, but I have not tried that recently.
 
Old 01-27-2010, 11:50 AM   #48
LN Smith
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Tryed the commands and still could not gain access to the net! would it be easer to teather my cell phone on the broad band connection?
Quote:
smith@smith-laptop:~$ sudo iwconfig eth1 essid "linksys_OW_45452"
[sudo] password for smith:
smith@smith-laptop:~$ dhclient eth1
Internet Systems Consortium DHCP Client V3.1.2
Copyright 2004-2008 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

can't create /var/lib/dhcp3/dhclient.leases: Permission denied
SIOCSIFADDR: Permission denied
SIOCSIFFLAGS: Permission denied
SIOCSIFFLAGS: Permission denied
Open a socket for LPF: Operation not permitted
smith@smith-laptop:~$ sudo route add default gw 192.168.0.2
SIOCADDRT: No such process
smith@smith-laptop:~$
The wireless connection that i am trying to connect to can be connected to with a windows base laptop, ipod and the setting are IP Address 10.1.1.60 Subnet Mask 255.255.255.0 DNS 10.1.1.254
 
Old 01-27-2010, 01:48 PM   #49
schneidz
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^ fyi: sudo allows a permitted user to execute a command as the superuser (root user).
this is useful for things like configuring network devices that your smith user doesnt have permissions for.

also i am confused why ifconfig is determining your router as a class c network
but your windows laptop/ ipod is determining it as a class a network.
still doesnt explain why it is not dhcp-ing proerly
________________________

for the sake of completeness can you post:
Code:
sudo ifconfig eth1 up    # to turn on your network card
sudo iwlist eth1 scan    # to scan for available networks closeby and make sure linksys_OW_45452 is in the list
sudo iwconfig eth1 essid "linksys_OW_45452"     # to make your wifi card (eth1) bind to your routers case-sensitive ssid
sudo dhclient    # to automatically get network parameters
sudo ifconfig     # so we can see what ip address, subnet mask, broadcast, ... your router assigns
ping -c 5 192.168.0.1     # to see if you can ping your router (i think this is your router, if not try 192.168.0.2)
ping -c 5 216.187.52.6    # to see if you can ping out of your network
ping -c 5 www.something.com     # to see if your dns is working
cat /etc/resolv.conf     # to see what dns servers you have listed
cat /etc/network/interfaces     # maybe something in here is conflicting with something
copy and paste these commands if possible to reduce the chance of a typo.

Last edited by schneidz; 01-27-2010 at 02:20 PM.
 
Old 01-27-2010, 02:09 PM   #50
Agrouf
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LN*: Please copy and paste the commands!
I repeat: type that
Code:
sudo iwconfig eth1 essid "linksys_OW_45452"
sudo dhclient eth1
sudo route add default gw 192.168.0.2
don't forget the sudo!
if that does not work type that:
Code:
sudo ifconfig eth1 10.1.1.60 netmask 255.255.255.0 up
sudo gedit /etc/resolv.conf
and add that line:
Code:
nameserver 10.1.1.254

Last edited by Agrouf; 01-27-2010 at 02:43 PM.
 
Old 01-27-2010, 03:01 PM   #51
pixellany
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Quote:
Originally Posted by LN Smith View Post
Tryed the commands and still could not gain access to the net! would it be easer to teather my cell phone on the broad band connection?
The wireless connection that i am trying to connect to can be connected to with a windows base laptop, ipod and the setting are IP Address 10.1.1.60 Subnet Mask 255.255.255.0 DNS 10.1.1.254
Those are the same settings that you stated earlier. In response, I suggested that that IP was probably the external IP---ie the one on the Internet side of your router.

If that were the IP in the Windows computer, two things would be true:
1. It would mean that you (or someone) had configured the router for static IP
2. You would not be able to connect another computer using the same IP.

To confirm--in the Windows computer--open a terminal and enter "ipconfig \all" (I might have the slash backwards). Tell us what the IP is on the wireless connection.


I do not understand why you won't answer my earlier questions about your overall configuration. (Apologies if I've missed it.)

More generally, I see a pattern in which you selectively respond to the inputs you are getting---You really need to respond to every post (if only to say that you need clarification, you already tried it--whatever.)
 
Old 01-28-2010, 07:39 AM   #52
LN Smith
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Yes the router that i am trying to connect to was given a static address. This is one that i know was assessable and was hoping to connect to the net to get updated, then delete after i get updated so i can connect to a public one again.

Hear is Agrouf results:
Quote:

smith@smith-laptop:~$ sudo iwconfig eth1 essid "linksys_OW_45452"
[sudo] password for smith:
smith@smith-laptop:~$ sudo dhclient eth1
There is already a pid file /var/run/dhclient.pid with pid 2518
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.1.2
Copyright 2004-2008 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

Listening on LPF/eth1/00:25:56:66:4c:0d
Sending on LPF/eth1/00:25:56:66:4c:0d
Sending on Socket/fallback
DHCPREQUEST of 192.168.0.51 on eth1 to 255.255.255.255 port 67
DHCPREQUEST of 192.168.0.51 on eth1 to 255.255.255.255 port 67
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 15
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 15
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 9
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 8
No DHCPOFFERS received.
Trying recorded lease 192.168.0.51
PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.

--- 192.168.0.1 ping statistics ---
1 packets transmitted, 0 received, +1 errors, 100% packet loss, time 0ms

Trying recorded lease 192.168.0.124
bound: renewal in 87082 seconds.
smith@smith-laptop:~$ sudo route add default gw 192.168.0.2
smith@smith-laptop:~$ sudo ifconfig eth1 10.1.1.60 netmask 255.255.255.0 up
smith@smith-laptop:~$ sudo gedit /etc/resolv.conf
smith@smith-laptop:~$
Hear is schneidz results:
Quote:
sudo ifconfig eth1 up # to turn on your network card
[sudo] password for smith:
smith@smith-laptop:~$ sudo iwlist eth1 scan # to scan for available networks closeby and make sure linksys_OW_45452 is in the list
eth1 Scan completed :
Cell 01 - Address: 00:18:39:72:9C:23
ESSID:"linksys_OW_45452"
Mode:Managed
Frequency:2.462 GHz (Channel 11)
Quality:4/5 Signal level:-65 dBm Noise level:-92 dBm
Encryption keyff
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s; 6 Mb/s; 9 Mb/s
12 Mb/s; 48 Mb/s
Cell 02 - Address: 46:B2:56:91:6C:24
ESSID:"Free Public WiFi"
Mode:Ad-Hoc
Frequency:2.462 GHz (Channel 11)
Quality:0/5 Signal level:-91 dBm Noise level:-76 dBm
Encryption keyff
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s

smith@smith-laptop:~$ sudo iwconfig eth1 essid "linksys_OW_45452" # to make your wifi card (eth1) bind to your routers case-sensitive ssid
smith@smith-laptop:~$ sudo iwconfig eth1 essid "linksys_OW_45452"
smith@smith-laptop:~$ sudo dhclient
There is already a pid file /var/run/dhclient.pid with pid 2550
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.1.2
Copyright 2004-2008 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

Listening on LPF/pan0/86:51:0e:40:42:00
Sending on LPF/pan0/86:51:0e:40:42:00
Listening on LPF/eth1/00:25:56:66:4c:0d
Sending on LPF/eth1/00:25:56:66:4c:0d
Sending on Socket/fallback
DHCPREQUEST of 192.168.0.51 on eth1 to 255.255.255.255 port 67
DHCPDISCOVER on pan0 to 255.255.255.255 port 67 interval 3
DHCPREQUEST of 192.168.0.51 on eth1 to 255.255.255.255 port 67
DHCPDISCOVER on pan0 to 255.255.255.255 port 67 interval 4
DHCPDISCOVER on pan0 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on pan0 to 255.255.255.255 port 67 interval 15
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 11
DHCPDISCOVER on pan0 to 255.255.255.255 port 67 interval 10
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 19
DHCPDISCOVER on pan0 to 255.255.255.255 port 67 interval 13
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 14
DHCPDISCOVER on pan0 to 255.255.255.255 port 67 interval 9
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
smith@smith-laptop:~$ sudo ifconfig
eth1 Link encap:Ethernet HWaddr 00:25:56:66:4c:0d
inet addr:192.168.0.124 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::225:56ff:fe66:4c0d/64 Scope:Link
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:18 errors:0 dropped:0 overruns:0 frame:207
TX packets:25 errors:370 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:3191 (3.1 KB) TX bytes:4380 (4.3 KB)
Interrupt:16 Base address:0xc000

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:113 errors:0 dropped:0 overruns:0 frame:0
TX packets:113 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:10605 (10.6 KB) TX bytes:10605 (10.6 KB)

pan0 Link encap:Ethernet HWaddr 86:51:0e:40:42:00
inet6 addr: fe80::8451:eff:fe40:4200/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:315 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 B) TX bytes:73490 (73.4 KB)

pan0:avahi Link encap:Ethernet HWaddr 86:51:0e:40:42:00
inet addr:169.254.3.54 Bcast:169.254.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

smith@smith-laptop:~$ ping -c 5 192.168.0.1
PING 192.168.0.1 (192.168.0.1) 56(84) bytes of data.
From 192.168.0.124 icmp_seq=1 Destination Host Unreachable
From 192.168.0.124 icmp_seq=2 Destination Host Unreachable
From 192.168.0.124 icmp_seq=3 Destination Host Unreachable
From 192.168.0.124 icmp_seq=4 Destination Host Unreachable
From 192.168.0.124 icmp_seq=5 Destination Host Unreachable

--- 192.168.0.1 ping statistics ---
5 packets transmitted, 0 received, +5 errors, 100% packet loss, time 4021ms
, pipe 3
smith@smith-laptop:~$ ping -c 5 216.187.52.6
connect: Network is unreachable
smith@smith-laptop:~$ ping -c 5 www.something.com
ping: unknown host www.something.com
smith@smith-laptop:~$
 
Old 01-28-2010, 08:23 AM   #53
pixellany
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Quote:
Yes the router that i am trying to connect to was given a static address.
OK:
The router can be given a static address on the outside**, but still use DHCP on the inside**. Please go back and read my comments in this regard.

Also, I asked you to check the IP on the Windows box using "ipconfig"

Even if the router is configured with static IPs inside, you would not be able to use the same IP for two different computers. (You told us the IP you used for a Windows computer, and then you said you were trying to use the SAME IP for your Linux box.)

THIRD REQUEST:
Please give us all of the details of what you are trying to connect to--for example:
The ISP that provides the connection to the router
The owner/administrator of the router
The settings for both sides of the router (WAN and LAN) (If the router is really set for fixed IP on the LAN side, then there should be several IPs available.)
The DNS settings provided by the ISP and/or the router administrator
Number and type of computers on the LAN
and anything else you think might be relevant



**The proper terms are:
WAN (wide area network)---in this case the router connection to the internet
LAN (local area network)

When you connect a router to the internet using the connection supplied by the ISP, that side is the WAN. The router then offers several connections (wired and/or wireless) which allows creation of a LAN. As I stated earlier, most routers will default to DHCP on the LAN side.
 
Old 01-28-2010, 08:36 AM   #54
Agrouf
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LN Smith: Your router has been configured differently or your environment has changed. The results are not consistant with earlier results. There was a DHCP on 192.168.0.2 earlier and now there is no more. It is extremely hard to see what does not work when the environment is changing. You need to tell us when you change something on your router. Actually, we know nothing about your network because you didn't explain it to us. It looks like there are more than one machine and that one of them is connected to the internet. It looks like there is a linksys (probably) router but we don't even know if it is connected to the internet or not, and a new "free public wifi" hotspot. We don't know which one you want to connect to. We don't even know if you are at home connected to your ISP or at work in a big corporation with thousands of computers connected together with a complex routing setup. We are just trying to make wild guesses or asking directly the machine (most commands you typed were to discover what your setup looks like)

Next thing: You need to understand what you type and read what the computer answers to your typing. This is very important that you read the response. It usually contains valuable information and explains exactly what is wrong if something is wrong. When it says that you do not have privileges, it means you forgot to use the "sudo" command. If it says "command not found", it probably means that the command was not typed correctly. If it says "wrong parameters", it means that the parameters were not entered correctly. If it says "wrong password", it means you typed the password wrong, etc... read it as it can save you a lot of time.

So, I'm going by your words. You said you want to use IP Address 10.1.1.60 with Subnet Mask 255.255.255.0 and DNS 10.1.1.254. This is not enough to connect to the internet. You also need a default gateway. Look in Windows what is your default gateway. Let's say your default gateway is x.y.z.w (it's NOT that! this is an example, your real default gateway must be 4 numbers separated by dots)
Code:
sudo iwconfig eth1 essid "linksys_OW_45452" 
sudo ifconfig eth1 10.1.1.60 netmask 255.255.255.0 up
sudo route add default gw x.y.z.w
sudo gedit /etc/resolv.conf
and add that line:
Code:
nameserver 10.1.1.254
Don't forget to replace x.y.z.w by your default gateway!
I hope you understand what each command mean! And please read the output and be very careful not to make typos.
If that is what your windows computer is using and if your windows computer can connect to the internet, those command should make you connected to the internet, provided your windows computer is NOT connected at the same time and that this computer is in the same subnetwork as your windows computer.

Last edited by Agrouf; 01-28-2010 at 08:47 AM.
 
Old 01-28-2010, 08:54 AM   #55
pixellany
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Quote:
LN Smith: Your router has been configured differently or your environment has changed.
Yes--note that on at least one occassion, he/she was actually connected---using DHCP and with an IP address totally different from the one given more recently.

We will keep hoping for complete information.....
 
Old 01-28-2010, 09:11 AM   #56
Agrouf
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Quote:
Originally Posted by pixellany View Post
Yes--note that on at least one occassion, he/she was actually connected---using DHCP and with an IP address totally different from the one given more recently.

We will keep hoping for complete information.....
Indeed and I can count at least 3 machines in addition to the one he is trying to configure. He pinged 192.168.0.1 and 192.168.0.2. 192.168.0.1 is still responding. 192.168.0.2 is no more responding and offered DHCP at one time. Both machines are supposed to offer DNS as well since they are in /etc/resolv.conf. 192.168.0.1 is probably the linksys router, but it does not offer DHCP. I also saw 192.168.1.1 at one time. There is also a new access point: "Free Public Wifi". We don't know if he wants to connect to the linksys or to this one actually.

Last edited by Agrouf; 01-28-2010 at 09:14 AM.
 
Old 01-28-2010, 12:50 PM   #57
LN Smith
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Ok let me try this again.
I am by no means or pretend to be a programmer, I am only starting to get to know this system. up until now it was all done by windows based programs. The internet system that i am trying to connect is on a secured network. a wireless router(linksys_OW_45452) was put in at the time of the instalation to provide access to the internet by others. This is the one connection at work that i know the addresses to. The Free Public Wifi one is one that is located close to my location but it is hit and miss on connecting.

As far as setting up the IP addresses, DNS, SubnetMask, Default Gateway and pings and things, are all Greek to me. I know a little about then from years ago using DOS.
I can get the IP address and gateway addresses, etc from my LAN connection off my desktop. That is networked to others in the building on the system.

Those I tried to put into the Network Connection program manually on the Mini HP with the Ubuntn OS. Then not turning on my desktop computer I tried to connect to the internet but can not get it to work. That is why I was wondering if I needed a Network Controller Program like WICD to get connected with? I have not, or do not know how to connect by using the programing in the "Terminal" window?

All the information that I have given to you is all that i know, and what I am learning. If there is a easier way please let me know? At this point I am willing to try about anything! From what I am learning and reading about this Ubuntn you really need the internet connection to get updated? and I am finding out that I will have to learn more about programing to be able to install a program , like WICD without being connected to the internet.

Thanks for all the help and understanding.
 
Old 01-28-2010, 02:42 PM   #58
Agrouf
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OK, please try to type those commands:
Code:
sudo iwconfig eth1 essid "linksys_OW_45452" 
sudo ifconfig eth1 192.168.0.51 netmask 255.255.255.0 up
sudo route add default gw 192.168.0.2
Then, open a browser and type http://192.168.0.2 in the address bar and tell me if you see a page related to linksys.
Then please tell me if you can go to www.linuxquestions.org. If you can not, please tell me if you can go to http://75.126.162.205
 
Old 01-28-2010, 02:46 PM   #59
pixellany
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LN*;

I am just leaving for a meeting, but I want to give you some quick feedback.

the best thing you could do for everyone is to write a very short, but complete, summary of your configuration, what you have tried and your response to ALL of the questions you have been asked. We are just now learning that you have been trying to connect to two different access points---if that is still the case, we need complete details on both.

With respect to the one with the IP beginning in "10". You say you disconnected one computer and then tried with the Ubuntu laptop. But you never ran ipconfig for me on the Windows box. We still don't know for sure if the wireless is really set up with static IP on the LAN side. How about the person that administers that wireless router?---they would know.

Again: A short, complete summary including responses to ALL questions, suggestions, etc. so far.
 
Old 01-29-2010, 03:26 AM   #60
Agrouf
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Quote:
Originally Posted by Agrouf View Post
OK, please try to type those commands:
Code:
sudo iwconfig eth1 essid "linksys_OW_45452" 
sudo ifconfig eth1 192.168.0.51 netmask 255.255.255.0 up
sudo route add default gw 192.168.0.2
Then, open a browser and type http://192.168.0.2 in the address bar and tell me if you see a page related to linksys.
Then please tell me if you can go to www.linuxquestions.org. If you can not, please tell me if you can go to http://75.126.162.205
If that does not work, please try that:
Code:
sudo iwconfig eth1 essid "linksys_OW_45452" 
sudo ifconfig eth1 192.168.0.51 netmask 255.255.255.0 up
sudo route add default gw 192.168.0.1
Then, try to open http://192.168.0.1,http://75.126.162.205 and www.linuxquestions.org
 
  


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