Hi all,
I am battling with a RAS issue here. We have a PRI with 30 digital modems in a cisco 3620 chassis. This is used for a business application that does a RAW telnet dialup and the config automatically telnets to a server on a given port number. We have this working 100%.
The issue comes in now with the client wanting to add normal dialup for support staff as well. ISDN dialup is a breeze and works great. What we have seen with the analogue dialup is that any modem randomly answers the incoming call and based on this, the dialup does not go to the correct line and further get the correct config. I have separated the lines in the config to have 5 lines for support analogue dialup and 25 for the business app - still no luck.
I know my configs are correct as I have analogue dialup with the same hardware working elsewhere.
Is there a way to force a specific range of modems to answer when a certain ISDN number is dialled?? What I am thinking is that the service provider do some config where there can be a specific number (other than the normal trigger number) for the analogue users. From my search on CCO the closest I can come to is something called "modem pooling"> There is a big note there that says "not supported on the 3600 platform".
When you dial the trigger number, the channel that answers is entirely random and hands over to a random modem. This is the issue.
I have pasted the working config below followed by the NOT working line commands for dialup.
version 12.2
service timestamps debug datetime msec localtime
service timestamps log datetime msec localtime
service password-encryption
!
hostname <unknown>
!
logging buffered 4096 debugging
!
username <blank> password xxxxxxxxxxxx
modem country mica south-africa
ip subnet-zero
!
!
no ip domain-lookup
ip domain-name <whatever>
ip name-server <whatever+1>
!
async-bootp dns-server x.x.x.x
isdn switch-type primary-net5
chat-script AT TIMEOUT 30 OK atdt\T TIMEOUT 30 CONNECT \C !
!
controller E1 1/0
pri-group timeslots 1-31
description Link for Async Clients
!
controller E1 1/1
!
!
!
interface FastEthernet1/0
ip address x.x.x.x
duplex auto
speed auto
!
interface Serial1/0:15
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type primary-net5
isdn incoming-voice modem
no fair-queue
no cdp enable
ppp auth chap pap ms-chap
!
interface Group-Async1
no ip address
encapsulation ppp
no ip mroute-cache
dialer in-band
dialer pool-member 1
async mode interactive
peer default ip address pool local
ppp authentication chap pap
group-range 1 30
!
interface Dialer1
ip unnumbered FastEthernet1/0
encapsulation ppp
dialer pool 1
dialer remote-name <blank>
dialer-group 1
peer default ip address pool local
ppp authentication chap pap
ppp multilink
!
interface Dialer3
ip unnumbered FastEthernet1/0
encapsulation ppp
dialer pool 1
dialer remote-name <blank>
dialer-group 1
peer default ip address pool local
ppp authentication chap pap
ppp multilink
!
ip local pool local x.x.x.x y.y.y.y
ip default-gateway x.x.x.x
ip classless
ip route 0.0.0.0 0.0.0.0 x.x.x.x
ip http server
ip pim bidir-enable
!
access-list 100 deny eigrp any any
access-list 100 deny ip any host 224.0.0.10
access-list 100 deny udp any any eq snmp
access-list 100 permit ip any any
dialer-list 1 protocol ip list 100
!
line con 0
exec-timeout 0 0
password 7 094D
logging synchronous
login
line 1 30
no motd-banner
no exec-banner
exec-timeout 0 0
flush-at-activation
no vacant-message
modem InOut
modem autoconfigure discovery
autocommand telnet 192.168..x.x 5000 /quiet /stream
transport input all
autoselect during-login
autoselect ppp
flowcontrol hardware
line aux 0
line vty 0 4
exec-timeout 20 0
password 7 0112
logging synchronous
login
!
NOT working line commands:
interface Group-Async1
no ip address
encapsulation slip
no ip mroute-cache
async mode interactive
no peer default ip address
group-range 6 30
!
interface Group-Async2
ip unnumbered FastEthernet1/0
encapsulation ppp
no ip mroute-cache
dialer in-band
dialer pool-member 1
async mode interactive
peer default ip address pool local
ppp authentication chap pap ms-chap
group-range 1 5
line 1 5
exec-timeout 0 0
flush-at-activation
modem InOut
modem autoconfigure discovery
transport input all
autoselect during-login
autoselect ppp
flowcontrol hardware
line 6 30
no motd-banner
no exec-banner
exec-timeout 0 0
flush-at-activation
no vacant-message
modem InOut
modem autoconfigure discovery
autocommand telnet x.x.x.x 5000 /quiet /stream
transport input all
flowcontrol hardware
