From: Matt Mullen (mullenm@gmail.com)
Date: Tue Oct 26 2004 - 12:39:37 GMT-3
R2 doesn't know what phone number to use to call back. In the
username command on R2, define the dial string for R5.
On Tue, 26 Oct 2004 08:50:10 -0600, Balogh, Jim <jim.balogh@gwl.com> wrote:
> I am working on Multiprotocol Challenge 'B from the IPexpert Workbook
> 6.0, and cannot seem to get my ISDN callin to work correctly.
>
> With the config below, R5 is supposed to call R2 and disconnect. R2 is
> then supposed to call R5 back. When I ping the remote end of the ISDN
> connection, both R2 and R5 will successfully place ISDN calls. When R5
> places a call to R2, the call is recognized as a ppp callin and
> disconnected (as it should). R2 never calls R5 back though....any ideas
> (debug ppp negotiation from R2 is below). On my debug ppp negotiation
> from R5, I never see: Callback negotiated.
>
> hostname r2
> !
> username r5 password cisco
> !
> interface BRI0
> ip address 150.50.9.2 255.255.255.192
> encapsulation ppp
> ip ospf authentication
> ip ospf authentication-key cisco
> ip ospf demand-circuit
> dialer map ip 150.50.9.5 name r5 class test broadcast xxxxxxxx
> dialer map ip 150.50.9.5 name r5 class test broadcast yyyyyyyy
> dialer load-threshold 1 either
> dialer-group 1
> isdn switch-type basic-ni
> isdn spid1 uuuuuuu
> isdn spid2 vvvvvvv
> ppp callback accept
> ppp authentication chap
> !
> router ospf 1
> router-id 200.0.0.2
> log-adjacency-changes
> area 0 authentication
> network 150.50.9.2 0.0.0.0 area 0
> distribute-list 5 in BRI0
> !
> map-class dialer test
> dialer callback-server username
>
> access-list 5 deny any
> access-list 199 permit ip any any
> dialer-list 1 protocol ip list 199
> ************************************************************************
> *****************
> hostname r5
> !
> username r2 password cisco
> !
> interface BRI0/0
> ip address 150.50.9.5 255.255.255.192
> encapsulation ppp
> ip ospf authentication
> ip ospf authentication-key cisco
> ip ospf demand-circuit
> dialer map ip 150.50.9.2 name r2 broadcast uuuuuuu
> dialer map ip 150.50.9.2 name r2 broadcast vvvvvvv
> dialer load-threshold 1 either
> dialer-group 1
> isdn switch-type basic-ni
> isdn spid1 xxxxx
> isdn spid2 yyyyy
> ppp callback request
> ppp authentication chap
> !
> router ospf 1
> router-id 255.255.255.250
> log-adjacency-changes
> area 0 authentication
> network 150.50.9.5 0.0.0.0 area 0
> distribute-list 5 in BRI0/0
> !
> access-list 5 deny any
> access-list 199 permit ip any any
> dialer-list 1 protocol ip list 199
>
> r2#sh isdn stat
> Global ISDN Switchtype = basic-ni
> ISDN BRI0 interface
> dsl 0, interface ISDN Switchtype = basic-ni
> Layer 1 Status:
> ACTIVE
> Layer 2 Status:
> TEI = 64, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
> TEI = 73, Ces = 2, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED
> TEI 64, ces = 1, state = 8(established)
> spid1 configured, spid1 sent, spid1 valid
> Endpoint ID Info: epsf = 0, usid = 0, tid = B
> TEI 73, ces = 2, state = 8(established)
> spid2 configured, spid2 sent, spid2 valid
> Endpoint ID Info: epsf = 0, usid = 1, tid = B
> Layer 3 Status:
> 0 Active Layer 3 Call(s)
> Active dsl 0 CCBs = 0
> The Free Channel Mask: 0x80000003
> Total Allocated ISDN CCBs = 0
> r2#
> 2d19h: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up
> 2d19h: BR0:1 PPP: Using dialer call direction
> 2d19h: BR0:1 PPP: Treating connection as a callin
> 2d19h: BR0:1 PPP: Phase is ESTABLISHING, Passive Open [0 sess, 0 load]
> 2d19h: BR0:1 LCP: State is Listen
> 2d19h: BR0:1 LCP: I CONFREQ [Listen] id 138 len 18
> 2d19h: BR0:1 LCP: AuthProto CHAP (0x0305C22305)
> 2d19h: BR0:1 LCP: MagicNumber 0x5EFC44DD (0x05065EFC44DD)
> 2d19h: BR0:1 LCP: Callback 0 (0x0D0300)
> 2d19h: BR0:1 LCP: O CONFREQ [Listen] id 136 len 15
> 2d19h: BR0:1 LCP: AuthProto CHAP (0x0305C22305)
> 2d19h: BR0:1 LCP: MagicNumber 0x1F01944C (0x05061F01944C)
> 2d19h: BR0:1 LCP: O CONFACK [Listen] id 138 len 18
> 2d19h: BR0:1 LCP: AuthProto CHAP (0x0305C22305)
> 2d19h: BR0:1 LCP: MagicNumber 0x5EFC44DD (0x05065EFC44DD)
> 2d19h: BR0:1 LCP: Callback 0 (0x0D0300)
> 2d19h: BR0:1 LCP: I CONFACK [ACKsent] id 136 len 15
> 2d19h: BR0:1 LCP: AuthProto CHAP (0x0305C22305)
> 2d19h: BR0:1 LCP: MagicNumber 0x1F
> r2#01944C (0x05061F01944C)
> 2d19h: BR0:1 LCP: State is Open
> 2d19h: BR0:1 PPP: Phase is AUTHENTICATING, by both [0 sess, 0 load]
> 2d19h: BR0:1 CHAP: O CHALLENGE id 136 len 23 from "r2"
> 2d19h: BR0:1 CHAP: I CHALLENGE id 136 len 23 from "r5"
> 2d19h: BR0:1 CHAP: Waiting for peer to authenticate first
> 2d19h: BR0:1 CHAP: I RESPONSE id 136 len 23 from "r5"
> 2d19h: BR0:1 CHAP: O SUCCESS id 136 len 4
> 2d19h: BR0:1 CHAP: Processing saved Challenge, id 136
> 2d19h: BR0:1 CHAP: O RESPONSE id 136 len 23 from "r2"
> 2d19h: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to 7204935774
> r5
> 2d19h: %LINK-3-UPDOWN: Interface BRI0:1, changed state to down
> 2d19h: BR0:1 PPP: Phase is TERMINATING [0 sess, 0 load]
> 2d19h: BR0:1 LCP: State is Closed
> 2d19h: BR0:1 PPP: Phase is DOWN [0 sess, 0 load]
> r2#
>
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