My customer proposed to buy Cisco 881G Router.
Our Requirements is to terminate both UMTS and DSL connections and is able to switch to UMTS if the DSL line fails.
And configure site to site DMVPN.
Can any one please suggest me about the UMTS configuration and how it will be switch to UMTS if the DSL line fails.
And site to site DMVPN should be up on UMTS if DSL failes visa versa.
the 3G UMTS interface can act as a backup for primary DSL interface
the use of the 3G interface can be done with classid DDR dial on demand routing
>> And site to site DMVPN should be up on UMTS if DSL failes visa versa.
This point is more difficult to achieve, it may be easier to build a second DMVPN cloud using the UMTS links unless you have a single provider for both the DSL and the UMTS link you will have different public IP addresses
look for HWIC 3G configuration guide in CCO it should help
Hope to help
added link to mentioned configuration guide