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alegioit
Tux's lil' helper
Joined: 13 Jul 2007
Posts: 78
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 Posted: Wed Jan 06, 2010 1:39 pm Post subject: connessione wireless ad-hoc non funzionante... |
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ciao a tutti di nuovo  .
Come qualcuno già saprà sto reinstallando gentoo sul mio serverino domestico... ho un problema con le icone ma posso non farci caso. Vorrei però far fungere il serverino anche da router.
Dopo aver provato varie schede wireless (di cui per nessuna vi è il supporto in linux per il modo master o ad-hoc) ho trovato una "RaLink RT2561/RT61 rev B 802.11g" che sembra funzionare bene anche in ad-hoc mode.
Il problema è che sembra tutto funzionare ( i due client si vedono e si agganciano ), ma non si scambiano pacchetti!
Non sto utilizzando il dhcp per comodità, quindi gli sto assegnando un indirizzo fisso... spero di star facendo casini!
L'interfaccia è un ed è funzionante, almeno credo!
Sto utilizzando la crttografia wep, ho provato anche a toglierla, ma il problema persiste!
Naturalmente ho iptables attivo, ma dovrei averso settato giusto e disattivandolo continuano a non pingarsi i computer.
less /etc/conf.d/net
| Code: |
#rete lan
config_eth1="dhcp"
modules_eth1="dhclient"
config_eth0="192.168.0.1/24 broadcast 192.168.0.255"
#rete wifi
config_wlan0="192.168.100.1 netmask 255.255.255.252 broadcast 192.168.100.3"
mode_wlan0="ad-hoc"
essid_wlan0="xxxxxxxxxx"
channel_wlan0="2"
key_irkwik="xxxxxxxxxxxxxxxxxx"
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L'altro pc (su cui gira xp) ha indirizzo 192.168.0.2 netmask 255.255.255.252 bc 192.168.0.3
dmesg
| Code: |
#############DA QUI HO ATTIVATO L'INTARFACCIA###############
[92851.926028] phy0 -> rt2x00mac_conf_tx: Info - Configured TX queue 0 - CWmin: 2, CWmax: 3, Aifs: 2, TXop: 47.
[92851.926039] phy0 -> rt2x00mac_conf_tx: Info - Configured TX queue 1 - CWmin: 3, CWmax: 4, Aifs: 2, TXop: 94.
[92851.926048] phy0 -> rt2x00mac_conf_tx: Info - Configured TX queue 2 - CWmin: 4, CWmax: 10, Aifs: 3, TXop: 0.
[92851.926058] phy0 -> rt2x00mac_conf_tx: Info - Configured TX queue 3 - CWmin: 4, CWmax: 10, Aifs: 7, TXop: 0.
[92852.049059] phy0: device no longer idle - in use
[92852.049079] wlan0: sta_find_ibss (active_ibss=0)
[92852.049083] sta_find_ibss: selected 1e:38:90:96:22:56 current 00:00:00:00:00:00
[92852.049085] wlan0: Selected IBSS BSSID 1e:38:90:96:22:56 based on configured SSID
[92852.053167] phy0 -> rt2x00mac_conf_tx: Info - Configured TX queue 0 - CWmin: 2, CWmax: 3, Aifs: 2, TXop: 47.
[92852.053174] phy0 -> rt2x00mac_conf_tx: Info - Configured TX queue 1 - CWmin: 3, CWmax: 4, Aifs: 2, TXop: 94.
[92852.053181] phy0 -> rt2x00mac_conf_tx: Info - Configured TX queue 2 - CWmin: 4, CWmax: 10, Aifs: 3, TXop: 0.
[92852.053187] phy0 -> rt2x00mac_conf_tx: Info - Configured TX queue 3 - CWmin: 4, CWmax: 10, Aifs: 7, TXop: 0.
[92862.313011] wlan0: no IPv6 routers present
[92955.332678] UDP: short packet: From 0.136.255.255:8960 13568/115 to 160.60.200.1:31488
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iwlist scanning
| Code: |
Cell 01 - Address: 1E:38:90:96:22:56
Channel:2
Frequency:2.417 GHz (Channel 2)
Quality=70/70 Signal level=0 dBm
Encryption key:on
ESSID:"xxxxxxxxxxxxx"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Ad-Hoc
Extra:tsf=000000000b4e322d
Extra: Last beacon: 573782ms ago
IE: Unknown: 000669726B77696B
IE: Unknown: 010802040B160C121824
IE: Unknown: 030102
IE: Unknown: 06020000
IE: Unknown: 32043048606C
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iwconfig wlan0
| Code: |
wlan0 IEEE 802.11bg ESSID:"xxxxxxxxxxxxxxx"
Mode:Ad-Hoc Frequency:2.417 GHz Cell: 1E:38:90:96:22:56
Tx-Power=19 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Encryption key:xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Power Management:on
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ifconfig
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wlan0 Link encap:Ethernet HWaddr 00:1c:f0:0d:ed:12
inet addr:192.168.100.1 Bcast:192.168.100.3 Mask:255.255.255.252
inet6 addr: fe80::21c:f0ff:fe0d:ed12/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:302 errors:0 dropped:0 overruns:0 frame:0
TX packets:286 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:22634 (22.1 KiB) TX bytes:46943 (45.8 KiB)
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boh, ifconfig indica che si scambiano dati, ma i due computer non scambiano nessun pacchetto quando sono collegati tra loro... non capisco
script iptables
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#!/bin/bash
#First we flush our current rules
iptables -F
iptables -t nat -F
#Setup default policies to handle unmatched traffic
iptables -P INPUT ACCEPT
iptables -P OUTPUT ACCEPT
iptables -P FORWARD DROP
#Copy and paste these examples ...
export WAN=eth1
export LAN=eth0
export WLAN=wlan0
#Then we lock our services so they only work from the LAN
iptables -I INPUT 1 -i ${LAN} -j ACCEPT
iptables -I INPUT 1 -i lo -j ACCEPT
iptables -A INPUT -p UDP --dport bootps ! -i ${LAN} -j REJECT
iptables -A INPUT -p UDP --dport domain ! -i ${LAN} -j REJECT
#(Optional) Allow access to our ssh server from the WAN
iptables -A INPUT -p TCP --dport ssh -i ${WAN} -j ACCEPT
#Drop TCP / UDP packets to privileged ports
iptables -A INPUT -p TCP ! -i ${LAN} -d 0/0 --dport 0:1023 -j DROP
iptables -A INPUT -p UDP ! -i ${LAN} -d 0/0 --dport 0:1023 -j DROP
#Finally we add the rules for NAT
iptables -I FORWARD -i ${LAN} -d 192.168.0.0/255.255.0.0 -j DROP
iptables -A FORWARD -i ${LAN} -s 192.168.0.0/255.255.0.0 -j ACCEPT
iptables -A FORWARD -i ${WAN} -d 192.168.0.0/255.255.0.0 -j ACCEPT
iptables -A FORWARD -i ${WLAN} -s 192.168.100.0/255.255.0.0 -j ACCEPT
iptables -t nat -A POSTROUTING -o ${WAN} -j MASQUERADE
#Tell the kernel that ip forwarding is OK
echo 1 > /proc/sys/net/ipv4/ip_forward
for f in /proc/sys/net/ipv4/conf/*/rp_filter ; do echo 1 > $f ; done
#Regole aMule
iptables -A INPUT -p tcp --dport 4662 -j ACCEPT
iptables -A INPUT -p udp --dport 4665 -j ACCEPT
iptables -A INPUT -p udp --dport 4672 -j ACCEPT
iptables -A INPUT -p tcp --dport 4762 -j ACCEPT
iptables -A INPUT -p udp --dport 4765 -j ACCEPT
iptables -A INPUT -p udp --dport 4772 -j ACCEPT
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alegioit
Tux's lil' helper
Joined: 13 Jul 2007
Posts: 78
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| Posted: Wed Jan 06, 2010 1:46 pm Post subject: |
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Uhm... mi sono accorto che iptables così com'era non poteva funzionare... adesso dovrebbe andare bene, ma comunque i due computer non si scambiano lo stesso nessun pacchetto....
| Code: |
#!/bin/bash
#First we flush our current rules
iptables -F
iptables -t nat -F
#Setup default policies to handle unmatched traffic
iptables -P INPUT ACCEPT
iptables -P OUTPUT ACCEPT
iptables -P FORWARD DROP
#Copy and paste these examples ...
export WAN=eth1
export LAN=eth0
export WLAN=wlan0
#Then we lock our services so they only work from the LAN
iptables -I INPUT 1 -i ${LAN} -j ACCEPT
iptables -I INPUT 1 -i lo -j ACCEPT
iptables -A INPUT -p UDP --dport bootps ! -i ${LAN} -j REJECT
iptables -A INPUT -p UDP --dport domain ! -i ${LAN} -j REJECT
#Then we lock our services so they only work from the WLAN
iptables -I INPUT 1 -i ${WLAN} -j ACCEPT
iptables -A INPUT -p UDP --dport bootps ! -i ${WLAN} -j REJECT
iptables -A INPUT -p UDP --dport domain ! -i ${WLAN} -j REJECT
#(Optional) Allow access to our ssh server from the WAN
iptables -A INPUT -p TCP --dport ssh -i ${WAN} -j ACCEPT
#Drop TCP / UDP packets to privileged ports
iptables -A INPUT -p TCP ! -i ${LAN} -d 0/0 --dport 0:1023 -j DROP
iptables -A INPUT -p UDP ! -i ${LAN} -d 0/0 --dport 0:1023 -j DROP
#Drop TCP / UDP packets to privileged ports
iptables -A INPUT -p TCP ! -i ${WLAN} -d 0/0 --dport 0:1023 -j DROP
iptables -A INPUT -p UDP ! -i ${WLAN} -d 0/0 --dport 0:1023 -j DROP
#Finally we add the rules for NAT
iptables -I FORWARD -i ${LAN} -d 192.168.0.0/255.255.0.0 -j DROP
iptables -A FORWARD -i ${LAN} -s 192.168.0.0/255.255.0.0 -j ACCEPT
iptables -I FORWARD -i ${WLAN} -d 192.168.100.0/255.255.0.0 -j DROP
iptables -A FORWARD -i ${WLAN} -s 192.168.100.0/255.255.0.0 -j ACCEPT
iptables -A FORWARD -i ${WAN} -d 192.168.0.0/255.255.0.0 -j ACCEPT
iptables -t nat -A POSTROUTING -o ${WAN} -j MASQUERADE
#Tell the kernel that ip forwarding is OK
echo 1 > /proc/sys/net/ipv4/ip_forward
for f in /proc/sys/net/ipv4/conf/*/rp_filter ; do echo 1 > $f ; done
#Regole aMule
iptables -A INPUT -p tcp --dport 4662 -j ACCEPT
iptables -A INPUT -p udp --dport 4665 -j ACCEPT
iptables -A INPUT -p udp --dport 4672 -j ACCEPT
iptables -A INPUT -p tcp --dport 4762 -j ACCEPT
iptables -A INPUT -p udp --dport 4765 -j ACCEPT
iptables -A INPUT -p udp --dport 4772 -j ACCEPT
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xdarma
l33t
Joined: 08 Dec 2003
Posts: 719
Location: tra veneto e friuli (italy)
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| Posted: Wed Jan 06, 2010 1:53 pm Post subject: Re: connessione wireless ad-hoc non funzionante... |
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| alegioit wrote: |
#rete wifi
config_wlan0="192.168.100.1 netmask 255.255.255.252 broadcast 192.168.100.3"
L'altro pc (su cui gira xp) ha indirizzo 192.168.0.2 netmask 255.255.255.252 bc 192.168.0.3
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Non c'ho capito una mazza, ma:
- forse hai bisogno di un gateway perché wlan0 del server è sulla rete 192.168.100.x mentre eth0 di xp è in 192.168.0.x;
- posta anche il risultato di: route -n
Ciao.
_________________
proud user of faKeDE-4.7.3 -> back to windowmaker -> moved to LXQt |
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alegioit
Tux's lil' helper
Joined: 13 Jul 2007
Posts: 78
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| Posted: Wed Jan 06, 2010 2:00 pm Post subject: |
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| gnem.... era lo script di iptables... con il secondo che ho scritto funziona tutto!!! |
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