i just configured my Cisco 1841 to works as modem/router with my Italian ISP that provide only dynamic IP to end users, for this reason, in user to use VPN etc, i need to configure a Dynamic DNS service on it.
The configuration is the following:
Cisco 1841 with WIC-1ADSL - FE0/0 configured with my private network IP and FE0/1 shutted down because i don't need it...
if i configure DDNS service on my router, it updates DynDNS or No-IP with my private Fe0/0 IP address; i followed a lot of guides that explain how to configure a DDNS service with dynamic IP without success.
Can i have more support by you?...