Can we have specific DNS setting for WAN and 4G

Dear All,

I have a Routeur 4G LTE Nighthawk REF R7100LG with Failover settinf from ISP1 FTTLA to ISP2 4G.

Firmware Version : V1.0.0.42_1.0.6

I have the following setting.

WAN Acces from Fiber ISP1 :

DNS set with Open DNS with 

Primary 208.67.222.222 ·

Secondaty 208.67.220.220

WAN Acces from 4G ISP2 is impossible de go to internet with my French ISP :

Bouygues Telecom 4G do not accept other DNS.

Any chanche to have 2 specific DNS Setting.

It will be nice to have in the next firmware release

• DNS Setting primary for ISP1
• DNS Setting secondary for ISP1
• DNS Setting primary for ISP2
• DNS Setting secondary for ISP2

If we do not have this setting, in France it will be impossible to run with OpenDNS on ISP1 as OpenDNS is not allowed on 4G sim card.

Many thanks in advance

Olivier