URL: https://linuxfr.org/forums/linux-general/posts/probleme-wifi-avec-ubuntu-sur-laptop
Title: Probleme wifi avec ubuntu sur laptop
Authors: lolovroom
Date: 2006年09月26日T21:08:33+02:00
Tags: ubuntu
Score: 0
Bonjour, 
 
J'ai pu lire sur ce forum divers thread sur le sujet, mais je ne trouve pas la solution de mon problème. 
 
En effet, j'en suis à la fin de ce thread : [http://linuxfr.org/forums/10/4196.html](http://linuxfr.org/forums/10/4196.html) 
 
Ou l'on se pose la question si il y a un serveur dhcp. 
 
Dans mon cas, il y a un serveur dhcp (ça marche avec windows). 
Quand je configure une ip statique dans le même subnet que le router, je ne peux pas pinger le router wifi. Le laptop est un acer extensa 4100 et le router wifi un linksys. 
 
En résumé, voici la config : 
 
#iwconfig eth1 
 
eth1 IEEE 802.11g ESSID:"Asamjawa" 
Mode:Managed Frequency:2.412 GHz Access Point: 00:12:17:10:11:6C 
Bit Rate=54 Mb/s Tx-Power=20 dBm Sensitivity=8/0 
Retry limit:7 RTS thr:off Fragment thr:off 
Power Management:off 
Link Quality=94/100 Signal level=-33 dBm Noise level=-86 dBm 
Rx invalid nwid:0 Rx invalid crypt:36611 Rx invalid frag:0 
Tx excessive retries:0 Invalid misc:15 Missed beacon:2 
 
 
#iwlist eth1 scan 
 
eth1 Scan completed : 
Cell 01 - Address: 00:12:17:10:11:6C 
ESSID:"Asamjawa" 
Protocol:IEEE 802.11bg 
Mode:Master 
Channel:1 
Encryption key:on 
Bit Rates:54 Mb/s 
Extra: Rates (Mb/s): 1 2 5.5 6 9 11 12 18 24 36 48 54 
Quality=93/100 Signal level=-34 dBm 
Extra: Last beacon: 152ms ago 
 
 
 
#sudo ifup eth1 
 
Internet Systems Consortium DHCP Client V3.0.3 
Copyright 2004-2005 Internet Systems Consortium. 
All rights reserved. 
For info, please visit [http://www.isc.org/products/DHCP](http://www.isc.org/products/DHCP) 
 
Listening on LPF/eth1/00:12:f0:59:1d:45 
Sending on LPF/eth1/00:12:f0:59:1d:45 
Sending on Socket/fallback 
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 6 
*DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 8 
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 17 
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 17 
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 9 
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 4 
No DHCPOFFERS received. 
No working leases in persistent database - sleeping. 
 
 
Notez que si je fais à nouveau un iwconfig j'obtiens : 
 
# iwconfig eth1 
eth1 IEEE 802.11g ESSID:"Asamjawa" 
Mode:Managed Frequency:2.412 GHz Access Point: 00:12:17:10:11:6C 
Bit Rate=54 Mb/s Tx-Power=20 dBm Sensitivity=8/0 
Retry limit:7 RTS thr:off Fragment thr:off 
Encryption key:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx Security mode:open 
Power Management:off 
Link Quality=89/100 Signal level=-34 dBm Noise level=-87 dBm 
Rx invalid nwid:0 Rx invalid crypt:36730 Rx invalid frag:0 
Tx excessive retries:0 Invalid misc:31 Missed beacon:4 
 
 
Si quelqu'un a une idée pour m'aider. 
 
Merci 
 
Laurent.
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