Modem connection to cisco 1841

Hello,

I got a strange problem with a analog modem connection to a cisco

1841. At the beginning of January 2007 the modems worked fine without any problems. 2 or 3 weeks later the modems doesn?t work. I did not get any connection to it. the router was resettet, the lines where testest and nothing worked. I did not get any error messages from this router.

What can I do ? I will descripe how the physical connection is: On the headquarter I got a cisco 3640 with a serial interface on wich

4 external modems are connected. This modems dial in to 4 other internal Modems on a Cisco 1841 on the remote location (WIC Modems) All modems on both locations are in a dialer group.

I?ve testet it also with a modem connected to my pc. It dials but my modem did not get an answer. Error message: the remote computer does not answer.

What can I do?

Attached the configuration of the cisco 3640 and 1841

Thank you for your help.

Regards

Kai

Remote Location

Current configuration : 4964 bytes ! version 12.3 service timestamps debug datetime msec service timestamps log datetime msec service password-encryption ! hostname Router1 ! boot-start-marker boot-end-marker ! logging buffered 10000 warnings logging monitor informational

! username CPARZ2 password xxxxxxxxxxxxxxxxxx mmi polling-interval 60 no mmi auto-configure no mmi pvc mmi snmp-timeout 180 no aaa new-model ip subnet-zero ip cef ! ! ! ! no ftp-server write-enable ! chat-script dial "" AT OK ATDT\\T TIMEOUT 90 CONNECT chat-script reset "" ATs0=1 OK ! ! ! interface Loopback1 ip address 192.xxx.xxxx.22 255.255.255.255 ! interface FastEthernet0/0 ip address 192.xxx.xxxx.1 255.255.255.0 duplex auto speed auto ! interface FastEthernet0/1 no ip address shutdown duplex auto speed auto ! interface Async0/0/0 description Analoger Backup ip unnumbered Dialer1 encapsulation ppp dialer in-band dialer rotary-group 1 dialer-group 1 async dynamic routing async mode dedicated compress stac routing dynamic ! interface Async0/0/1 description Analoger Backup ip unnumbered Dialer1 encapsulation ppp dialer in-band dialer rotary-group 1 dialer-group 1 async dynamic routing async mode dedicated compress stac routing dynamic ! interface Async0/1/0 description Analoger Backup ip unnumbered Dialer1 encapsulation ppp dialer in-band dialer rotary-group 1 dialer-group 1 async dynamic routing async mode dedicated compress stac routing dynamic ! interface Async0/1/1 description Analoger Backup ip unnumbered Dialer1 encapsulation ppp dialer in-band dialer rotary-group 1 dialer-group 1 async dynamic routing async mode dedicated compress stac routing dynamic ! interface Dialer1 ip address xxx.xxx.120.2 255.255.255.0 encapsulation ppp dialer in-band dialer idle-timeout 300 dialer wait-for-carrier-time 90 dialer hold-queue 50 dialer-group 1 no keepalive compress stac ppp authentication chap pap ! router eigrp 1 network 192.xxx.xxx.0 network 192.xxx.xxx.0 network xxx.xxx.120.0 auto-summary ! ip classless ip route 0.0.0.0 0.0.0.0 192.xxx.xxx.2 ip route 0.0.0.0 0.0.0.0 xxx.xxx.120.1 200 ! ip http server ip http authentication local ! access-list 100 deny udp any any eq rip access-list 100 deny udp any any eq sunrpc access-list 100 deny udp any any eq netbios-ns log access-list 100 deny udp any any eq snmp log access-list 100 deny udp any any eq snmptrap log access-list 100 deny udp any any eq bootpc log access-list 100 deny udp any any eq bootps log access-list 100 deny udp any any eq time log access-list 100 deny udp any any eq tftp log access-list 100 deny udp any any eq netbios-dgm access-list 100 deny udp any any eq netbios-ns access-list 100 deny udp any any eq netbios-ss access-list 100 permit ip any any dialer-list 1 protocol ip permit snmp-server community public RO snmp-server enable traps snmp authentication linkdown linkup coldstart warmstart snmp-server enable traps vrrp snmp-server enable traps tty snmp-server enable traps envmon snmp-server enable traps flash insertion removal snmp-server enable traps icsudsu snmp-server enable traps isdn call-information snmp-server enable traps isdn layer2 snmp-server enable traps isdn chan-not-avail snmp-server enable traps isdn ietf snmp-server enable traps ds0-busyout snmp-server enable traps ds1-loopback snmp-server enable traps aaa_server snmp-server enable traps atm subif snmp-server enable traps cnpd snmp-server enable traps config-copy snmp-server enable traps config snmp-server enable traps entity snmp-server enable traps frame-relay snmp-server enable traps frame-relay subif snmp-server enable traps hsrp snmp-server enable traps ipmulticast snmp-server enable traps ospf state-change snmp-server enable traps ospf errors snmp-server enable traps ospf retransmit snmp-server enable traps ospf lsa snmp-server enable traps ospf cisco-specific state-change snmp-server enable traps ospf cisco-specific errors snmp-server enable traps ospf cisco-specific retransmit snmp-server enable traps ospf cisco-specific lsa snmp-server enable traps pim neighbor-change rp-mapping-change invalid- pim-messa ge snmp-server enable traps pppoe snmp-server enable traps cpu threshold snmp-server enable traps rsvp snmp-server enable traps syslog snmp-server enable traps l2tun session snmp-server enable traps vtp snmp-server host xxx.xxxx.xxx ! control-plane ! ! line con 0 line aux 0 line 0/0/0 0/0/1 no flush-at-activation script dialer dial script reset reset modem Dialin transport input all stopbits 1 speed 115200 flowcontrol hardware line 0/1/0 0/1/1 no flush-at-activation script dialer dial script reset reset modem Dialin transport input all stopbits 1 speed 115200 flowcontrol hardware line vty 0 4 password 7 11282926 login transport input all line vty 5 15 password 7 121815140B5907 login transport input all ! end

Headquarter

username Router2 password xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

chat-script reset "" ATs0=1 OK chat-script dial "" AT OK ATDT\\T TIMEOUT 90 CONNECT ! ! interface Loopback0 ip address xxx.xxx.103.1 255.255.255.255 ! interface Ethernet0/0 ip address xxx.xxx.xxx.5 255.255.255.0 ip accounting output-packets bridge-group 2 ! interface Serial1/3 physical-layer async description analoger Backup ara Indonesien ip unnumbered Dialer10 encapsulation ppp no ip mroute-cache bandwidth 56 dialer in-band dialer rotary-group 10 dialer-group 3 async default routing async dynamic routing async mode interactive pulse-time 1 compress stac ! interface Serial1/5 physical-layer async description analoger Backup ara Indonesien ip unnumbered Dialer10 encapsulation ppp no ip mroute-cache bandwidth 56 dialer in-band dialer rotary-group 10 dialer-group 3 async default routing async dynamic routing async mode interactive pulse-time 1 compress stac ! interface Serial1/6 physical-layer async description analoger Backup ara Indonesien ip unnumbered Dialer10 encapsulation ppp no ip mroute-cache bandwidth 56 dialer in-band dialer rotary-group 10 dialer-group 3 async default routing async dynamic routing async mode interactive pulse-time 1 compress stac ! interface Serial1/7 physical-layer async description analoger Backup ara Indonesien ip unnumbered Dialer10 encapsulation ppp no ip mroute-cache bandwidth 56 dialer in-band dialer rotary-group 10 dialer-group 3 async default routing async dynamic routing async mode interactive pulse-time 1 compress stac ! interface Dialer10 ip address xxx.xxx.120.1 255.255.255.0 encapsulation ppp no ip route-cache no ip mroute-cache no keepalive dialer in-band dialer idle-timeout 300 dialer wait-for-carrier-time 90 dialer map ip xxx.xxx.120.2 modem-script dial xxxxxxxxxx dialer hold-queue 2 dialer load-threshold 1 either dialer-group 3 compress stac ppp authentication chap pap ! router eigrp 1 passive-interface Virtual-Template2 network xxx.xxx.103.0 ! ip http server ip http authentication local ip classless ip route 192.xxx..26.0 255.255.255.0 xxx.xxx.120.1

line con 0 line 36 no exec exec-timeout 0 0 no flush-at-activation script dialer dial script reset reset modem InOut transport input all no autohangup session-timeout stopbits 1 speed 115200 flowcontrol hardware line 38 40 no exec exec-timeout 0 0 no flush-at-activation script dialer dial script reset reset modem InOut transport input all no autohangup session-timeout stopbits 1 speed 115200 flowcontrol hardware line aux 0 line vty 0 4 password xxxxxxxxxxxxxxxxx login ! end

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