;       EXAMPLE ROUTER CONFIGURATION USING PPP (DYNAMIC)
;
;   IPR script for example configuration with PPP
;   using a dynamically negotiated IP address.
;

;         set log none
;         set log file out.txt
         set log file CON
         set log raw on
;         set log headers
;         set log monitor on
         set trace off

;   Configure ethernet interface on network 192.168.0.0/24
	packet en0 0x60 192.168.0.1/24
;   Configure the modem port (COM2, in this case) and make it the default route
	async sl0 0x2f8 3 57600 do_sl0
        set ppp sl0 trace on
        route * sl0 perm
;   Broadcast RIP routes on the ethernet
	rip en0
;   Start a command interpreter on the console
	command
	exit

;
;   Script for filter and NAT configuration on sl0,
;   with demand dial out, etc.
;
do_sl0:
	set trace on
;
;   Set up NAT
;
;   Allow all outgoing service requests and their responses.
;   The IP address is not critical, but should be the most
;   likely address (or at least a possible address).
;   This is the real trick: all outgoing traffic from the machines on
;   the LAN seems to come from just one machine (namely the IPRouter),
;   with the following line:

	nat * * 145.220.128.13

;   The following line makes sure that all incoming traffic to 'well-known' 
;   ports will be forwarded to one particular machine, namely 192.168.0.2.
;   This could be handy if you are running a webserver or an FTP server on 
;   that machine. The problem though is that your ISP gives you a 'dynamic 
;   IP address', which means you get a different address each time you 
;   connect. This makes it difficult for other people to connect to your site.
;   However, if you really really want people to access your servers when you
;   login to your provider, there is a solution. There are now 
;   organizations which can provide you with a fixed alphanumeric Internet 
;   name which points to whatever dynamic IP address you happen to be using 
;   when you login (a special client on your machine updates the information).
;   These organizations are e.g. http://www.ml.org (free; check out the
;   dynamic DNS service) and http://www.dyndns.com (fee).
;     This line might also be useful if you want to play games over the Internet
;   and you don't know which TCP/UDP port the game is using. With this line
;   you tell IPRoute that want one single machine to provide all ports for
;   incoming connections. One (or more) of them is used by the game. That
;   should do it... :-)   If you don't want this (e.g. for security reasons),
;   delete the line.
	nat * 192.168.0.2 145.220.128.13

;   Configure modem control and set up for demand dial.
;
	set interface rts flow
hangup:
	set interface dtr off
	delay .5
	set interface dtr on

; Filter out some crazy Windows95 DNS packets (which cause IPRoute to dial
; out otherwise)
        filter sl0 drop out udp *:137 *:53
        filter sl0 permit out * * *
        filter en0 permit in * * *

	on packet dialout
	wait 0

;   Dial the phone, log in, and run PPP.
;   Hang up if no packets are received for 600 seconds.
;
dialout:
;   Drop the Windows 95 filters again to allow NetBIOS over TCP/IP.
;   Remove this line if you notice that IPRoute doesn't hangup when it should.
        drop filter en0
;   Change this to the phone number of your ISP.
	send "ATDT0206444818\r"
	wait 1
	on timeout hangup
	wait 45 "CONNECT"
;   Read the rest of the CONNECT message into symbol "speed".
	on cd lineup
	read 5 "\r" speed
	wait 60
lineup: on cdloss hangup
	on timeout hangup
	log "Connected at $speed"
;   Change the following if the login dialog with your ISP is different!
	send "\r\r"
	wait 5 "name:"
	send "youruserid\r"
	wait 5 "word:"
	send "yourpassword\r"
	set ppp login youruserid yourpassword
	ppp 600 * dynamic-nat
	goto hangup