Dotaz: ifup(down) ath0

[@pretorian]

Zdravim, pokousim se nastavit wifi sit, ta nekdy funguje, nekdy ne. Prvotni problem asi je asi v tomto :

pejsanek:/etc/network# ifdown ath0
ifdown: interface ath0 not configured
pejsanek:/etc/network# ifup ath0
SIOCADDRT: Network is unreachable
Failed to bring up ath0.

Zde je konfiguracni soubor site :

pejsanek:/etc/network# cat interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
auto eth1 ath0
iface eth1 inet static
        address 192.168.1.13
        netmask 255.255.255.0
        network 192.168.1.0
        broadcast 192.168.1.255
        gateway 192.168.1.1
        # dns-* options are implemented by the resolvconf package, if installed
        dns-nameservers 192.168.1.1

iface ath0 inet static
        address 192.168.0.1
        netmask 255.255.255.0
        broadcast 192.168.0.255
        gateway 192.168.1.1
        # dns-* options are implemented by the resolvconf package, if installed
        dns-nameservers 192.168.1.1

Pouzivam Debian sid. Da se snad nastavit sit jeste nekde jinde, aby to takto nezlobilo? Nebo alespon, jak mam vyresit ten problem, co zde popisuji...

Odpovědi

[Michal Čihař]

No ještě bych k tomu ath0 přidal nastavení wifi, takže něco jako (pro klienta):

    wireless_essid CZFree.Net
    wireless_mode managed

Nebo (pokud to má být access point):

    wireless_essid CZFree.Net
    wireless_mode master
    wireless_channel 1

[Jiří Svoboda]

A neni jen problem v tom, ze je u adapteru ath0 nesmyslne uvedena gateway 192.168.1.1? Ta prvni cast hlasky (SIOCADDRT: Network is unreachable) je totiz typicka, kdyz se pomoci route pokousite nastavit routu/gateway na IP, ktera neni v zadnem z primo dostupnych subnetu (tzn. ve vasem pripade nejede eth0). Dalsi radek uz muze byt treba jen nasledek (nevim, scripty Debianu neznam)...
BTW, ath0, co to je za adapter? Ja to znam jen jako prikaz na zaveseni modemu.

[@pretorian]

Tu gateway jsem jiz opravil na 192.168.0.1 u ath0 (ath0 - tak to jsi pojmenovali Atheros ovladace ten interface). Pridal jsme tam i to nastaveni pro wifi-AP, ale stejnak to stale nejde.

[@pretorian]

Takto to funguje.

pejsanek:/etc/init.d# cat /etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface

auto eth1 ath0 eth0
iface eth1 inet static
        address 192.168.1.13
        netmask 255.255.255.0
        network 192.168.1.0
        broadcast 192.168.1.255
        gateway 192.168.1.1
        # dns-* options are implemented by the resolvconf package, if installed
        dns-nameservers 192.168.1.1

iface eth0 inet static
        address 192.168.0.3
        netmask 255.255.255.0
        network 192.168.0.0
        broadcast 192.168.0.255
        # gateway 192.168.0.1
        # dns-* options are implemented by the resolvconf package, if installed
        dns-nameservers 192.168.1.1

iface ath0 inet static
        address 192.168.0.1
        netmask 255.255.255.0
        network 192.168.0.0
        broadcast 192.168.0.255
        # gateway 192.168.0.1
        # dns-* options are implemented by the resolvconf package, if installed
        dns-nameservers 192.168.1.1
        wireless_essid WLAN
        wireless_mode master
        wireless_channel 1

[@pretorian]

Probelm vyresen, uz jsem schopen ifup a ifdown ath0. Nyni teda k samotnemu propojeni notebooku, kde mam 11/54Mbit a ovladac ndiswrapper ....

iwconfig wlan0 (notebook)
IEEE 802.11g
ESSID : WLAN
nickname : bafik
mode : Ad-Hoc
Frequency : 2.412GHz
Bit Rate = 11Mb/s
atd....

a pocitac s Micronet wifi 11/54/108mbit s atheros driverama

iwconfig ath0 (PC)
ath0      IEEE 802.11g  ESSID:"WLAN"  Nickname:"nafik"
         Mode:Ad-Hoc  Frequency:2.412 GHz  Cell: 02:0F:A3:11:0D:8F
         Bit Rate=54 Mb/s   Tx-Power:50 dBm   Sensitivity=0/3
         Retry:off   RTS thr:off   Fragment thr:off
         Encryption key:off
         Power Management:off
         Link Quality=0/94  Signal level=-95 dBm  Noise level=-95 dBm
         Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
         Tx excessive retries:2  Invalid misc:2   Missed beacon:0

S tim ze link quality u PC kazdou vterinu leze z 0procent na 46-50procent a zase zpet..

[Jiri Bajer]

A neni to tim, ze adhoc mod v ovladaci madwifi ma pry problemy se stabilitou/kvalitou? Nekde jsem to cetl... Zkus si to nastavit jako AP, treba se to zlepsi.