Re: associated to AP (WEP mode) && no IP addr via DHCP

Matthias Apitz wrote:
> Hello,
>
> I'm going frequently to a Greek restaurant in my town to have dinner
> there or some red wine, and reading stuff;
>
> the owner of the restaurant has a Wifi zone and gave me, as its best
> client, the WEP-key to connect to Internet; the problem is that he does
> not have the admin password of the AP (some else configured it) and so I
> can't have a look into the config of the AP;
>
> my /etc/wpa_supplicant.conf for the AP is:
>
> # Restaurante Odyssey (2007-11-18)
> #
> network={
>         ssid="ConnectionPoint"
>         scan_ssid=0
>         key_mgmt=NONE
>         wep_tx_keyidx=0
>         wep_key0=xxxxxxxxxxxxxxxxxxxxxx
> }
>
> and the interface associates fine:
>
> # ifconfig ath0
> ath0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
> 	ether 00:15:af:b2:ae:e6
> 	inet 0.0.0.0 netmask 0xff000000 broadcast 255.255.255.255
> 	media: IEEE 802.11 Wireless Ethernet autoselect (OFDM/36Mbps)
> 	status: associated
> 	ssid ConnectionPoint channel 11 (2462 Mhz 11g) bssid 00:01:e3:0e:97:99
> 	authmode OPEN privacy ON deftxkey 1 wepkey 1:104-bit txpower 31.5
> 	bmiss 7 scanvalid 60 protmode CTS burst roaming MANUAL
>
> but a DHCP request does not give me any IP addr; with 
>
> # tcpdump -n -i ath0 
>
> it says:
>
> 19:01:01.603869 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 00:15:af:b2:ae:e6, length 300
> 19:01:02.036549 00:01:e3:0e:97:98 Unknown SSAP 0x2c > ff:ff:ff:ff:ff:ff Unknown DSAP 0xa2 Information, send seq 98, rcv seq 39, Flags [Command], length 36
> 19:01:02.958057 00:01:e3:0e:97:98 ProWay NM > ff:ff:ff:ff:ff:ff Unknown DSAP 0x5c Supervisory, Reject, rcv seq 8, Flags [Response], length 36
> 19:01:04.186892 00:01:e3:0e:97:98 Unknown SSAP 0xbe > ff:ff:ff:ff:ff:ff Unknown DSAP 0x44 Supervisory, Reject, rcv seq 39, Flags [Final], length 36
> 19:01:09.606218 IP 0.0.0.0.68 > 255.255.255.255.67: BOOTP/DHCP, Request from 00:15:af:b2:ae:e6, length 300
>
> this situation is already for monthes and I gave up and always use UMTS
> if I want connect to Internet; until yesterday I was thinking in some
> kind of MAC addr filter in the AP, but ....
>
> yesterday I was there with a friend who has a Nokia mobile E51 device; I
> gave him the key, he associated like me and got in the next second IP,
> DNS and all was fine;
>
> what is that for a problem? it is not ath0 related because my other
> laptop with iwi0 does not get IP either;
>
> what can I provide as information to nail this down?
>   
What does athstats show for crypto errors?  If the WEP-encrypted packet 
is dropped by the h/w then you will see the counter bump.

Based on the above you are not running HEAD; if you can try that I can 
help more.

    Sam

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