Re: [SLUG] NAT

From: Derek Glidden (dglidden@illusionary.com)
Date: Wed Jan 09 2002 - 13:30:46 EST


On Tue, 2002-01-08 at 23:08, Russell Hires wrote:
> Help...
>
> I want to use my linux machine as a firewall. I also want to do Network
> Address Translation (I've got a couple of PC's I want to have access to the
> internet). I've got DSL, though, which throws a wrench into things. I've got
> eth1 connected to an ethernet hub, and technically, eth0 is connected to the
> outside world. But my external assigned internet address is actually on ppp0;
> eth0 doesn't have an ip address. I've got a 2.4.17 kernel, so I know I'll be
> using iptables.
>
> Can anyone help?

Err, what are you trying to do exactly?

You can pretty much do what you would do if you had "eth0" and "eth1"
except replace the appropriate one with "ppp0".

Where are you having problems?

-- 
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
#!/usr/bin/perl -w
$_='while(read+STDIN,$_,2048){$a=29;$b=73;$c=142;$t=255;@t=map
{$_%16or$t^=$c^=($m=(11,10,116,100,11,122,20,100)[$_/16%8])&110;
$t^=(72,@z=(64,72,$a^=12*($_%16-2?0:$m&17)),$b^=$_%64?12:0,@z)
[$_%8]}(16..271);if((@a=unx"C*",$_)[20]&48){$h=5;$_=unxb24,join
"",@b=map{xB8,unxb8,chr($_^$a[--$h+84])}@ARGV;s/...$/1$&/;$d=
unxV,xb25,$_;$e=256|(ord$b[4])<<9|ord$b[3];$d=$d>>8^($f=$t&($d
>>12^$d>>4^$d^$d/8))<<17,$e=$e>>8^($t&($g=($q=$e>>14&7^$e)^$q*
8^$q<<6))<<9,$_=$t[$_]^(($h>>=8)+=$f+(~$g&$t))for@a[128..$#a]}
print+x"C*",@a}';s/x/pack+/g;eval 

usage: qrpff 153 2 8 105 225 < /mnt/dvd/VOB_FILENAME \ | extract_mpeg2 | mpeg2dec -

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