3661 have a nm-4b-s/t module,act as an access server,and a e1&18dm module(but not be used now),the following is the config Building configuration... Current configuration : 9936 bytes ! version 12.2 no parser cache no service single-slot-reload-enable service timestamps debug uptime service timestamps log uptime no service passWord-encryption ! hostname 3661 ! logging rate-limit console 10 except errors username 8888 password 0 8888 username leo password leo memory-size iomem 15 modem country mica china ip subnet-zero ! ! ! no ip dhcp-client network-discovery isdn switch-type PRimary-net5 ! ! controller E1 1/0 framing NO-CRC4 pri-group timeslots 1-31 ! ! interface FastEthernet0/0 ip address 168.168.44.150 255.255.255.0 duplex auto speed auto ! interface Serial1/0:15 no ip address encapsulation ppp dialer rotary-group 1 dialer-group 1 isdn switch-type primary-net5 isdn incoming-voice modem no cdp enable ! interface BRI3/0 no ip address encapsulation ppp dialer pool-member 2 isdn switch-type basic-net3 isdn incoming-voice modem ppp authentication pap chap callin ! interface BRI3/1 no ip address encapsulation ppp dialer pool-member 2 isdn switch-type basic-net3 isdn incoming-voice modem ppp authentication pap chap callin interface BRI3/2 no ip address encapsulation ppp dialer pool-member 2 isdn switch-type basic-net3 isdn incoming-voice modem ppp authentication pap chap callin ! interface BRI3/3 no ip address encapsulation ppp dialer pool-member 2 isdn switch-type basic-net3 isdn incoming-voice modem ppp authentication pap chap callin ! interface Group-Async1 ip unnumbered FastEthernet0/0 encapsulation ppp load-interval 30 dialer in-band dialer idle-timeout 3600 async mode interactive peer default ip address pool cisco3661-group-1 ppp authentication chap callin group-range 65 94 hold-queue 10 in ! interface Dialer1 ip unnumbered FastEthernet0/0 encapsulation ppp dialer in-band dialer idle-timeout 3600 dialer-group 1 peer default ip address pool cisco3661-group-1 no cdp enable ppp authentication pap chap ! interface Dialer2 ip unnumbered FastEthernet0/0 encapsulation ppp dialer pool 1 dialer-group 1 peer default ip address pool cisco3661-group-1 pulse-time 0 ppp authentication pap chap callin ! ip local pool cisco3661-group-1 168.168.44.110 168.168.44.140 ip classless ip http server ! access-list 1 permit any dialer-list 1 protocol ip list 1 ! line con 0 line 65 94 exec-timeout 0 0 modem answer-timeout 120 modem Dialin modem autoconfigure discovery transport input all autoselect ppp flowcontrol hardware line aux 0 line vty 0 4 password ciscos login ! ! end 现在问题是模拟电话能够正常拨入，可是ISDN却不能拨入!邪门了！我debug isdn q931 debug ppp neg debug ppp authen 以后得到如下提示： ISDN BR3/0: RX <- SETUP pd = 8 callref = 0x6D 2d01h: Bearer Capability i = 0x8890 2d01h: Channel ID i = 0x89 2d01h: Called Party Number i = 0xA1, '2150663325', Plan:ISDN, Type:Natio nal 2d01h: Sending Complete 2d01h: ISDN BR3/0: Event: Received a DATA call from on B1 at 64 Kb/s 2d01h: ISDN BR3/0: Event: Accepting the call id 0x51 2d01h: %LINK-3-UPDOWN: Interface BRI3/0:1, changed state to up 2d01h: BR3/0:1 PPP: Treating connection as a callin 2d01h: BR3/0:1 PPP: Phase is ESTABLISHING, Passive Open [0 sess, 1 load] 2d01h: BR3/0:1 LCP: State is Listen 2d01h: ISDN BR3/0: TX -> CALL_PROC pd = 8 callref = 0xED 2d01h: Channel ID i = 0x89 2d01h: ISDN BR3/0: TX -> CONNECT pd = 8 callref = 0xED 2d01h: ISDN BR3/0: RX <- CONNECT_ACK pd = 8 callref = 0x6D 2d01h: BR3/0:1 LCP: I CONFREQ [Listen] id 1 len 17 2d01h: BR3/0:1 LCP: MagicNumber 0x00432275 (0x050600432275) 2d01h: BR3/0:1 LCP: PFC (0x0702) 2d01h: BR3/0:1 LCP: ACFC (0x0802) 2d01h: BR3/0:1 LCP: Callback 6 (0x0D0306) 2d01h: BR3/0:1 LCP: O CONFREQ [Listen] id 38 len 14 2d01h: BR3/0:1 LCP: AuthProto PAP (0x0304C023) 2d01h: BR3/0:1 LCP: MagicNumber 0x1184EDF8 (0x05061184EDF8) 2d01h: BR3/0:1 LCP: O CONFREJ [Listen] id 1 len 7 2d01h: BR3/0:1 LCP: Callback 6 (0x0D0306) 2d01h: BR3/0:1 LCP: I CONFACK [REQsent] id 38 len 14 2d01h: BR3/0:1 LCP: AuthProto PAP (0x0304C023) 2d01h: BR3/0:1 LCP: MagicNumber 0x1184EDF8 (0x05061184EDF8) 2d01h: BR3/0:1 LCP: I CONFREQ [ACKrcvd] id 2 len 14 2d01h: BR3/0:1 LCP: MagicNumber 0x00432275 (0x050600432275) 2d01h: BR3/0:1 LCP: PFC (0x0702) 2d01h: BR3/0:1 LCP: ACFC (0x0802) 2d01h: BR3/0:1 LCP: O CONFACK [ACKrcvd] id 2 len 14 2d01h: BR3/0:1 LCP: MagicNumber 0x00432275 (0x050600432275) 2d01h: BR3/0:1 LCP: PFC (0x0702) 2d01h: BR3/0:1 LCP: ACFC (0x0802) 2d01h: BR3/0:1 LCP: State is Open 2d01h: BR3/0:1 PPP: Phase is AUTHENTICATING, by this end [0 sess, 1 load] 2d01h: BR3/0:1 PAP: I AUTH-REQ id 1 len 12 from "leo" 2d01h: BR3/0:1 PAP: Authenticating peer leo 2d01h: BR3/0:1 PAP: O AUTH-ACK id 1 len 5 2d01h: BR3/0:1 PPP: Phase is UP [0 sess, 1 load] 2d01h: BR3/0:1 CDPCP: O CONFREQ [Closed] id 17 len 4 2d01h: %ISDN-6-CONNECT: Interface BRI3/0:1 is now connected to leo 2d01h: %ISDN-6-DISCONNECT: Interface BRI3/0:1 disconnected from leo, call last ed 1 seconds 2d01h: ISDN BR3/0: TX -> DISCONNECT pd = 8 callref = 0xED 2d01h: Cause i = 0x8090 - Normal call clearing 2d01h: ISDN BR3/0: RX <- RELEASE pd = 8 callref = 0x6D 2d01h: %LINK-3-UPDOWN: Interface BRI3/0:1, changed state to down 2d01h: BR3/0:1 CDPCP: State is Closed 2d01h: BR3/0:1 PPP: Phase is TERMINATING [0 sess, 1 load] 2d01h: BR3/0:1 LCP: State is Closed 2d01h: BR3/0:1 PPP: Phase is DOWN [0 sess, 1 load] 2d01h: ISDN BR3/0: TX -> RELEASE_COMP pd = 8 callref = 0xED 我受不了了，因为密码验证已经通过了（假如我在客户端密码乱写，比如1234，那么路由器和客户端都会提示密码错误），可是就是不行，救命啊! 我前两天也碰到很类似的东西，现在还没有解决，在cisco.com上查到如下的话： problem:The remote device does not authenticate itself. This can be seen usually with non-Cisco devices, e.g. Ascend, Livingston. suggest:Use IOS 10.3(9), 11.0(5) or 11.(1) or higher, which have the option for: ppp authentication chap callin, or ppp authentication pap callin 但是场景是两个isdn对拨的，问题是说这分明就是cisco的产品啊，难道nt1这些也必须用cisco的？配置也有ppp authen pap chap callin这些话呀。就是不知道doesnot authen itself是什么意思
