Help! I want to create a SoftAP w/ Internet Connection.

English Network/Internet
1

I plan to turn my Laptop into an Access Point with www access, but it just won’t work! :’(

Here are my config-files…

/etc/hostapd.conf

interface=wlan0
#bridge=br0
driver=nl80211
hw_mode=g
channel=6
ssid=AR5008

I want an unencrypted connection! Everybody can connect to my AP :shame:

/etc/dhcpd.conf

option domain-name-servers 192.168.1.1;
default-lease-time 600;
max-lease-time 7200;
ddns-update-style none; ddns-updates off;
subnet 192.168.0.0 netmask 255.255.255.0 {
        range 192.168.0.200 192.168.0.229;
        option subnet-mask 255.255.255.0;
        option broadcast-address 192.168.0.255;
        #option routers 192.168.0.1;
        option routers 10.0.0.138;
}

And here is the script I’m using to activate the SoftAP:

#!/bin/sh
# Script to start/stop a hostapd-based access point
#
# Symbols for needed programs

IPTABLES=/usr/sbin/iptables
IFCONFIG=/sbin/ifconfig
DHCPD=/usr/sbin/dhcpd
HOSTAPD=/usr/sbin/hostapd

# Symbols for internal and external interfaces

NET_INT=wlan0
NET_EXT=dsl0

# IP address for the AP

INT_ADDR=192.168.0.1

case "$1" in
start)
        echo "Starting AP mode for $NET_INT at address $INT_ADDR"
        # Disable packet forwarding
        echo 0 > /proc/sys/net/ipv4/ip_forward
        # Stop any existing hostapd and dhcpd daemons
        killproc hostapd
        killproc dhcpd
        #Set up forwarding
        $IPTABLES -t nat -A POSTROUTING -o $NET_EXT -j MASQUERADE
        $IPTABLES -A FORWARD -i $NET_EXT -o $NET_INT -m state \
		--state RELATED,ESTABLISHED -j ACCEPT
        $IPTABLES -A FORWARD -i $NET_INT -o $NET_EXT -j ACCEPT
        # Enable packet forwarding
        echo 1 > /proc/sys/net/ipv4/ip_forward
        # Get the internal interface in the right state
        $IFCONFIG $NET_INT down
        $IFCONFIG $NET_INT up
        $IFCONFIG $NET_INT $INT_ADDR
        # dhcpd needs to have a leases file available - create it if needed
        if  ! -f /var/lib/dhcp/db/dhcpd.leases ]; then
                touch /var/lib/dhcp/db/dhcpd.leases
        fi
        # Bring up the DHCP server
        $DHCPD -cf /root/dhcpd.conf $NET_INT
        # Bring up hostapd
        $HOSTAPD -B /root/hostapd.conf
        ;;
stop)
        echo "Stopping AP mode on $NET_INT"
        # Stop hostapd and dhcpd daemons
        killproc hostapd
        killproc dhcpd
        ;;
*)
        echo "Usage: $0 {start|stop}"
        exit 1
        ;;
esac

I found this script here: http://forums.opensuse.org/english/get-help-here/wireless/410475-how-setup-access-point.html

The AP works, but I only can browse Samba Shares from other devices, they don’t have Internet Access >:(
Example: I have an Archos 101 G9 Turbo, from this device I can access all my Samba Shared, works 100%, but if I open a browser, endless loading (5 min.) than an error that there is no internet connection.

I tried to create a bridge:

brctl addbr br0
brctl addif br0 wlan0
brctl addif br0 dsl0
can't add dsl0 to bridge br0: Invalid argument

Here is the main problem, if I add eth0 to the bridge, my laptop losses the internet connection, because I only can connect via dsl0 interface to the internet.
I have to remove the bridge completely to get back my internet connection, if eth0 is in the bridge.

I have an Alcatel (Thomson) SpeedTouch 510 DSL modem
The provider is AON (AonSpeed/Austria) | Yes, I live in Austria.
The only Linux distro that seems to support this type of modem is openSUSE.
The only program that can connect to the modem is KInternet from the KDE3 desktop

I’m confused!

Here are some system specs:

WLAN: AR5008 Wireless Network Adapter by Atheros Communications Inc.
LAN: 88E8040T PCI-E Fast Ethernet Controller by Marvell Technology Group Ltd.

Btw, the script creates an interface: mon.wlan0 (Wired)
wlan0 is Wireless.

Here are some details of the modem:

IP: 10.0.0.138
Gateway: 10.0.0.140
PPP Mode: Point to Point Tunneling Protocol

Basic Information
Region: Austria
Provider: Telekom Austria AG
Service Name: Broadband Access
Service Description: Austria

IP address table
eth0   10.0.0.13/24    Type: Extra
loop   127.0.0.1/8     Type: Auto

IP route table
	10.0.0.0/24 		10.0.0.0/24 		10.0.0.138 		eth0
	255.255.255.255/32 		any 		10.0.0.138 		eth0
	10.0.0.138/32 		any 		10.0.0.138 		eth0
	127.0.0.1/32 		any 		127.0.0.1 		loop
	10.0.0.0/24 		any 		10.0.0.138 		eth0
	224.0.0.0/4 		any 		10.0.0.138* 		eth0
	default 		any 		not specified* 		DIALUP_PPP1
	default 		any 		10.0.0.138* 		eth0

Is there any hope for me to create an SoftAP w/ Internet Connection?
Or is my plan ********** :mad:

I really need help!

2

Hello
Although I haven’t tried to set up exactly what you’re doing on general principles IMO you shouldn’t be setting up your openSUSE as a bridging device… It should be set up as a router since your external and internal networks use different network IDs.

HTH
TS

3

and how to do that?
i don’t have any plan

the ap works but it is a local network
how to enable internet on the ap

i messed around with firewall settings but it didn’t worked, still no internet access
and i actually won’t have a bridge

4

SOLVED!!! ;):P:P

My SoftAP has finally internet access.

I changed the domain-name-servers to my provider
**
dhcpd.conf**

option domain-name-servers 195.3.96.67, 195.3.96.68;
default-lease-time 600;
max-lease-time 7200;
ddns-update-style none; ddns-updates off;
subnet 192.168.0.0 netmask 255.255.255.0 {
        range 192.168.0.200 192.168.0.229;
        option subnet-mask 255.255.255.0;
        option broadcast-address 192.168.0.255;
        option routers 192.168.0.1;
}

195.3.96.67 and 68 are the server of the Telekom Austria (AonSpeed)
**
hostapd.conf**

interface=wlan0
#bridge=br0
driver=nl80211
hw_mode=g
channel=1
ssid=AR5008

and the script

#!/bin/sh
# Script to start/stop a hostapd-based access point
#
# Symbols for needed programs

IPTABLES=/usr/sbin/iptables
IFCONFIG=/sbin/ifconfig
DHCPD=/usr/sbin/dhcpd
HOSTAPD=/usr/sbin/hostapd

# Symbols for internal and external interfaces

NET_INT=wlan0
NET_EXT=dsl0

# IP address for the AP

INT_ADDR=192.168.0.1

case "$1" in
start)
        echo "Starting AP mode for $NET_INT at address $INT_ADDR"
        # Disable packet forwarding
        echo 0 > /proc/sys/net/ipv4/ip_forward
        # Stop any existing hostapd and dhcpd daemons
        killproc hostapd
        killproc dhcpd
        #Set up forwarding
        $IPTABLES -t nat -A POSTROUTING -o $NET_EXT -j MASQUERADE
        $IPTABLES -A FORWARD -i $NET_EXT -o $NET_INT -m state \
		--state RELATED,ESTABLISHED -j ACCEPT
        $IPTABLES -A FORWARD -i $NET_INT -o $NET_EXT -j ACCEPT
        # Enable packet forwarding
        echo 1 > /proc/sys/net/ipv4/ip_forward
        # Get the internal interface in the right state
        $IFCONFIG $NET_INT down
        $IFCONFIG $NET_INT up
        $IFCONFIG $NET_INT $INT_ADDR
        # dhcpd needs to have a leases file available - create it if needed
        if  ! -f /var/lib/dhcp/db/dhcpd.leases ]; then
                touch /var/lib/dhcp/db/dhcpd.leases
        fi
        # Bring up the DHCP server
        $DHCPD -cf /root/dhcpd.conf $NET_INT
        # Bring up hostapd
        $HOSTAPD -B /root/hostapd.conf
        ;;
stop)
        echo "Stopping AP mode on $NET_INT"
        # Stop hostapd and dhcpd daemons
        killproc hostapd
        killproc dhcpd
        ;;
*)
        echo "Usage: $0 {start|stop}"
        exit 1
        ;;
esac

everything works, the samba shares are accessible and internet works

my laptop is now an 100% working WiFi-Hotspot

i’m happy now

solved the problem by myself without any help :wink:

5

Congrats!

TS

6

@ SoftHacker
thanks a lot for the above. it helped in sharing my DSL Connection with my Android phone. but one issue persists- i am unable to terminate the connection with the phone after use. is there some command to disable wireless? or should i use another script file?

7

Speculating,
You could ifdown/ifup your wireless connection
or
use rfkill

HtH,
TS

8

@ tsu2,
thanks for your reply. so, should the command be “sudo ifdown wlan0” or “sudo rfkill wlan0”? Am I right?