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Re: Getting started


 

On 14/07/2023 00.49, Mantas Mikul?nas via groups.io wrote:
On 14/07/2023 00.44, Mantas Mikul?nas via groups.io wrote:
On 13/07/2023 23.50, Alice Wyan wrote:
Just reread your post, I think I misunderstood it the first time around.

The AUX port on the Cisco is just an async serial port, right?
It is, yes.
So what you are suggesting, if I read correctly, would be:

a) plug a serial device (computer or whatever) on to the AUX port of the Cisco router
b) configure x25 routing on the Cisco so that incoming X.25 connections via XOT go to the AUX port
If you mean running actual X.25 communications software on the CP/M – I don't think that'll quite work, as IOS will not let you route X.25 over async lines; I believe it only works over synchronous serial ports. (The cpm-x25 docs mention synchronous mode being required on its end, too.)

Though if all you have is an async AUX, you can still connect devices over it, but you'll need the Cisco router *itself* to accept the X.25 call into one of its vty lines (service pad from-xot), and have that line configured with an `autocommand` to telnet somewhere further.

(E.g. if the device provides a plain login prompt via serial, then an autocommand to telnet to the router's own "reverse telnet" ports for the AUX line. If the device does PPP, *that* can run over AUX and you can have an autocommand to telnet to the device via PPP, or DECnet `lat` connection, or something such.)
About what you said earlier about not giving users access: In IOS, lines *won't* have console (Exec) access if an `autocommand` is set on them. So it should be safe to assign a few vty lines to `transport input pad`, give them an X.25 sub-address using `rotary XX`, and point them wherever is needed. It's not exactly a pure conversion but it does the job...
Ahhhh. Hold on. I completely forgot about an easier possibility, even though I was making my own notes on this *literally two days ago.*

You don't need an autocommand or "reverse telnet" for X.25-to-AUX. You can just directly assign `rotary` to the aux line, and the router will accept PAD calls and directly connect them to the AUX output.

Sorry for forgetting that option.

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