How to connect

[DBinatti]

Hi, all!
I'm now developing an appliction which sends some messages to a cisco router. This app is running inside one POS (credit card transaction machine) and once the message is sent, the router is supposed to get the connection even if the username and password are not suplied.
Let me explain: The application is telnet-like. Once the app requests a connection, how can the router establish the connection bypassing the user authentication????

Any help would be apreciated. [sig][/sig]

 

[Kerzon]

Is this a connection to the router or through the router? [sig][/sig]

 

[DBinatti]

It's a connection through the router.
It comes from external links, passes through the router and then reaches an application which is listening all the time.
The message is processed and after it comes all the way back. [sig][/sig]

 

[wybnormal]

A couple of ideas come to mind.. use ISDN on demand, setup PPP and using router authenication ( transparent to you) on the link. Setup an access-list for whatever "interesting traffic" you generate with the app so the router knows to enable the port with this traffic. The flow would go like this.

POS generates traffic.
Router gets traffic and checks for interesting traffic
Yes, interesting traffic, dial ISDN
With ISDN connection, establish PPP
Check router name and password on the PPP link
Yes, correct router name, link established and traffic is now passed
On timeout of interesting traffic, ISDN is terminated


Just some thoughts

Mike [sig][/sig]