O resultado do iwconfig é:
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 no wireless extensions.
sit0 no wireless extensions.
Pesquisando na Internet encontrei uma lista de comandos. Criei um script bash.
#!/bin/sh
sudo wlanctl-ng wlan0 lnxreq_ifstate ifstate=enable
sudo wlanctl-ng wlan0 lnxreq_autojoin ssid="alan_michel" authtype=opensystem
sudo iwconfig
sudo dhclient wlan0
quando executo o script pela primeira vez acontece o seguinte:
message=lnxreq_ifstate
ifstate=enable
resultcode=implementation_failure
wlanctl-ng: No such device
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 no wireless extensions.
sit0 no wireless extensions.
Internet Systems Consortium DHCP Client V3.0.2
Copyright 2004 Internet Systems Consortium.
All rights reserved.
For info, please visit
http://www.isc.org/products/DHCPsit0: unknown hardware address type 776
SIOCSIFFLAGS: No such device
SIOCSIFFLAGS: No such device
sit0: unknown hardware address type 776
Listening on LPF/wlan0/00:00:00:00:00:00
Sending on LPF/wlan0/00:00:00:00:00:00
Sending on Socket/fallback
DHCPREQUEST on wlan0 to 255.255.255.255 port 67
send_packet: Network is down
receive_packet failed on wlan0: Network is down
DHCPREQUEST on wlan0 to 255.255.255.255 port 67
send_packet: Network is down
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 6
send_packet: Network is down
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 16
send_packet: Network is down
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 21
send_packet: Network is down
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 18
send_packet: Network is down
No DHCPOFFERS received.
Trying recorded lease 10.10.0.2
SIOCSIFFLAGS: No such device
connect: Network is unreachable
SIOCSIFFLAGS: No such device
No working leases in persistent database - sleeping.
Quando eu executo novamente o script a rede wireless funciona perfeitamente:
message=lnxreq_ifstate
ifstate=enable
resultcode=success
message=lnxreq_autojoin
ssid='alan_michel'
authtype=opensystem
resultcode=success
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11-DS ESSID:"alan_michel" Nickname:"alan_michel"
Mode:Managed Frequency:2.432 GHz Access Point: 00:0D:88:9A:8F:26
Bit Rate:2 Mb/s Tx-Power:2346 dBm
Retry min limit:8 RTS thr:off Fragment thr:off
Encryption key:off
Link Quality=36/92 Signal level=-49 dBm Noise level=-85 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
sit0 no wireless extensions.
There is already a pid file /var/run/dhclient.pid with pid 7437
killed old client process, removed PID file
Internet Systems Consortium DHCP Client V3.0.2
Copyright 2004 Internet Systems Consortium.
All rights reserved.
For info, please visit
http://www.isc.org/products/DHCPsit0: unknown hardware address type 776
sit0: unknown hardware address type 776
Listening on LPF/wlan0/00:0a:e9:01:ec:71
Sending on LPF/wlan0/00:0a:e9:01:ec:71
Sending on Socket/fallback
DHCPREQUEST on wlan0 to 255.255.255.255 port 67
DHCPACK from 10.10.0.254
bound to 10.10.0.2 -- renewal in 260911 seconds.
O fato é que não sei bem o que estou fazendo. Segui o script e funcionou.
Gostaria de entender e deixar a rede funcionando assim que der o boot.
Você pode me ajudar ?
[]s