3/30    I've got a friend who'd like to config a Linux machine to act as a
        a gateway so that their home network can share a DSL line -- I've
        never done this (and obviously they haven't, since they're asking
        me) . . . any good FAQ's I can point them to for advice?

3/30
 _   _    _    ____  ______   __  ____ ___ ____ _____ _   _ ____    _ __   __
| | | |  / \  |  _ \|  _ \ \ / / | __ )_ _|  _ \_   _| | | |  _ \  / \\ \ / /
| |_| | / _ \ | |_) | |_) \ V /  |  _ \| || |_) || | | |_| | | | |/ _ \\ V /
|  _  |/ ___ \|  __/|  __/ | |   | |_) | ||  _ < | | |  _  | |_| / ___ \| |_
        \_ A friend of mine uses ip masquerading. here's an email blurb:
           >lines added to the end of file /etc/rc.d/rc.local.
           >
           >echo "ip_masq 192.128.1.1"
           >echo "1" > /proc/sys/net/ipv4/ip_forward
           >/sbin/depmod -a
           >/sbin/modprobe ip_masq_ftp.o
           >/sbin/modprobe ip_masq_raudio.o
           >/sbin/modprobe ip_irc.o
           >/sbin/ipfwadm -F -p deny
           >/sbin/ipfwadm -F -a m -S192.168.1.0/24 -D0.0.0.0/0
           >/sbin/ifconfig eth1 192.168.1.1
           >/sbin/route add -net 192.168.1.0
           >-----------------------------------------
           >
           >also you have to set up the linux machine
           >as a gateway in tcpip settings in w95
           I'm not exactly sure what each line does. Don't forget to compile
           IP Masquerading into the kernel.
           \_ This is for Linux 2.0.x, which is what the latest Redhat
              distrib ships with.  You should really upgrade to 2.2.5 (it's
              \_ oh shit, i didn't know they were up to 2.2.5 already. it
                 was only a month ago when people were boasting about 2.2.2
                 \_ As you wrote this, three newer versions were relased.  By
                    the time you finish reading this sentence, they'll be at
                    version 6.2.7.8 (or so - depends on your reading speed).
              pathetically easy), and use the ipchains stuff below.  Better
              yet, use FreeBSD --dbushong
        \_ natd
           \_ That's for FreeBSD.  On a modern Linux box, use ipchains:
              ipchains -A forward -s 10.42.42.0/24 -d 0/0 -j MASQ
              (where 10.42.42.0 is your internal subnet).  You probably
              also want to add the built in proxies for things that doesn't
              cover:
              insmod ip_masq_cuseeme

3/30
 _   _    _    ____  ______   __  ____ ___ ____ _____ _   _ ____    _ __   __
| | | |  / \  |  _ \|  _ \ \ / / | __ )_ _|  _ \_   _| | | |  _ \  / \\ \ / /
| |_| | / _ \ | |_) | |_) \ V /  |  _ \| || |_) || | | |_| | | | |/ _ \\ V /
|  _  |/ ___ \|  __/|  __/ | |   | |_) | ||  _ < | | |  _  | |_| / ___ \| |_
|_| |_/_/   \_\_|   |_|    |_|   |____/___|_| \_\|_| |_| |_|____/_/   \_\_( )
                                                                          |/
         _____ __  __  ___  _   _ ____   ___  _____
        |_   _|  \/  |/ _ \| \ | |  _ \ / _ \| ____|
          | | | |\/| | | | |  \| | |_) | | | |  _|
          | | | |  | | |_| | |\  |  _ <| |_| | |___
          |_| |_|  |_|\___/|_| \_|_| \_\\___/|_____|
              insmod ip_masq_ftp
              insmod ip_masq_irc
              insmod ip_masq_raudio                 --dbushong