837 ADSL problem

Discussion in 'Cisco' started by Colin Fakley, Apr 7, 2005.

  1. Colin Fakley

    Colin Fakley Guest

    Hi,

    I am having a strange problem with a batch of 837 routers. I have
    currently deployed 5 of these to some of our remote offices dotted
    around the UK. They are all running IOS Version 12.3(11)T3.

    The ADSL ISP is Nildram.

    The problem I am having is that the router drops the ADSL connection
    for no reason. This seems quite random, although it does happen with
    more frequancy when no traffic on the line.

    We use these routers to create IPSec tunnels to 3 hub offices in
    Denmark, the US, and Australia. Dynamic tunnels can also be opened
    between any other of our IPSec enabled sites. Such as one UK site to
    another.

    Here is my config...
    Building configuration...

    Current configuration : 29027 bytes
    !
    version 12.3
    service nagle
    no service pad
    service tcp-keepalives-in
    service tcp-keepalives-out
    service timestamps debug datetime msec localtime show-timezone
    service timestamps log datetime msec localtime show-timezone
    service password-encryption
    service sequence-numbers
    !
    hostname Mai-test
    !
    boot-start-marker
    boot-end-marker
    !
    memory-size iomem 5
    !
    username <removed>privilege 15 secret 5 <removed>
    username <removed>privilege 7 secret 5 <removed>
    username <removed> privilege 15 secret 5 <removed>
    username <removed>privilege 15 secret 5 <removed>
    clock timezone UK 0
    clock summer-time UK recurring last Sun Mar 2:00 last Sun Oct 3:00
    aaa new-model
    !
    !
    aaa authentication banner ^C

    Welcome to this router.

    UNAUTHORIZED ACCESS PROHIBITED

    ^C
    aaa authentication fail-message ^C

    Failed login. Try again.

    ^C
    aaa authentication login default local-case
    aaa authorization console
    aaa authorization exec default local
    aaa session-id common
    ip subnet-zero
    no ip source-route
    no ip gratuitous-arps
    !
    !
    no ip dhcp conflict logging
    ip dhcp excluded-address 10.73.1.0 10.73.1.29
    !
    ip dhcp pool Mai-test
    import all
    network 10.73.1.0 255.255.255.0
    dns-server 10.100.3.1 10.98.3.1
    netbios-name-server 10.100.3.1 10.98.3.1
    netbios-node-type h-node
    default-router 10.73.1.1
    lease 0 8
    !
    !
    ip telnet source-interface Ethernet0
    ip cef
    ip tftp source-interface Ethernet0
    ip domain name oticon.dk
    ip host ipseccert 10.100.128.12
    ip host ipsec_AU 10.28.128.11
    ip host ipsec_US 10.64.128.11
    ip host ipsec_DK 10.100.128.12
    ip name-server 213.129.10.4
    no ip bootp server
    ip multicast-routing
    ip inspect max-incomplete low 500
    ip inspect max-incomplete high 1100
    ip inspect one-minute low 500
    ip inspect one-minute high 1100
    ip inspect name fw cuseeme
    ip inspect name fw fragment maximum 256 timeout 1
    ip inspect name fw ftp
    ip inspect name fw h323
    ip inspect name fw http
    ip inspect name fw icmp
    ip inspect name fw netshow
    ip inspect name fw rcmd
    ip inspect name fw realaudio
    ip inspect name fw rtsp
    ip inspect name fw sip
    ip inspect name fw skinny
    ip inspect name fw smtp
    ip inspect name fw sqlnet
    ip inspect name fw streamworks
    ip inspect name fw tcp
    ip inspect name fw tftp
    ip inspect name fw udp
    ip inspect name fw vdolive
    ip ips po max-events 100
    ip ssh time-out 60
    ip ssh authentication-retries 2
    no ftp-server write-enable
    !
    crypto pki trustpoint ipsec_AU
    enrollment retry count 5
    enrollment retry period 2
    enrollment mode ra
    enrollment url http://ipsec_AU:80/certsrv/mscep/mscep.dll
    usage ike
    serial-number
    ip-address 10.73.1.1
    subject-name OU=DK O=DK
    crl query ldap://ipsec_AU
    revocation-check none
    auto-enroll
    !
    crypto pki trustpoint ipsec_DK
    enrollment retry count 5
    enrollment retry period 2
    enrollment mode ra
    enrollment url http://ipsec_DK:80/certsrv/mscep/mscep.dll
    usage ike
    serial-number
    ip-address 10.73.1.1
    subject-name OU=DK O=DK
    crl query ldap://ipsec_DK
    revocation-check none
    auto-enroll
    !
    crypto pki trustpoint ipsec_US
    enrollment retry count 5
    enrollment retry period 2
    enrollment mode ra
    enrollment url http://ipsec_US:80/certsrv/mscep/mscep.dll
    usage ike
    serial-number
    ip-address 10.73.1.1
    subject-name OU=DK O=DK
    crl query ldap://ipsec_US
    revocation-check none
    auto-enroll
    !
    !
    crypto pki certificate chain ipsec_AU
    certificate 14C4E3CA0000000000DB
    <removed>
    quit
    certificate ca 1E6063DC000000000034
    <removed>
    quit
    crypto pki certificate chain ipsec_DK
    certificate 453D063300000000016C
    <removed>
    quit
    certificate ca 15920DE2000000000016
    <removed>
    quit
    crypto pki certificate chain ipsec_US
    certificate 79FCF1BD00000000003A
    <removed>
    quit
    certificate ca 15A57BCF000000000033
    <removed>
    quit
    no crypto engine onboard 0
    !
    !
    !
    crypto isakmp policy 10
    encr 3des
    group 2
    crypto isakmp invalid-spi-recovery
    crypto isakmp keepalive 30 10
    !
    !
    crypto ipsec transform-set 3DES esp-3des esp-sha-hmac
    mode transport
    no crypto ipsec nat-transparency udp-encaps
    !
    crypto ipsec profile DMVPN1
    set transform-set 3DES
    !
    !
    !
    !
    interface Tunnel0
    ip address 172.16.73.1 255.255.0.0
    no ip redirects
    ip mtu 1408
    ip nhrp authentication KildeDal
    ip nhrp map 172.16.100. <removed>
    ip nhrp map multicast <removed>
    ip nhrp map 172.16.64.15 <removed>
    ip nhrp map multicast <removed>
    ip nhrp map 172.16.28.15 <removed>
    ip nhrp map multicast <removed>
    ip nhrp network-id 100
    ip nhrp holdtime 300
    ip nhrp nhs 172.16.100.15
    ip nhrp nhs 172.16.64.15
    ip nhrp nhs 172.16.28.15
    ip nhrp registration delay 5
    keepalive 10 3
    tunnel source <removed>
    tunnel mode gre multipoint
    tunnel key <removed>
    tunnel protection ipsec profile DMVPN1
    !
    interface Loopback0
    ip address <removed> 255.255.255.255
    ip nat outside
    ip virtual-reassembly
    !
    interface Ethernet0
    description Inside
    ip address 10.73.1.2 255.255.255.0
    no ip redirects
    no ip proxy-arp
    ip nat inside
    ip virtual-reassembly
    no cdp enable
    standby 73 ip 10.73.1.1
    standby 73 preempt
    hold-queue 100 out
    !
    interface ATM0
    no ip address
    atm ilmi-keepalive
    dsl operating-mode auto
    pvc 0/38
    encapsulation aal5mux ppp dialer
    dialer pool-member 1
    !
    !
    interface FastEthernet1
    no ip address
    duplex auto
    speed auto
    !
    interface FastEthernet2
    no ip address
    duplex auto
    speed auto
    !
    interface FastEthernet3
    no ip address
    duplex auto
    speed auto
    !
    interface FastEthernet4
    no ip address
    duplex auto
    speed auto
    !
    interface Dialer0
    description Outside
    bandwidth 2048
    ip unnumbered Loopback0
    ip access-group inbound in
    no ip redirects
    no ip unreachables
    no ip proxy-arp
    ip nat outside
    ip inspect fw out
    ip virtual-reassembly
    encapsulation ppp
    dialer pool 1
    dialer-group 1
    no cdp enable
    ppp chap hostname <removed>@gotadsl.co.uk
    ppp chap password <removed>
    !
    router eigrp 1
    network 10.0.0.0
    network 172.16.0.0 0.15.255.255
    distribute-list eigrp-filter out Ethernet0
    no auto-summary
    !
    ip classless
    ip route 0.0.0.0 0.0.0.0 Dialer0
    !
    no ip http server
    no ip http secure-server
    !
    ip nat inside source list NATlist interface Loopback0 overload
    !
    !
    ip access-list standard eigrp-filter
    deny 10.0.254.100
    deny 10.0.254.64
    deny 10.0.254.28
    permit any
    !
    ip access-list extended NATlist
    deny ip 10.0.0.0 0.255.255.255 192.168.0.0 0.0.255.255
    deny ip 10.0.0.0 0.255.255.255 10.0.0.0 0.255.255.255
    deny ip 10.0.0.0 0.255.255.255 172.16.0.0 0.15.255.255
    permit ip 10.0.0.0 0.255.255.255 any
    ip access-list extended inbound
    deny ip host 213.208.101.25 any
    deny ip 10.0.0.0 0.255.255.255 any
    deny ip 192.168.0.0 0.0.255.255 any
    deny ip 172.16.0.0 0.15.255.255 any
    deny ip 127.0.0.0 0.255.255.255 any
    deny ip 224.0.0.0 15.255.255.255 any
    deny ip host 0.0.0.0 any
    deny icmp any any redirect
    permit icmp any host <removed>echo-reply
    permit icmp any host <removed> unreachable
    permit icmp any host <removed>time-exceeded
    permit tcp 213.129.10.0 0.0.0.255 host <removed> eq 22
    permit tcp 213.129.10.0 0.0.0.255 host <removed> eq telnet
    permit icmp 213.129.10.0 0.0.0.255 host <removed>
    permit gre any host <removed>
    permit esp any host <removed>
    permit udp any host <removed> eq isakmp
    permit udp host 192.38.7.240 eq ntp host <removed>
    logging trap debugging
    logging source-interface Ethernet0
    logging 10.100.3.11
    logging 10.73.1.30
    access-list 58 permit 10.0.0.0 0.255.255.255
    access-list 58 deny any
    dialer-list 1 protocol ip permit
    snmp-server community <removed> RO 58
    snmp-server community <removed> RW 58
    no cdp run
    !
    !
    control-plane
    !
    banner login ^C
    !================================================================
    !
    !Authorized access only
    !
    !This system is the property of Oticon Denmark + 45 3917 7100
    !
    !Disconnect IMMEDIATELY if you are not an authorised user !
    !
    !================================================================


    ^C
    !
    line con 0
    no modem enable
    transport preferred all
    transport output all
    line aux 0
    transport preferred all
    transport output all
    line vty 0 4
    transport preferred all
    transport input telnet ssh
    transport output all
    !
    scheduler max-task-time 5000
    scheduler process-watchdog reload
    scheduler interval 500
    ntp clock-period 17180010
    ntp server 10.100.1.15 prefer
    ntp server 192.38.7.240
    end


    Hope someone can help. I have bought 45 more of these which need to be
    deployed.


    Regards,

    Colin J Fakley.
     
    Colin Fakley, Apr 7, 2005
    #1
    1. Advertising

  2. Colin Fakley

    jt Guest

    Timeout issue perhaps ?
    Try a "deb dia " and "deb dia pack". This should enable you to see the
    packets triggering un/interesting traffic,
    upon connection drop you should see the reason.
    Without going too deep in your cfg, there's apparently no
    timeout set which defaults IMHO to 120 seconds ?

    jt


    "Colin Fakley" <> schrieb im Newsbeitrag
    news:...
    > Hi,
    >
    > I am having a strange problem with a batch of 837 routers. I have
    > currently deployed 5 of these to some of our remote offices dotted
    > around the UK. They are all running IOS Version 12.3(11)T3.
    >
    > The ADSL ISP is Nildram.
    >
    > The problem I am having is that the router drops the ADSL connection
    > for no reason. This seems quite random, although it does happen with
    > more frequancy when no traffic on the line.
    >
    > We use these routers to create IPSec tunnels to 3 hub offices in
    > Denmark, the US, and Australia. Dynamic tunnels can also be opened
    > between any other of our IPSec enabled sites. Such as one UK site to
    > another.
    >
    > Here is my config...
    > Building configuration...
    >
    > Current configuration : 29027 bytes
    > !
    > version 12.3
    > service nagle
    > no service pad
    > service tcp-keepalives-in
    > service tcp-keepalives-out
    > service timestamps debug datetime msec localtime show-timezone
    > service timestamps log datetime msec localtime show-timezone
    > service password-encryption
    > service sequence-numbers
    > !
    > hostname Mai-test
    > !
    > boot-start-marker
    > boot-end-marker
    > !
    > memory-size iomem 5
    > !
    > username <removed>privilege 15 secret 5 <removed>
    > username <removed>privilege 7 secret 5 <removed>
    > username <removed> privilege 15 secret 5 <removed>
    > username <removed>privilege 15 secret 5 <removed>
    > clock timezone UK 0
    > clock summer-time UK recurring last Sun Mar 2:00 last Sun Oct 3:00
    > aaa new-model
    > !
    > !
    > aaa authentication banner ^C
    >
    > Welcome to this router.
    >
    > UNAUTHORIZED ACCESS PROHIBITED
    >
    > ^C
    > aaa authentication fail-message ^C
    >
    > Failed login. Try again.
    >
    > ^C
    > aaa authentication login default local-case
    > aaa authorization console
    > aaa authorization exec default local
    > aaa session-id common
    > ip subnet-zero
    > no ip source-route
    > no ip gratuitous-arps
    > !
    > !
    > no ip dhcp conflict logging
    > ip dhcp excluded-address 10.73.1.0 10.73.1.29
    > !
    > ip dhcp pool Mai-test
    > import all
    > network 10.73.1.0 255.255.255.0
    > dns-server 10.100.3.1 10.98.3.1
    > netbios-name-server 10.100.3.1 10.98.3.1
    > netbios-node-type h-node
    > default-router 10.73.1.1
    > lease 0 8
    > !
    > !
    > ip telnet source-interface Ethernet0
    > ip cef
    > ip tftp source-interface Ethernet0
    > ip domain name oticon.dk
    > ip host ipseccert 10.100.128.12
    > ip host ipsec_AU 10.28.128.11
    > ip host ipsec_US 10.64.128.11
    > ip host ipsec_DK 10.100.128.12
    > ip name-server 213.129.10.4
    > no ip bootp server
    > ip multicast-routing
    > ip inspect max-incomplete low 500
    > ip inspect max-incomplete high 1100
    > ip inspect one-minute low 500
    > ip inspect one-minute high 1100
    > ip inspect name fw cuseeme
    > ip inspect name fw fragment maximum 256 timeout 1
    > ip inspect name fw ftp
    > ip inspect name fw h323
    > ip inspect name fw http
    > ip inspect name fw icmp
    > ip inspect name fw netshow
    > ip inspect name fw rcmd
    > ip inspect name fw realaudio
    > ip inspect name fw rtsp
    > ip inspect name fw sip
    > ip inspect name fw skinny
    > ip inspect name fw smtp
    > ip inspect name fw sqlnet
    > ip inspect name fw streamworks
    > ip inspect name fw tcp
    > ip inspect name fw tftp
    > ip inspect name fw udp
    > ip inspect name fw vdolive
    > ip ips po max-events 100
    > ip ssh time-out 60
    > ip ssh authentication-retries 2
    > no ftp-server write-enable
    > !
    > crypto pki trustpoint ipsec_AU
    > enrollment retry count 5
    > enrollment retry period 2
    > enrollment mode ra
    > enrollment url http://ipsec_AU:80/certsrv/mscep/mscep.dll
    > usage ike
    > serial-number
    > ip-address 10.73.1.1
    > subject-name OU=DK O=DK
    > crl query ldap://ipsec_AU
    > revocation-check none
    > auto-enroll
    > !
    > crypto pki trustpoint ipsec_DK
    > enrollment retry count 5
    > enrollment retry period 2
    > enrollment mode ra
    > enrollment url http://ipsec_DK:80/certsrv/mscep/mscep.dll
    > usage ike
    > serial-number
    > ip-address 10.73.1.1
    > subject-name OU=DK O=DK
    > crl query ldap://ipsec_DK
    > revocation-check none
    > auto-enroll
    > !
    > crypto pki trustpoint ipsec_US
    > enrollment retry count 5
    > enrollment retry period 2
    > enrollment mode ra
    > enrollment url http://ipsec_US:80/certsrv/mscep/mscep.dll
    > usage ike
    > serial-number
    > ip-address 10.73.1.1
    > subject-name OU=DK O=DK
    > crl query ldap://ipsec_US
    > revocation-check none
    > auto-enroll
    > !
    > !
    > crypto pki certificate chain ipsec_AU
    > certificate 14C4E3CA0000000000DB
    > <removed>
    > quit
    > certificate ca 1E6063DC000000000034
    > <removed>
    > quit
    > crypto pki certificate chain ipsec_DK
    > certificate 453D063300000000016C
    > <removed>
    > quit
    > certificate ca 15920DE2000000000016
    > <removed>
    > quit
    > crypto pki certificate chain ipsec_US
    > certificate 79FCF1BD00000000003A
    > <removed>
    > quit
    > certificate ca 15A57BCF000000000033
    > <removed>
    > quit
    > no crypto engine onboard 0
    > !
    > !
    > !
    > crypto isakmp policy 10
    > encr 3des
    > group 2
    > crypto isakmp invalid-spi-recovery
    > crypto isakmp keepalive 30 10
    > !
    > !
    > crypto ipsec transform-set 3DES esp-3des esp-sha-hmac
    > mode transport
    > no crypto ipsec nat-transparency udp-encaps
    > !
    > crypto ipsec profile DMVPN1
    > set transform-set 3DES
    > !
    > !
    > !
    > !
    > interface Tunnel0
    > ip address 172.16.73.1 255.255.0.0
    > no ip redirects
    > ip mtu 1408
    > ip nhrp authentication KildeDal
    > ip nhrp map 172.16.100. <removed>
    > ip nhrp map multicast <removed>
    > ip nhrp map 172.16.64.15 <removed>
    > ip nhrp map multicast <removed>
    > ip nhrp map 172.16.28.15 <removed>
    > ip nhrp map multicast <removed>
    > ip nhrp network-id 100
    > ip nhrp holdtime 300
    > ip nhrp nhs 172.16.100.15
    > ip nhrp nhs 172.16.64.15
    > ip nhrp nhs 172.16.28.15
    > ip nhrp registration delay 5
    > keepalive 10 3
    > tunnel source <removed>
    > tunnel mode gre multipoint
    > tunnel key <removed>
    > tunnel protection ipsec profile DMVPN1
    > !
    > interface Loopback0
    > ip address <removed> 255.255.255.255
    > ip nat outside
    > ip virtual-reassembly
    > !
    > interface Ethernet0
    > description Inside
    > ip address 10.73.1.2 255.255.255.0
    > no ip redirects
    > no ip proxy-arp
    > ip nat inside
    > ip virtual-reassembly
    > no cdp enable
    > standby 73 ip 10.73.1.1
    > standby 73 preempt
    > hold-queue 100 out
    > !
    > interface ATM0
    > no ip address
    > atm ilmi-keepalive
    > dsl operating-mode auto
    > pvc 0/38
    > encapsulation aal5mux ppp dialer
    > dialer pool-member 1
    > !
    > !
    > interface FastEthernet1
    > no ip address
    > duplex auto
    > speed auto
    > !
    > interface FastEthernet2
    > no ip address
    > duplex auto
    > speed auto
    > !
    > interface FastEthernet3
    > no ip address
    > duplex auto
    > speed auto
    > !
    > interface FastEthernet4
    > no ip address
    > duplex auto
    > speed auto
    > !
    > interface Dialer0
    > description Outside
    > bandwidth 2048
    > ip unnumbered Loopback0
    > ip access-group inbound in
    > no ip redirects
    > no ip unreachables
    > no ip proxy-arp
    > ip nat outside
    > ip inspect fw out
    > ip virtual-reassembly
    > encapsulation ppp
    > dialer pool 1
    > dialer-group 1
    > no cdp enable
    > ppp chap hostname <removed>@gotadsl.co.uk
    > ppp chap password <removed>
    > !
    > router eigrp 1
    > network 10.0.0.0
    > network 172.16.0.0 0.15.255.255
    > distribute-list eigrp-filter out Ethernet0
    > no auto-summary
    > !
    > ip classless
    > ip route 0.0.0.0 0.0.0.0 Dialer0
    > !
    > no ip http server
    > no ip http secure-server
    > !
    > ip nat inside source list NATlist interface Loopback0 overload
    > !
    > !
    > ip access-list standard eigrp-filter
    > deny 10.0.254.100
    > deny 10.0.254.64
    > deny 10.0.254.28
    > permit any
    > !
    > ip access-list extended NATlist
    > deny ip 10.0.0.0 0.255.255.255 192.168.0.0 0.0.255.255
    > deny ip 10.0.0.0 0.255.255.255 10.0.0.0 0.255.255.255
    > deny ip 10.0.0.0 0.255.255.255 172.16.0.0 0.15.255.255
    > permit ip 10.0.0.0 0.255.255.255 any
    > ip access-list extended inbound
    > deny ip host 213.208.101.25 any
    > deny ip 10.0.0.0 0.255.255.255 any
    > deny ip 192.168.0.0 0.0.255.255 any
    > deny ip 172.16.0.0 0.15.255.255 any
    > deny ip 127.0.0.0 0.255.255.255 any
    > deny ip 224.0.0.0 15.255.255.255 any
    > deny ip host 0.0.0.0 any
    > deny icmp any any redirect
    > permit icmp any host <removed>echo-reply
    > permit icmp any host <removed> unreachable
    > permit icmp any host <removed>time-exceeded
    > permit tcp 213.129.10.0 0.0.0.255 host <removed> eq 22
    > permit tcp 213.129.10.0 0.0.0.255 host <removed> eq telnet
    > permit icmp 213.129.10.0 0.0.0.255 host <removed>
    > permit gre any host <removed>
    > permit esp any host <removed>
    > permit udp any host <removed> eq isakmp
    > permit udp host 192.38.7.240 eq ntp host <removed>
    > logging trap debugging
    > logging source-interface Ethernet0
    > logging 10.100.3.11
    > logging 10.73.1.30
    > access-list 58 permit 10.0.0.0 0.255.255.255
    > access-list 58 deny any
    > dialer-list 1 protocol ip permit
    > snmp-server community <removed> RO 58
    > snmp-server community <removed> RW 58
    > no cdp run
    > !
    > !
    > control-plane
    > !
    > banner login ^C
    > !================================================================
    > !
    > !Authorized access only
    > !
    > !This system is the property of Oticon Denmark + 45 3917 7100
    > !
    > !Disconnect IMMEDIATELY if you are not an authorised user !
    > !
    > !================================================================
    >
    >
    > ^C
    > !
    > line con 0
    > no modem enable
    > transport preferred all
    > transport output all
    > line aux 0
    > transport preferred all
    > transport output all
    > line vty 0 4
    > transport preferred all
    > transport input telnet ssh
    > transport output all
    > !
    > scheduler max-task-time 5000
    > scheduler process-watchdog reload
    > scheduler interval 500
    > ntp clock-period 17180010
    > ntp server 10.100.1.15 prefer
    > ntp server 192.38.7.240
    > end
    >
    >
    > Hope someone can help. I have bought 45 more of these which need to be
    > deployed.
    >
    >
    > Regards,
    >
    > Colin J Fakley.
    >
     
    jt, Apr 7, 2005
    #2
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  3. Colin Fakley

    Morkin Guest

    Ok, thanks.

    I am monitoring packet triggering on the 837 I am testing here.
    Hopefully I will see when it goes down.

    I have also modified two of the routers I have in the field to include
    "dialer persistent" for the Dialer0 interface.

    I will see how that goes.

    Colin J Fakley.
     
    Morkin, Apr 7, 2005
    #3
  4. Colin Fakley

    Bob Goddard Guest

    Morkin wrote:

    > Ok, thanks.
    >
    > I am monitoring packet triggering on the 837 I am testing here.
    > Hopefully I will see when it goes down.
    >
    > I have also modified two of the routers I have in the field to include
    > "dialer persistent" for the Dialer0 interface.
    >
    > I will see how that goes.


    Why not "dialer idle-timeout 0" ?


    B
     
    Bob Goddard, Apr 7, 2005
    #4
  5. Colin Fakley

    BradReeseCom Guest

    BradReeseCom, Apr 7, 2005
    #5
  6. Colin Fakley

    Morkin Guest

    > Why not "dialer idle-timeout 0" ?

    Thanks. I will give it a try.
     
    Morkin, Apr 7, 2005
    #6
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