ISDN routing on 3640

[brandondaly]

I have a 3640 router, with Serveral serial interfaces, and modem dial ups. We have now added an ISDN module, and have a 761 ISDN router at a remote office. We managed to configure the system and had DDR working a couple of weeks ago. Unfortunately we failed to save the running configuration on the 3540 and lost it during a power shortage. We have been unable to get the system working again.

The config is as follows

!
service timestamps debug uptime
service timestamps log uptime
service password-encryption
no service tcp-small-servers
no service udp-small-servers
!
hostname ANS0175_Salford
!
enable password
username ANS0400_Bangor password
!
no ip name-server
!
isdn switch-type basic-net3
!
ip subnet-zero
no ip domain-lookup
ip routing
!
!
interface Ethernet 0/0
no shutdown
description connected to Frederick Road LAN
ip address 159.245.191.254 255.255.255.0
no keepalive
!
interface Serial 1/0
no shutdown
description connected to ANS0170_Kirby
ip unnumbered Ethernet 0/0
encapsulation ppp
!
interface Serial 1/1
no shutdown
description connected to ANS0171_Kendal
ip unnumbered Ethernet 0/0
encapsulation ppp
!
interface Serial 1/2
no shutdown
description connected to ANS0172_Preston
ip unnumbered Ethernet 0/0
encapsulation ppp
!
interface Serial 1/3
no shutdown
description connected to ANS0173_Manc
ip unnumbered Ethernet 0/0
encapsulation ppp
!
Interface Dialer1
Description connected to ANS0400_Bangor
Ip unnumbered FastEthernet0/0
Encapsulation ppp
No ip split-horizon
Dialer in-band
Dialer map snapshot 1 name ANS0400_Bangor broadcast <bangornumber>
Dialer map ip 159.245.58.129 name ANS0400_Bangor broadcast <bangornumber>
Dialer hold-queue 10
Dialer-group 1
Snapshot client 15 360 suppress-statechange-update dialer
No cdp enable
Ppp authentication chap
Ppp multilink
!
Interface BRI3/0
Description connected to ANS0400_Bangor
No ip address
Encapsulation ppp
Dialer rotary-group 1
Isdn switch-type basic-net3
No cdp enable
Ppp authentication chap
Ppp multilink
!
interface BRI 3/1
no description
no ip address
shutdown
!
interface BRI 3/2
no description
no ip address
shutdown
!
interface BRI 3/3
no description
no ip address
shutdown
!
interface Async 1
no shutdown
description connected to Dial-inPCs(modem)
ip unnumbered Ethernet 0/0
ip tcp header-compression passive
encapsulation ppp
async mode dedicated
group-range 65 80
ppp authentication chap
no cdp enable
peer default ip address pool ANS0175_Salford-Group-1
!
! Dialer Control List 1
!
no dialer-list 1
dialer-list 1 protocol ip permit
!
router rip
version 2
network 159.245.0.0
no auto-summary
!
!
ip local pool ANS0175_Salford-Group-1
ip classless
no ip http server
!
line console 0
exec-timeout 0 0
password
login
!
line vty 0 4
password
login
!
line 65 80
exec



Can anyone help?

 

[jevansau99]

pls. run your ISDN debugs and dialer debugs and this will help us solve the problem more quickly and easily.

what is doing your authentication? i dont' see any sent username's and pass's. &quot;No hacker is worth missing a Dead concert for&quot; - c.s.

 

[brandondaly]

How do I run the ISDN and dialer debugs? I also noticed the lack of sent usernames and passwords, but the cisco config maker program didn't produce any, which has led to the system only accepting calls from ANS0400_Bangor and not being able to call out.

 

[brandondaly]

I have set the ISDN and dialer debugs to be switched on, but I do not know how to view the log files. I have also rerun the Config maker program, and it doesn't seem to set up either end to send password information. The only reason it probably worked the first time was because ANS0400 was programmed using faststep program and does send out the username and password information and ANS0175 was authenticating it. This would also probably explain why I could only get a connection started from the ANS0400_Bangor end.

Any futher help still greatly appreciated. Brand.

 

[jevansau99]

brandon,

the easiest way to view the debugs is just set in enabled mode: &quot;debug ppp authentication&quot; &quot;debug isdn q931&quot; &quot;debug dialer&quot;- and make sure you're monitoring the console by typing &quot;term mon&quot; if you're not plugged into the console port. try to place an isdn call through pinging an address and watch the debugs come up on your screen. just copy and paste this to the forum. Most likely it is just authentication or at the very least PART of the problem is authentication. lets get this straightened out before anything else.

Also, those config maker programs are not usually recommended or used. I have never used one, so I don't know exactly what its going to spit out. I saw some commands in your config that i have never used. this could just be my ignorance, but i dont' know what &quot;no dialer list 1&quot; does for instance.

thx, jason &quot;No hacker is worth missing a Dead concert for&quot; - c.s.

 

[brandondaly]

OK, the line is back up. It appears that the telecoms company sent the bill to the wrong address, the bill didn't get paid, and as the office is unmanned most of the time they could get hold of anyone so they disconnected the line. This occurred in the same day that we had a power outage in our main telecoms so we never checked the line, as we made a bad assumption.

However, we cannot ping from ANS0175 to any of the PC's connected to ANS0400, and as you noted there is not password or username information being sent as part of the Dialer, if you can offer any help with this I will be very thankful.

 

[jevansau99]

here's what i would say stick this in your dialer interface:

no ppp authentication chap
ppp authentication pap callin
ppp pap sent-username brandon password daly

make sure you get the proper username and pass from your ISP. &quot;No hacker is worth missing a Dead concert for&quot; - c.s.