Ooops! I don't have E5186 with me, using B315s, it has a similar firmware. Answer is no. You can't do it with B315s. What you see, there are options related to Ethernet RJ45 WAN interface, not a cellular connection. For cellular routing there is no manual DNS option. Huawei routers are crippled. If you can't setup DNS options on your device, you need another home router, put its IP address in Huawei DMZ option and connect one of Huawei LAN ports to the router's WAN port by cable. It will pass all Internet traffic to the 'real' router, so you will be able to configure this router according to your needs.Any one that can advise me what to change on the Huawei E5186 with Telkoms LTE-A to allow for OpenDNS? (like unotelly)
I have registered with unotelly and tried adding these PI's to the Huawei Router's Ethernet Settings: Primary and Secondary DNS Servers and it did not work.
Neither did https://www.opendns.com/welcome/
Please advise.