Hi Stuart, I set this up on an 803 and a 3620 and here is what I found. I had to add a few basic commands like dialer-group and dialer map to make the 801 dial out but I assume you just left those out of your post because you say it works without the callback options configured.
I used debug ppp negotiation on both routers, as well as debug isdn q931 to make sure I could see which router is disconnecting the calls. Debug dialer events and debug dialer packet are always handy to use as well. As a side note I found the CIT Exam Cert Guide from ciscopress really helped me to understand the ppp neg and q931 debug output when I was doing CCNP. The 800 dials out and claims to have negotiated a callback and states that it is waiting to be disconnected by the callback server. You will find this immediately after the CHAP section of the debug ppp negotiation output. It is the debug dialer output that shows this line. The 3600 receives the call but has the following line after the CHAP success : 01:33:21: BR1/0:1 DDR: No callback configured for user cisco801. I solved this by adding the following to the 3620. interface dialer 60 dialer string 11 class Callback ! map-class dialer Callback dialer callback-server username You may also have to use the dialer enable-timeout and dialer wait-for-carrier-time commands. Hope this helps. Rgds, Glenn. Stuart Laubstein wrote: > > I just got ISDN for my lab and am trying to set up a call back. > I am using > an 801 and a 3620. > > Config of Interface on the 3620 > > interface Dialer 60 > description Connection for home lab > ip address 10.69.240.237 255.255.255.252 > encapsulation ppp > dialer pool 1 > dialer remote-name cisco801 > dialer callback-secure > dialer idle-timeout 55 > dialer callback-secure > dialer string xxxxxxxxxx > dialer-group 1 > ppp callback accept > ppp authentication chap > ppp chap password 0 stortCisco > ppp multilink > > > 801 Config > > > interface BRI0 > no ip address > no ip directed broadcast > encapsulation ppp > dialer pool-member 1 > isdn-switch-type basic net3 > ppp callback request > ppp authentification chap > > > > Without the call back it was working fine , now it breaks the > connection > right after dialing in. Is this a a chap problem? Am I missing > a command > perhaps. > > thanks > > stuart > > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=65736&t=65649 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
