?

So, like the other Dave, I've run into some unfortunate side effects of using a Cisco 26xx router.

I'm running IOS c2600-ipvoice-mz 12.3(9) so thankfully I've got support for the
? ? x25 route (...)(...).. xot dns \2.\1.x25.org
line in the config and my router is able to lookup other hosts.
I did have to configure the access-list to allow all IPs, otherwise it was rejecting all XOT traffic incoming and outgoing.

I have managed to set up a config where analog calls to WIC-2AM modems get presented a hidden menu that resembles the prompt you would get when connecting to TELENET/DATAPAC/TYMNET.
This allows you to connect to a short list of up to 17 predefined hosts (18 menu entries max, including the exit command).

Where I've hit a stumbling block is having a way to map incoming x25 calls to give remote access to my analog modems.
It would appear that "interface Async<x>" doesn't support "encapsulation x25" on the c2620 which as I understand would be needed for it to work how I want.

For now I guess I can use the cisco for outbound calls to a limited subset of TELEBAHN hosts. I'll have to figure out how to get inbound x25 calls routed to a modem bank hanging off another box eventually.
I'm sure someone has a better idea for this, and I'll probably replace the hidden menu on the c2620 with routing through something running on a linux box eventually.

-DK

relevant lines for the dial-in menu:

!
modemcap entry AUTOANSWER:MSC=S0=1:TPL=default
modemcap entry NOANSWER:MSC=S0=0:TPL=default
!
alias exec tpcbbs pad 78398001
!
menu tpcnet prompt '@'
menu tpcnet command 783980 tpcbbs
menu tpcnet command tpcbbs tpcbbs
menu tpcnet command exit exit
menu tpcnet default exit
menu tpcnet line-mode
menu tpcnet single-space
!
banner motd '

TPCNET
783 235 0$(line)A
'
!
line con 0
no motd-banner
!
line 1 4
exec-timeout 0 0
x25 subaddress line
vacant-message ''
modem Dialin
modem autoconfigure type AUTOANSWER
autocommand menu tpcnet
no activation-character
length 0
transport output pad telnet
autoselect timeout 1
autohangup
stopbits 1
speed 115200
flowcontrol hardware
!