View Full Version : [ubuntu] Ubuntu 8.04-Access point-problem.

January 18th, 2009, 10:11 PM
Hi everyone!
I have ubuntu 8.04,my wireless device is:Atheros 242x....
from lspci:

03:00.0 Ethernet controller: Atheros Communications Inc. AR242x 802.11abg Wireless PCI Express Adapter (rev 01)
I have internet connection from dhcp.
output from ifconfig eth0:

eth0 Link encap:Ethernet HWaddr 78:35:7f:68:1e:00
inet addr: Bcast: Mask:
inet6 addr: fe80::7a35:7fff:fe68:1e00/64 Scope:Link
RX packets:33786 errors:0 dropped:0 overruns:0 frame:0
TX packets:30170 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:42188542 (40.2 MB) TX bytes:3778710 (3.6 MB)
Interrupt:18 Base address:0x6000
iwconfig showing:

lo no wireless extensions.

eth0 no wireless extensions.

wifi0 no wireless extensions.

ath0 IEEE 802.11g ESSID:"szatan11" Nickname:""
Mode:Master Frequency:2.447 GHz Access Point: 06:1F:E2:A7:E5:C2
Bit Rate:0 kb/s Tx-Power:16 dBm Sensitivity=1/1
Retry:off RTS thr:off Fragment thr:off
Power Management:off
Link Quality=0/70 Signal level=-96 dBm Noise level=-96 dBm
Rx invalid nwid:21257 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

And i would like to set up access point on my system.

I try to set up like this:
1.Destroy the old settings:

wlanconfig ath0 destroy
2.set the essid:

iwconfig ath0 essid something

iwconfig ath0 channel 8
4.and up the interface:

ifconfig ath0 netmask up

5.This is all about ath0;
6.Now I must set the NAT arrays so:
6.1.clear the arrays:

iptables -F -t nat

iptables -X -t nat

iptables -F -t filter

iptables -X -t filter
6.2.We don't want to forwarding the packets so:

iptables -t filter -P FORWARD DROP

iptables -t filter -A FORWARD -s -d 0/0 -j ACCEPT

iptables -t filter -A FORWARD -s 0/0 -d -j ACCEPT

6.4.and :
iptables -t nat -A POSTROUTING -s -d 0/0 -j MASQUERADE

7.Now I would like to connect to AP from other pc(with Windows Vista)
and i have the Limited connection.I see my computer(with AP) but i have not internet....

If you don't now how to help me.I will be very happy if you give my any good "HowTo" if you have.