Internetaccess via adsl 
Wednesday, June 20, 2007, 22:52 - Network
Posted by Administrator
apt-get install pptp-linux

i got a usb networkcard - to name it adsl i use udev and made /etc/udev/rules.d/local.rules


SUBSYSTEMS=="usb", KERNEL=="eth*", ATTRS{idVendor}=="050d", \
                                   ATTRS{idProduct}=="0121", \
                                   NAME="adsl"

/etc/network/interfaces
auto lo adsl lan dlanusb0 ppp0

iface lo inet loopback

iface adsl inet static
        address 10.0.0.140
        netmask 255.255.255.0
        network 10.0.0.0
        broadcast 10.0.0.255
        up /etc/network/firewall

iface ppp0 inet ppp
        provider adsl_provider

iface lan inet static
        address 192.168.0.254
        netmask 255.255.255.0
        network 192.168.0.0
        broadcast 192.168.0.255

iface dlanusb0 inet static
        address 192.168.1.254
        netmask 255.255.255.0
        network 192.168.1.0
        broadcast 192.168.1.255

/etc/network/firewall defines table ppp-forward:
iptables -N ppp-forward
iptables -A FORWARD -j ppp-forward

add USERNAME to /etc/ppp/chap-secrets

/etc/ppp/peers/adsl_provider

user USERNAME@PROVIDER
noauth
noipdefault
defaultroute
debug
persist
maxfail 0
holdoff 30
connect "while ! ping -c 1 10.0.0.138>/dev/null; do sleep 5; done "
pty "/usr/sbin/pptp 10.0.0.138 --nolaunchpppd --nobuffer"

/etc/ppp/ip-up.d/firewall

#!/bin/sh

OUTSIDE_DEV=$PPP_IFACE
ADSL_DEV=adsl
INSIDE_DEV=lan
INSIDE_DEV2=dlanusb0
OUTSIDE_IP=$PPP_LOCAL
GOOD_ADDR=192.168.0.0/24
GOOD_ADDR2=192.168.1.0/24

iptables -t nat -A POSTROUTING -s $GOOD_ADDR -o $OUTSIDE_DEV -j SNAT --to $OUTSIDE_IP
iptables -t nat -A POSTROUTING -s $GOOD_ADDR2 -o $OUTSIDE_DEV -j SNAT --to $OUTSIDE_IP
iptables -A ppp-forward -s $GOOD_ADDR -i $INSIDE_DEV -o $OUTSIDE_DEV -j good-bad
iptables -A ppp-forward -s $GOOD_ADDR2 -i $INSIDE_DEV2 -o $OUTSIDE_DEV -j good-bad
iptables -A ppp-forward -i $OUTSIDE_DEV -o $INSIDE_DEV -j bad-good

/etc/ppp/ip-down.d/firewall

#!/bin/sh

OUTSIDE_DEV=$PPP_IFACE
ADSL_DEV=adsl
INSIDE_DEV=lan
INSIDE_DEV2=dlanusb0
OUTSIDE_IP=$PPP_LOCAL
GOOD_ADDR=192.168.0.0/24

iptables -t nat -D POSTROUTING -s $GOOD_ADDR -o $OUTSIDE_DEV -j SNAT --to $OUTSIDE_IP
iptables -D ppp-forward -s $GOOD_ADDR -i $INSIDE_DEV -o $OUTSIDE_DEV -j good-bad
iptables -D ppp-forward -i $OUTSIDE_DEV -o $INSIDE_DEV -j bad-good



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dnsmasq 
Wednesday, June 20, 2007, 22:50 - Network
Posted by Administrator
dnsmasq with more than one interface

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