Any new Cisco ADSL router in the 800 series should support dynamic DNS updates to a DDNS provider like DynDNS.com This particular example is for a Cisco 877 ADSL router. NOTE: This particular config was done on a Cisco 877 ADSL / DSL router however its known to work on the Cisco 800 series DSL routers in general including the Cisco 827 Cisco 837 Cisco 877W as long as your Cisco IOS on the router supports the DDNS config You might want to check the Cisco ADSL config guide too . First off you are going to want to create an account with a DDNS Provider, this particular example uses DynDNS.org but others should work in the same way or at least in a similar way. In this example the dns name we want is mycisco.dyndns.org OK lets go Login to you router via console or telnet Go into Enable mode Then configure terminal (conf t) ip domain name dyndns.org ip name-server ip.ip.ip.ip ip name-server ip.ip.ip.ip ip ddns update method DynDNS HTTP add http://uname:passwd@members.dyndns.org/nic/u...
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