RE: default route with PPP -- MIDRANGE-L

Carl,

        You can look at the IBM RedBook SG24-5190-00 to help you understand
routes on the AS/400.  

I'm no expert, and this may not help, but we went through something similar
in order to allow access to our AS/400 via the internet through a firewall.

Bascially, we found that you have to remove the default route (permanently)
and insert each network manually in the route table with it's corresponding
gateway.  Here is one of our screens for example:

                            Work with TCP/IP Routes

                                                             System:
AS0000  
 Type options, press Enter.

   1=Add   2=Change   4=Remove   5=Display

 

      Route            Subnet           Next             Preferred

 Opt  Destination      Mask             Hop              Interface

 

      64.32.0.0        255.255.0.0      128.1.0.116      *NONE

      128.0.0.0        255.255.0.0      128.1.0.1        *NONE

      196.3.0.0        255.255.0.0      128.1.0.116      *NONE

      200.50.0.0       255.255.255.0    128.1.0.116      *NONE

      208.169.0.0      255.255.0.0      128.1.0.116      *NONE

 
Bottom 
 F3=Exit      F5=Refresh   F6=Print list   F11=Display type of service

 F12=Cancel   F17=Top      F18=Bottom

 

Our internal Lan uses 128.1.0.1 as the gateway, the remaining IP
addresses/networks use the 128.1.0.116 firewall/router.  The only
disadvantage is that each Route Destination network has to be entered
manually (this will be a minor headache for us as we may have many ISP
networks to deal with).   This may not be a big deal for you since it seems
that you have a fixed server list you are communicating with.

Hope this helps,


Jose Amable Rodriguez
Dominican Knits, S.A. (GrupoM)
(809) 575 - 2121 x 3253
jarodriguez@grupom.com.do

-----Original Message-----
From: Carl Galgano [mailto:cgalgano2@ediconsulting.com]
Sent: Thursday, June 21, 2001 12:37 PM
To: Midrange List
Subject: default route with PPP


I am developing some code for a client.  Basically the code will attempt to
FTP to a site on the internet over the company's existing T1.  I ping the
FTP server first to see if the route is there.  If I can not get a return on
my ping I want to start a PPP dial up connection to an ISP, and then do the
FTP over the dial up line.

All the pieces work fine, except one.  In my PPP profile I have set that the
dial up connection gets assigned the default route.  If I currently have a
default route set up in my routing table, the PPP connection will not work,
it says there is already a default route set up.  If I remove the default
route on the AS400, the PPP connection works fine and the data is routed
over the dial up to the internet.  All of my customer's systems already have
a default route set up on their AS400 pointing to the local router so the
data is moved over their WAN.  The only way I see to solve this problem is
to programmatically remove the default route in the routing table, start my
PTP PPP connection, do my FTP, end the PPP connection and then
programmatically add the default route entry back to the AS400.  This seems
less than elegant.  Any better ideas?
cjg


Carl J. Galgano
EDI Consulting Services, Inc.
550 Kennesaw Avenue, Suite 800
Marietta, GA  30060
(770) 422-2995 - voice
(419) 730-8212 - fax
mailto:cgalgano@ediconsulting.com
http://www.ediconsulting.com
AS400 EDI, Networking, E-Commerce and Communications Consulting and
Implementation
http://www.icecreamovernight.com
Premium Ice Cream Brands shipped Overnight

"You ain't gonna learn what you don't want to know" - rw

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