Cisco 2800 configuration for DDNS

[Tang-Suan Tan]

Hi all:

My client has about 15 public IP addresses for their WAN network. All the internal network IP will be dynamic NAT to these 15 IP addresses to communicate to Internet. Since they are dynamically NAT, if anybody want to access my client internal network from outside internet, we usually advise them to use the whole range of IP.

The modem router used to dynamically NAT these 15 IPs are Cisco 2800.

I am thinking of the configuration using WAN DDNS on this Cisco 2800 for combine these 15 IPs to a DNS name by DDNS method (or any other way beside the DDNS) so that outside people can use one DNS name instead of whole range of IP. In case there is limitation of configuration of some outside people can use only one setting instead of one whole range of IP, they still can access by using one DNS name.

Can anybody provide the Cisco link on this information or your suggestion to implement this on Cisco 2800?

Many thanks!

Best regards,

TangSuan Tan 

[paolo bevilacqua]

You can use the search function to locate documentation links.

[Tang-Suan Tan]

Hi Paolo:

Thanks to your reply!

I have searched and obtained the Cisco 2800 router information but only can get the Cisco 2800 document with DDNA configuration on the internal LAN and not at the WAN interface.

Do you have any suggestion on this?

Many thanks!

best regards,

tangsuan