Dlink Dwa 125 On red hat

[aashu4uiit]

I am trying to configure Dlink DWA 125 Wireless LAN Card on Red Hat 5.5 , in forums i see people have configured
this one and here are few things which I have done. I can see my hardware and Network Manager also says that
I am connected to my Wifi "ashhome" but then also inetrnet does not work

If I ping yahoo.com it says " host unreachable "

100% packet drops .I am using NON DHCP System , and IP Addresses are assigned manually.

rootorahost:~[rootorahost ~]# uname -a
Linux orahost 2.6.18-194.el5xen #1 SMP Mon Mar 29 20:31:17 EDT 2010 i686 athlon i386 GNU/Linux
rootorahost:~[rootorahost ~]#

rootorahost:~[rootorahost ~]# n,[K[Knm-tool

NetworkManager Tool

State: disconnected

- Device: __tmp1487218476 ----------------------------------------------------------------
  Type:              Wired
  Driver:            tlan
  State:             disconnected
  Default:           no
  HW Address:        00:80:5F:95:87:12

  Capabilities:
    Supported:       yes

  Wired Settings


- Device: eth1 ----------------------------------------------------------------
  Type:              Wired
  Driver:            forcedeth
  State:             unavailable
  Default:           no
  HW Address:        00:1F:D0:BA:E0:90

  Capabilities:
    Supported:       yes
    Carrier Detect:  yes

  Wired Settings


- Device: eth0 ----------------------------------------------------------------
  Type:              802.11 WiFi
  Driver:            usb
  State:             disconnected
  Default:           no
  HW Address:        00:00:00:00:00:00

  Capabilities:
    Supported:       yes

  Wireless Settings
    WEP Encryption:  yes
    WPA Encryption:  yes
    WPA2 Encryption: yes

  Wireless Access Points


rootorahost:/var/lib/dhclient[rootorahost dhclient]# dhclient eth0
Internet Systems Consortium DHCP Client V3.0.5-RedHat
Copyright 2004-2006 Internet Systems Consortium.
Listening on LPF/eth0/00:00:00:00:00:00
Sending on   LPF/eth0/00:00:00:00:00:00
Sending on   Socket/fallback
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 11
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 20
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 11
DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 11

rootorahost:/var/lib/dhclient[rootorahost dhclient]# iwconfig 
lo        no wireless extensions.

__tmp1487218476  no wireless extensions.

peth0     RT3070 Wireless  ESSID:"11n-AP"  Nickname:"RT3070STA"
          Mode:Auto  Frequency=2.412 GHz  Access Point: Not-Associated   
          Bit Rate=1 Mb/s   
          RTS thr:off   Fragment thr:off
          Encryption key:off
          Link Quality=10/100  Signal level:-256 dBm  Noise level:-115 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0



I can see the RT module after installing the driver 

rootorahost:/var/lib/dhclient[rootorahost dhclient]# lsmod | grep rt
scsi_transport_iscsi2    37709  8 be2iscsi,ib_iser,iscsi_tcp,bnx2i,cxgb3i,libiscsi2
scsi_transport_iscsi     6085  1 scsi_transport_iscsi2
parport_pc             29157  1 
parport                37641  2 lp,parport_pc
RT3070STA             448332  1 
scsi_mod              142229  13 sr_mod,be2iscsi,ib_iser,iscsi_tcp,bnx2i,cxgb3i,libiscsi2,scsi_transport_iscsi2,scsi_dh,sg,usb_storage,libata,sd_mod
rootorahost:/var/lib/dhclient[rootorahost dhclient]# modprobe -r rt3070sta

LS Usb also shows that it's able to see the hardware 


rootorahost:/var/lib/dhclient[rootorahost dhclient]# lsusb
Bus 001 Device 004: ID 07d1:3c16 D-Link System 
Bus 001 Device 001: ID 0000:0000  
Bus 002 Device 004: ID 12d1:1446 Huawei Technologies Co., Ltd. E1552 (HSPA modem)
Bus 002 Device 001: ID 0000:0000  
Bus 002 Device 002: ID 04f3:0103 Elan Microelectronics Corp. 
Bus 002 Device 003: ID 1bcf:0007 Sunplus Innovation Technology Inc. Optical Mouse

Here my Wi Fi is running in managed mode

rootorahost:/var/lib/dhclient[rootorahost dhclient]# ifconfigwlist eth0 [K scanning[1p
peth0     Scan completed :
          Cell 01 - Address: 00:15:E9:00:00:02
                    Protocol:802.11b/g
                    ESSID:"ashhome"
                    Mode:Managed
                    Channel:2
                    Quality:94/100  Signal level:-53 dBm  Noise level:-115 dBm
                    Encryption key:on
                    Bit Rates:11 Mb/s

Not Sure how come my SSID got changed

rootorahost:~[rootorahost ~]# iwconfig 
lo        no wireless extensions.

__tmp1487218476  no wireless extensions.

peth0     RT3070 Wireless  ESSID:"11n-AP"  Nickname:"RT3070STA"
          Mode:Auto  Frequency=2.412 GHz  Access Point: Not-Associated   
          Bit Rate=1 Mb/s   
          RTS thr:off   Fragment thr:off
          Encryption key:off
          Link Quality=10/100  Signal level:-256 dBm  Noise level:-115 dBm
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

[Rubberman]

Post contents of /etc/resolv.conf here please.

[aashu4uiit]

Hey

Thanks for such a prompt reply .

Today I started my box again and now it's working . I am not sure how it started working now and if it will work again after reboot or not

Here are the contents of

cat /etc/resolv.conf

domain sg.<company>com
nameserver 144.20.190.70
nameserver 192.135.82.132


I am now conneted to my office vpn

Can you please give some insights how it started working now h

[Rubberman]

Resolv.conf contains the IP addresses of your DNS servers. If they are down, unreachable, or whatever, then your name -> address mappings will not work as designed. If your system has a dynamic IP address (dhcp issued) then there isn't much you can do, as the DHCP server will issue the DNS server address(es). If it is static, then you can specify what they are, including some "well known" DNS server addresses on the internet.