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Old 02-04-2008, 11:15 AM
oxy
 
Default dhcp connects but cannot resolve names

Hi friends,
i get a wifi dhcp connection at home, but cannot resolve names.
I can ping ip addresses around the world, but cannot ping hostnames,
since they are not resolved. I configured with iwconfig, iwpriv
as shown bellow. The first configuration i tried with network manager.
No success, but many people report problems with it anyway.
Take a look at my main steps to connection:

me% iwconfig ath0 essid <server name> key <numbers>
me% iwpriv ath0 authmode 1
me% iwconfig ath0 ap <hardware address>

me% dhclient ath0
There is already a pid file /var/run/dhclient.pid with pid 5104
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.0.4
Copyright 2004-2006 Internet Systems Consortium.
All rights reserved.
For info, please visit http://www.isc.org/sw/dhcp/

wifi0: unknown hardware address type 801
wifi0: unknown hardware address type 801
Listening on LPF/ath0/<hardware address>
Sending on LPF/ath0/<hardware address>
Sending on Socket/fallback
DHCPREQUEST on ath0 to 255.255.255.255 port 67
DHCPACK from 192.168.2.1
bound to 192.168.2.36 -- renewal in 164964 seconds.

me% echo "but i am connected, look the ping .."
me% ping 64.233.187.99
PING 64.233.187.99 (64.233.187.99) 56(84) bytes of data.
64 bytes from 64.233.187.99: icmp_seq=3 ttl=240 time=194 ms
64 bytes from 64.233.187.99: icmp_seq=4 ttl=240 time=189 ms
64 bytes from 64.233.187.99: icmp_seq=7 ttl=240 time=186 ms
... ... ...

me% ifconfig ath0
ath0 Link encap:Ethernet HWaddr <hardware address>
inet addr:192.168.2.36 Bcast:192.168.2.255 Mask:255.255.255.0
inet6 addr: fe80::bla bla bla/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:572 errors:0 dropped:0 overruns:0 frame:0
TX packets:493 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:186953 (182.5 KiB) TX bytes:102942 (100.5 KiB)

me% route add default gw 192.168.2.36
me% nslookup www.yahoo.com
;; connection timed out; no servers could be reached

me% echo "its a debian etch, madwifi driver, atheros r5.... card :-)
thanks in advance for any help ..."


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Old 02-04-2008, 01:32 PM
Vincent Lefevre
 
Default dhcp connects but cannot resolve names

On 2008-02-04 13:15:17 +0100, oxy wrote:
> i get a wifi dhcp connection at home, but cannot resolve names.

Bug 462570?

--
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100% accessible validated (X)HTML - Blog: <http://www.vinc17.org/blog/>
Work: CR INRIA - computer arithmetic / Arenaire project (LIP, ENS-Lyon)


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Old 02-04-2008, 01:46 PM
Michael Shuler
 
Default dhcp connects but cannot resolve names

On Mon, 4 Feb 2008 13:15:17 +0100, oxy <oxyopes@googlemail.com> wrote:
> me% dhclient ath0
> There is already a pid file /var/run/dhclient.pid with pid 5104
> killed old client process, removed PID file
> Internet Systems Consortium DHCP Client V3.0.4
> Copyright 2004-2006 Internet Systems Consortium.
> All rights reserved.
> For info, please visit http://www.isc.org/sw/dhcp/
>
> wifi0: unknown hardware address type 801
> wifi0: unknown hardware address type 801
> Listening on LPF/ath0/<hardware address>
> Sending on LPF/ath0/<hardware address>
> Sending on Socket/fallback
> DHCPREQUEST on ath0 to 255.255.255.255 port 67
> DHCPACK from 192.168.2.1
> bound to 192.168.2.36 -- renewal in 164964 seconds.
>
> me% ifconfig ath0
> ath0 Link encap:Ethernet HWaddr <hardware address>
> inet addr:192.168.2.36 Bcast:192.168.2.255 Mask:255.255.255.0

The DHCP server at 192.168.2.1 handed you an address - OK. It should have also handed the client additional network information such as a default route, name servers, etc.

> me% route add default gw 192.168.2.36

This is incorrect. The gateway will be a router - you have defined the default gateway to be your own client machine. I would start over downing the ath0 interface, and going back through your routine, stopping after you get an IP from 'dhclient ath0'.

Assuming the DHCP server is also the gateway router (and the DHCP server is configured properly), you should already have a default gateway route of 192.168.2.1. What is the output of the command 'route -n'?

> me% nslookup www.yahoo.com
> ;; connection timed out; no servers could be reached

Check the contents of /etc/resolv.conf for 'nameserver [IP_address]' entries. 'cat /etc/resolv.conf'? Can you ping those IP addresses?

To see what the DHCP server is actually handing the client, 'cat /var/lib/dhcp3/dhclient.ath0.leases', please.

--
Kind Regards,
Michael Shuler


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Old 02-04-2008, 04:10 PM
oxy
 
Default dhcp connects but cannot resolve names

Hi friends,
i got the connection with this /etc/network/interfaces file:

iface ath0 inet dhcp
wireless-essid xxxxxxxxxxx
wireless-key <a number>
auto ath0

My question now is, something is asking me on boot time
which connection i should try, netenv.conf or new connection.
Can i disable that?

Also, how can i inform in /etc/network/interfaces that my connection
is Master, WEP, open?

I wanna know details for next configurations.
Thank you very much for the nice help ...


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