Bypassing Router's DNS Settings

Is there a way to bypass my ISP provided CPE/router's DNS settings? I'd like to use OpenDNS but I am unable to access the administrator acount of the CPE. I tried logging in using the default passwords (admin/admin, admin/1234, etc) to no avail.

I found out later that the admin password is generated using a generator where you input the CPE's MAC address. I tried emailing the manufacturer of the CPE (Huawei, the CPE is Huawei BM625) and my ISP but they aren't replying. I also saw similar queries (lots of them!) at Huawei's forums, without a single reply.

So as a last resort, I'd like to know a way to bypass the CPE's DNS settings.

My subscription is for a WiMAX service. I'm using Windows 7 and have already set the DNS settings for the Local Area Connection:

However I still am not seeing the "You are already using OpenDNS" text at OpenDNS's site.

And when explicitly using the OpenDNS servers I still seem to get 208.69.38.150 rather than the expected 208.69.38.160:

nslookup www.opendns.com. 208.67.222.222

  Server: resolver1.opendns.com
  Address: 208.67.222.222 

  Non-authoritative answer:
  Name: www.opendns.com
  Address: 208.69.38.150