Penny Arcade Forums› Help / Advice Forum
The new forums will be named Coin Return (based on the most recent vote)! You can check on the status and timeline of the transition to the new forums here.
The Guiding Principles and New Rules document is now in effect.

ubuntu networking

alcoholic_engineeralcoholic_engineer Registered User regular
edited February 2007 in Help / Advice Forum
So i was an idiot, and accidentally changed my network settings when I took my laptop to school. Can someone running ubuntu post their /etc/network/interfaces files, so I can compare it.

I am running a wep, with the wireless connection set as ath0.

For some reason I am able to occasionally make the internet work, but when I restart, I lose all connectivity. It is very iffy to revive.

thanks

alcoholic_engineer on

Posts

  • BarrakkethBarrakketh Registered User regular
    edited January 2007
    alcoholic_engineer wrote:
    So i was an idiot, and accidentally changed my network settings when I took my laptop to school. Can someone running ubuntu post their /etc/network/interfaces files, so I can compare it.

    I am running a wep, with the wireless connection set as ath0.

    For some reason I am able to occasionally make the internet work, but when I restart, I lose all connectivity. It is very iffy to revive.

    thanks
    Eh...I'm not going to post mine because it wouldn't help you at all. However, is there more than one network interface (aside from loopback) that are being started on boot?

    Barrakketh on
    Rollers are red, chargers are blue....omae wa mou shindeiru
  • alcoholic_engineeralcoholic_engineer Registered User regular
    edited January 2007
    here it is 
    auto lo
iface lo inet loopback

iface eth0 inet dhcp

auto eth1
#iface eth1 inet dhcp

auto eth2
#iface eth2 inet dhcp

auto ath0
iface ath0 inet dhcp 
wireless-essid ***
wireless-key s:*******************

auto wlan0
iface wlan0 inet dhcp

    alcoholic_engineer on
  • BarrakkethBarrakketh Registered User regular
    edited January 2007
    alcoholic_engineer wrote:
    here it is 
    auto lo
iface lo inet loopback

iface eth0 inet dhcp

auto ath0
iface ath0 inet dhcp 
wireless-essid ***
wireless-key s:*******************

auto wlan0
iface wlan0 inet dhcp
    Maybe there's something odd about the way the drivers for your wireless works, but why is there a wlan0 entry active along with ath0?

    The auto entries for eth* should be commented out.

    Barrakketh on
    Rollers are red, chargers are blue....omae wa mou shindeiru
  • alcoholic_engineeralcoholic_engineer Registered User regular
    edited January 2007
    no change, it still doesnt want to connect.

    even when I just try and set up the connection every time i turn it on, it is a bitch to try and get working.

    alcoholic_engineer on
  • BarrakkethBarrakketh Registered User regular
    edited February 2007
    alcoholic_engineer wrote:
    no change, it still doesnt want to connect.

    even when I just try and set up the connection every time i turn it on, it is a bitch to try and get working.
    What does "iwconfig" return after you boot up (and are still unable to connect)?

    Barrakketh on
    Rollers are red, chargers are blue....omae wa mou shindeiru
  • alcoholic_engineeralcoholic_engineer Registered User regular
    edited February 2007
    it looks something like this
    lo, eth0, sit0 all have no wireless extension

    the ath0 gives the following info though
    IEEE 802.11 ESSID:"**"
mode: managed        frequency:2.412ghz       access point: Not-Associated
bit rate: 1 mb/s  tx-power: 18dbm  sensitivity= 0/3
retry:off       rts thr:off   fragment thr:off
power management:off
link quality=0/94
signal level=-95dbm    noise level= -95dbm   
Rx invalid nwid:0      rx invalid crypt:0   rx invlid crypt:0
Tx excessive retries:0     invalid misc:0    missed beacon:0

    every other time that I havent got my network set up right, it takes a few tries, but I am able to connect to the network eventually. This time I have only been able to connect once in 3 days. (it isnt the network because I am using my other computer to type this).

    alcoholic_engineer on
  • BarrakkethBarrakketh Registered User regular
    edited February 2007
    What wireless adapter are you using?

    What's the output of 
    sudo /etc/init.d/networking restart
    ?

    Barrakketh on
    Rollers are red, chargers are blue....omae wa mou shindeiru
  • alcoholic_engineeralcoholic_engineer Registered User regular
    edited February 2007
    i am typing this on my other computer so i am gonna just summarize.

    the send packet: network is unreachable
    error for wireless request "set encode" (8b2a)
    set failed on device ath0; invalid argument

    a bunch of crap

    dhcpdiscover on ath0 to 255.255.255.255 port 67 intervals 6, 12, 13, 15, 7, 8
    no dhcpoffers recieved
    no working leases in persistant database - sleeping

    sicosifaddr: no such device
    wlan0:error while getting interface flags: no such device
    bind socket to interface: no such device
    failed to bring up wlan0

    alcoholic_engineer on
  • BarrakkethBarrakketh Registered User regular
    edited February 2007
    Try "sudo modprobe wlan_wep" and then restart networking again. Anything change?

    Barrakketh on
    Rollers are red, chargers are blue....omae wa mou shindeiru
  • alcoholic_engineeralcoholic_engineer Registered User regular
    edited February 2007
    no change at all: just my eth0 was restarted for some reason.

    alcoholic_engineer on
  • BarrakkethBarrakketh Registered User regular
    edited February 2007
    Does: 
    sudo iwlist scan
    list your router (I'm assuming that you haven't diabled SSID broadcasting on it)?

    EDIT: You haven't stated what wireless adapter you're using yet.

    Barrakketh on
    Rollers are red, chargers are blue....omae wa mou shindeiru
  • alcoholic_engineeralcoholic_engineer Registered User regular
    edited February 2007 
    lo        Interface doesn't support scanning.

eth0      Interface doesn't support scanning.

ath0      Scan completed :
          Cell 01 - Address: 00:18:3F:E6:9A:E9
                    ESSID:"i-a-khan"
                    Mode:Master
                    Frequency:2.437 GHz (Channel 6)
                    Quality=5/94  Signal level=-90 dBm  Noise level=-95 dBm
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Extra:bcn_int=100
          Cell 02 - Address: 00:19:E4:1C:05:09
                    ESSID:"hbprint"
                    Mode:Master
                    Frequency:2.447 GHz (Channel 8)
                    Quality=2/94  Signal level=-93 dBm  Noise level=-95 dBm
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Extra:bcn_int=100
          Cell 03 - Address: 00:18:F8:3E:B1:83
                    ESSID:"linksys_SES_32437"
                    Mode:Master
                    Frequency:2.437 GHz (Channel 6)
                    Quality=16/94  Signal level=-79 dBm  Noise level=-95 dBm
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Extra:bcn_int=100
                    Extra:wpa_ie=dd180050f20101000050f20201000050f20201000050f20 20000
          Cell 04 - Address: 00:18:F8:3F:25:C0
                    ESSID:"graynet"
                    Mode:Master
                    Frequency:2.437 GHz (Channel 6)
                    Quality=5/94  Signal level=-90 dBm  Noise level=-95 dBm
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Extra:bcn_int=100
                    Extra:wpa_ie=dd180050f20101000050f20201000050f20201000050f20 20000
          Cell 05 - Address: 00:14:BF:AF:61:5B
                    ESSID:"DeanLinksys"
                    Mode:Master
                    Frequency:2.437 GHz (Channel 6)
                    Quality=1/94  Signal level=-94 dBm  Noise level=-95 dBm
                    Encryption key:on
                    Bit Rates:1 Mb/s; 2 Mb/s; 5 Mb/s; 6 Mb/s; 9 Mb/s
                              11 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s; 36 Mb/s
                              48 Mb/s; 54 Mb/s
                    Extra:bcn_int=100
                    Extra:wpa_ie=dd180050f20101000050f20201000050f20201000050f20 20000

sit0      Interface doesn't support scanning.

    and as for the wireless adaptor, it is a ar5212 802.11b/g

    alcoholic_engineer on
  • BarrakkethBarrakketh Registered User regular
    edited February 2007
    Is the computer that you're typing this on wired, or using wireless as well? It looks like there is a ton of "noise" in your area. The only router in that list I see that would be even remotely usable is linksys_SES_32437.

    Barrakketh on
    Rollers are red, chargers are blue....omae wa mou shindeiru
  • alcoholic_engineeralcoholic_engineer Registered User regular
    edited February 2007
    yea, the linksys is mine: my desktop is running wireless as well, and I never have any issues with its connectivity.

    alcoholic_engineer on
  • alcoholic_engineeralcoholic_engineer Registered User regular
    edited February 2007
    holy crap, it works for some reason now: I switched it from dhcp for a minute and then back (i was just messing around) and now the damn thing works.

    fuckin weird- thanks very much for your help though

    alcoholic_engineer on
Sign In or Register to comment.
Penny Arcade Forums› Help / Advice Forum