Config DDNS ON CISCO 871, 877, 887,857 (no-ip)

ip domain lookup ------------> Avilita name resolution

ip name-server 8.8.8.8 ---------> add a DNS server 1º

ip name-server 8.8.4.4 ----------> add a DNS server 2º

ip ddns update method no-ip --> Create a pool with the "no-ip" name

HTTP ------->define the update mode

add http://username:password@dynupdate.no-ip.com/nic/update?hostname=domainname.no-ip.org --->user and password to update DDNS account

interval maximum 0 0 5 0 --->define how often will send the upgrade of public IP

interface fa 4     ------------> enters the WAN interface

ip ddns update hostname midominio.no-ip.org   ---> indicates the domain you must update

ip ddns update no-ip ------>indicates the pool you created earlier

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Example DDNS:

ip domain lookup
ip name-server 8.8.8.8
ip name-server 8.8.4.4

ip ddns update method no-ip
HTTP
add http://username:password@dynupdate.no-ip.com/nic/update?hostname=domain.no-ip.org
interval maximum 0 0 5 0

interface fa 4
ip ddns update hostnamedomain.no-ip.org
ip ddns update no-ip

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Troubleshooting

terminal monitor
debug ip ddns update

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-For this written the "?" e have to write CTRL + V and then enter "?"

-887V equipment as containing adsl modem has to be applied on the interface

-The cisco asa configuration is unfortunately not possible, since HTTP is considered an insecure method
interface Dialer1