I am attempting to install a third party SSL cert (GoDaddy) to properly secure the external interface of my 1811 ISR so that I can implement SSL VPN. I have tried using SDM 2.5, but that doesn't appear to be working. I am familiar with doing this on a Cisco 3005 Concentrator, but I'm not aware of how to install an intermediate cert on the 1811 (or if it's even possible), in order to properly have the GoDaddy cert properly imported and used for SSL VPN.
I have gone through the CSR process and have the initial cert from them generated and have imported it, but it never appears to be identified correctly if I browse to the external interface on the router. The router always defaults to its self-signed cert.
Any help or pointers would be greatly appreciated.