Re: RE: RE: Accessing AS400 Through Port Redirection

[Vernon Hamberg <vhamberg@xxxxxxxxxxx>]

It was not clear that you are specifying the external port when you try to 
connect to this IP address from the outside. You must put    :4000   after 
the IP address, otherwise there is nothing to forward through the router.

http://yourexternalip:4000

If you want to come in with Client Access, there is a whole raft of ports 
you need to open up. The VPN suggestion is more secure. LinkSys makes some 
nice VPN routers/appliances that can also do port redirection to some 
extent, if needed. You either need a client on the remote computers or set 
up a VPN "dialup" connection in Windows.

HTH
Vern

At 06:28 AM 1/19/2005, you wrote:
> Hi Mike
>
> I already have the standard external ports, (80, 21, 23, etc) mapped to 
> the relevant servers within the network and they work fine.  I have always 
> been led to believe that mapping alternative ports to these ports on 
> different servers is fine but it requires the external port to be 
> specified (which I don't mind doing).
>
> I started looking at the redirection to port 80, purely because I thought 
> it would be the easiest to test - a different web page to that of my 
> normal web server - figuring that if I could access a web page on the 
> AS/400 then it should be fairly straight forward to access an interactive 
> session with Client Access or Mocha TN5250 as the emulator.
>
> I will double check the default route when I get back home on Friday.
>
> Thanks
>
> Jonathan
>
>
>
> -----Original message-----
> From: "Mike Silvers" MSilvers@xxxxxxxxxxx
> Date: Wed, 19 Jan 2005 12:17:50 +0000
> To: "Midrange Systems Technical Discussion" midrange-l@xxxxxxxxxxxx
> Subject: RE: RE: Accessing AS400 Through Port Redirection
>
> > Ok -- two things -- first -- a web page is not required to sign on to
> > the 400.  Second, from what you described, the external traffic going to
> > the web server originates from port 4000 in the external world.  If you
> > would like the web page to be displayed to the outside world, the
> > external port should be port 80.  So -- there should be no redirection
> > going on.  The router should be set to allow port 80 to pass thru to
> > 192.168.0.100.
> >
> > If you would like to have remote access, I would recommend one of two
> > ways.  The first is Client Access with SSL encryption.  The second way
> > would be a VPN to your network and sign on using either Client Access
> > (no SSL) or Rumba.
> >
> > Mike
> >
> > -----Original Message-----
> > From: midrange-l-bounces@xxxxxxxxxxxx
> > [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Jonathan Mason
> > Sent: Wednesday, January 19, 2005 7:05 AM
> > To: Midrange Systems Technical Discussion
> > Subject: Re: RE: Accessing AS400 Through Port Redirection
> >
> > Hi Mike,
> >
> > No, I use my registered domain address which gets the request to the
> > router.  The AS400 is on a private address, 192.168.0.100, and the
> > router redirects port 4000 to 192.168.0.100:80
> >
> > Ultimately I want to be able to sign on to the AS400 over the internet
> > when I'm working away from home - which happens a lot these days.
> >
> > All the best
> >
> > Jonathan
> >
> > -----Original message-----
> > From: "Mike Silvers" MSilvers@xxxxxxxxxxx
> > Date: Wed, 19 Jan 2005 11:40:13 +0000
> > To: "Midrange Systems Technical Discussion" midrange-l@xxxxxxxxxxxx
> > Subject: RE: Accessing AS400 Through Port Redirection
> >
> > > When you are trying to access the web page from the external world,
> > are
> > > you using the url: http://ipaddress:4000/ ?
> > >
> > > -----Original Message-----
> > > From: midrange-l-bounces@xxxxxxxxxxxx
> > > [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Jonathan Mason
> > > Sent: Wednesday, January 19, 2005 6:06 AM
> > > To: Midrange-L
> > > Subject: Accessing AS400 Through Port Redirection
> > >
> > > I have a model 150 running v4r5 at home which is connected to my home
> > > network.  I also have a cable broadband connection to my network with
> > a
> > > static IP address and a Draytek Vigor 2104p router peforming NAT and
> > > Port Redirection.
> > >
> > > I want to be able to access the AS/400 over the internet, and have set
> > > up Port Redirection to map a specific port to the AS/400 (for example
> > > Port 4000 being redirected to the AS/400's port 80).  However, when I
> > > try to connect from outside of the network I get no response from the
> > > AS/400.  Looking at the router, I can see that the Port Redirection
> > has
> > > generated the correct address and port, but the AS/400 doesn't pick it
> > > up.
> > >
> > > Is there anything that needs to be configured on the AS/400 that I may
> > > have missed?  I can see web pages from within the network, but not
> > from
> > > the outside.
> > >
> > > Any suggestions would be most appreciated.
> > >
> > > Thanks
> > >
> > > Jonathan
> > >
> > >
> > > Jonathan Mason
> > > www.astradyne-uk.com
> > >
> > > --
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> >
> > Jonathan Mason
> > www.astradyne-uk.com
> >
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>
> Jonathan Mason
> www.astradyne-uk.com
>
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