just FYI and for support to this community, i just configured the DDNS update with my account DynDNS with the following config and it works very very good!. ip ddns update method dyndns HTTP   add http:// : @members.dyndns.org/nic/update?system=dyndns&hostname= &myip= interval maximum 1 0 0 0 Thanks a lot for all the support received in this discussion! Bye, Riccardo Margiotta ... View more

Ok, thank you guys for your responsed, they solved my problems and dubs with DDNS on Cisco 1841. let's try with DynDNS. Thanks, RIccardo ... View more

You're right, i'm sorry.. the debug loggins was turned off.. RA1-ITSOVI-1-1#conf t Enter configuration commands, one per line.  End with CNTL/Z. RA1-ITSOVI-1-1(config)#int dialer0 RA1-ITSOVI-1-1(config-if)#shut *Aug 16 13:12:58.483: %DIALER-6-UNBIND: Interface Vi1 unbound from profile Di0 00:01:53: Di0 DDR: dialer shutdown complete 00:01:53: DYNUPD: SWIF goingdown 'Dialer0' 00:01:53: DYNDNSUPD: Removing DNS mapping for rmsi.no-ip.biz <=> 79.20.166.102 00:01:53: HTTPDNS: Update remove called for rmsi.no-ip.biz <=> 79.20.166.102 *Aug 16 13:12:58.487: %LINK-3-UPDOWN: Interface Virtual-Access1, changed state to down 00:01:53: DYNUPD: SWIF goingdown 'Virtual-Access1' *Aug 16 13:12:59.499: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1, changed state to down *Aug 16 13:13:01.903: %DHCPD-4-PING_CONFLICT: DHCP address conflict:  server pinged 10.200.36.11. *Aug 16 13:13:02.903: %DHCPD-4-PING_CONFLICT: DHCP address conflict:  server pinged 10.200.36.12. *Aug 16 13:13:20.703: %DIALER-6-BIND: Interface Vi1 bound to profile Di0 *Aug 16 13:13:20.707: %LINK-3-UPDOWN: Interface Virtual-Access1, changed state to up *Aug 16 13:13:22.299: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1, changed state to up 00:02:16: DYNUPD: SWIF comingup 'Virtual-Access1' 00:02:19: DYNDNSUPD: Adding DNS mapping for rmsi.no-ip.biz <=> 79.11.140.56 00:02:19: HTTPDNS: Update add called for rmsi.no-ip.biz <=> 79.11.140.56 00:02:19: HTTPDNSUPD: Session ID = 0x3 00:02:19: HTTPDNSUPD: URL = ' http://rikixx90: @dynupdate.no-ip.com/nic/update?hostname=rmsi.no-ip.biz&myip= @dynupdate.no-ip.com /nic/update?hostname=rmsi.no-ip.biz&myip=' 00:02:19: HTTPDNSUPD: Sending request 00:02:20: HTTPDNSUPD: Response for update rmsi.no-ip.biz <=> 79.11.140.56 00:02:20: HTTPDNSUPD: DATA START good 79.11.140.56 00:02:20: HTTPDNSUPD: DATA END, Status is Response data recieved, successfully 00:02:20: HTTPDNSUPD: Call returned SUCCESS for update rmsi.no-ip.biz <=> 79.11.140.56 00:02:20: DYNDNSUPD: Another update completed (outstanding=0, total=0) 00:02:20: HTTPDNSUPD: Clearing all session 3 info RA1-ITSOVI-1-1(config-if)# 00:02:53: DYNUPD: SWIF goingdown 'Dialer0' 00:02:53: DYNDNSUPD: Removing DNS mapping for rmsi.no-ip.biz <=> 79.11.140.56 00:02:53: HTTPDNS: Update remove called for rmsi.no-ip.biz <=> 79.11.140.56 *Aug 16 13:14:00.483: %LINK-5-CHANGED: Interface Dialer0, changed state to administratively down RA1-ITSOVI-1-1(config-if)#no shut *Aug 16 13:15:23.583: %DIALER-6-UNBIND: Interface Vi1 unbound from profile Di0 00:04:18: DYNUPD: SWIF comingup 'Dialer0' *Aug 16 13:15:23.587: %LINK-3-UPDOWN: Interface Virtual-Access1, changed state to down 00:04:18: DYNUPD: SWIF goingdown 'Virtual-Access1' *Aug 16 13:15:24.591: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1, changed state to down *Aug 16 13:15:25.583: %LINK-3-UPDOWN: Interface Dialer0, changed state to up 00:04:20: DYNUPD: SWIF comingup 'Dialer0' *Aug 16 13:15:45.915: %DIALER-6-BIND: Interface Vi1 bound to profile Di0 *Aug 16 13:15:45.919: %LINK-3-UPDOWN: Interface Virtual-Access1, changed state to up *Aug 16 13:15:47.711: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1, changed state to up 00:04:42: DYNUPD: SWIF comingup 'Virtual-Access1' 00:04:44: DYNDNSUPD: Adding DNS mapping for rmsi.no-ip.biz <=> 79.16.153.108 00:04:44: HTTPDNS: Update add called for rmsi.no-ip.biz <=> 79.16.153.108 00:04:44: HTTPDNSUPD: Session ID = 0x4 00:04:44: HTTPDNSUPD: URL = ' http://rikixx90: @dynupdate.no-ip.com/nic/update?hostname=rmsi.no-ip.biz&myip= @dynupdate.no-ip.com /nic/update?hostname=rmsi.no-ip.biz&myip=' 00:04:44: HTTPDNSUPD: Sending request 00:04:54: HTTPDNSUPD: Response for update rmsi.no-ip.biz <=> 79.16.153.108 00:04:54: HTTPDNSUPD: DATA START good 79.16.153.108 00:04:54: HTTPDNSUPD: DATA END, Status is Response data recieved, successfully 00:04:54: HTTPDNSUPD: Call returned SUCCESS for update rmsi.no-ip.biz <=> 79.16.153.108 00:04:54: DYNDNSUPD: Another update completed (outstanding=0, total=0) 00:04:54: HTTPDNSUPD: Clearing all session 4 info i already checked on No-IP website and the new IP address is correctly updated, i tried many times and always it update it as well... i would like to try also with DynDNS (my preferred service) and check if also with this DDNS system it works fine. ... View more

Here you go: RA1-ITSOVI-1-1#term mon RA1-ITSOVI-1-1#conf t Enter configuration commands, one per line.  End with CNTL/Z. RA1-ITSOVI-1-1(config)#int dialer0 RA1-ITSOVI-1-1(config-if)#shut *Aug 16 12:31:28.875: %DIALER-6-UNBIND: Interface Vi1 unbound from profile Di0 00:16:32: Di0 DDR: dialer shutdown complete *Aug 16 12:31:28.879: %LINK-3-UPDOWN: Interface Virtual-Access1, changed state to down *Aug 16 12:31:29.891: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1, changed state to down *Aug 16 12:31:51.083: %DIALER-6-BIND: Interface Vi1 bound to profile Di0 *Aug 16 12:31:51.087: %LINK-3-UPDOWN: Interface Virtual-Access1, changed state to up *Aug 16 12:31:52.695: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1, changed state to up *Aug 16 12:32:30.891: %LINK-5-CHANGED: Interface Dialer0, changed state to administratively down RA1-ITSOVI-1-1(config-if)#no shut *Aug 16 12:32:41.367: %DIALER-6-UNBIND: Interface Vi1 unbound from profile Di0 *Aug 16 12:32:41.371: %LINK-3-UPDOWN: Interface Virtual-Access1, changed state to down *Aug 16 12:32:42.375: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1, changed state to down *Aug 16 12:32:43.363: %LINK-3-UPDOWN: Interface Dialer0, changed state to up *Aug 16 12:33:03.587: %DIALER-6-BIND: Interface Vi1 bound to profile Di0 *Aug 16 12:33:03.591: %LINK-3-UPDOWN: Interface Virtual-Access1, changed state to up *Aug 16 12:33:05.195: %LINEPROTO-5-UPDOWN: Line protocol on Interface Virtual-Access1, changed state to up After shut/no shut operation, the IP address on No-IP address has been updated correctly.... ... View more

Hello, Thanks for you quick response, below my config: Current configuration : 3077 bytes ! version 12.4 service timestamps debug uptime service timestamps log datetime msec service password-encryption ! hostname RA1-ITSOVI-1-1 ! boot-start-marker boot-end-marker ! logging buffered 4096 debugging ! no aaa new-model ip cef ! ! no ip dhcp use vrf connected ip dhcp excluded-address 10.200.36.1 10.200.36.10 ! ip dhcp pool RMSI_D_POOL    network 10.200.36.0 255.255.255.0    default-router 10.200.36.1    dns-server 10.200.36.1 8.8.8.8 85.37.17.7    domain-name RMSI.loc ! ip dhcp pool S_NAS1    host 10.200.36.7 255.255.255.0    hardware-address 0090.a9ba.f4da    client-name NAS1-RMSI-1-1 ! ip dhcp pool S_TimeCapsule    host 10.200.36.9 255.255.255.0    hardware-address 20c9.d013.7176    client-name TC1-RMSI-1-1 ! ip dhcp pool S_NAS2    host 10.200.36.8 255.255.255.0    hardware-address 0090.a9bb.1c22    client-name NAS2-RMSI-1-2 ! ip dhcp pool S_WS1    host 10.200.36.2 255.255.255.0    hardware-address 0025.6106.56c0    client-name WS1-RMSI-1-1 ! ip dhcp pool S_RA2    host 10.200.36.3 255.255.255.0    hardware-address a493.4cc2.99c8    default-router 10.200.36.1    domain-name gns.rmsi.loc    client-name RA2-ITSOVI-1-2 ! ! ip ftp source-interface FastEthernet0/0 ip ftp username cisco ip ftp password 7 ip domain list storage.rmsi.loc ip domain list gns.rmsi.loc ip domain name RMSI.loc ip host RA1-ITSOVI-1-1 10.200.36.1 ip host NAS2-RMSI-1-2 10.200.36.8 ip host NAS1-RMSI-1-1 10.200.36.7 ip host TC-RMSI-1-1 10.200.36.9 ip host WS1-ITSOVI-1-1 10.200.36.2 ip name-server 8.8.8.8 ip name-server 8.8.4.4 ip name-server 10.200.36.1 ip ddns update method no-ip HTTP   add http://rikixx90: @dynupdate.no-ip.com/nic/update?hostname=rmsi.no-ip.biz&myip= interval maximum 0 0 5 0 ! ! ! ! ! ! ! ! ! interface FastEthernet0/0 description LAN interface ip address 10.200.36.1 255.255.255.0 ip nat inside ip virtual-reassembly ip tcp adjust-mss 1452 duplex auto speed auto ! interface FastEthernet0/1 no ip address shutdown duplex auto speed auto ! interface ATM0/0/0 no ip address no ip mroute-cache load-interval 30 no atm ilmi-keepalive dsl operating-mode auto pvc 8/35   pppoe-client dial-pool-number 1 ! ! interface Dialer0 ip ddns update hostname rmsi.no-ip.biz ip ddns update no-ip ip address negotiated ip mtu 1492 ip nat outside ip virtual-reassembly encapsulation ppp dialer pool 1 ppp chap hostname aliceadsl ppp chap password 7 03055702050A20485D05 ! ip route 0.0.0.0 0.0.0.0 Dialer0 ! ip dns server ! ip http server no ip http secure-server ip nat inside source list 1 interface Dialer0 overload ! access-list 1 permit 10.200.36.0 0.0.0.255 ! ! ! ! control-plane ! !         banner motd ^Ctod ^ =================== "UNAUTHORIZED ACCESS IS STRICTLY PROHIBITED" =================== All Unauthorized access will be logged and prosecuted to the fullest extent of the law^C ! line con 0 exec-timeout 5 30 password 7 login line aux 0 line vty 0 4 password 7 login ! scheduler allocate 20000 1000 end ... View more