Is it possible that the developers of the firmware of the edgemax router can include a feature in the next software version that would save alot of us time on cofiguration of dual wan setups? So here is the issue, you have 2 providers 1 is your primary IE comcast and you have a backup DSL line IE centurylink. The issue at hand, you cannot use comcast dns servers when your on the centurylink backup dsl line and vice versa nor should you. I do realize there is a way to configure DNS forwarding options to fix this problem but let me explain, that is a headache because of the video CDN servers out there on the internet now for CDN content like streaming netflix, directv on demand etc etc. Yes i can configure my router to use the system name server to like Level 3 4.2.2.3 or open dns but when it comes to CDN issues and video on demand streaming and hanging you have to manually configure static DNS entries for your primary ISP for example set service dns forwarding options server=/directv.com/@75.75.75.75 don't quote me word for word on that config but you get the idea. So whats the solution instead of figuring out how to use the load balancing feature and have a true failover WAN connection that will use proper ISP DNS servers and so you don't have to worry about configuring tons of CDN entries in your dnsmasq.conf file? I recommend the edgemax team setup the option so that when your primary ISP line goes down it changes the following:
ethernet eth0 dhcp-options name server no-update - WAN 1 - Line that is down
ethernet eth0 dhcp-options name server update - WAN 2 - Backup DSL line
when WAN 1 comes back up, the following happens:
ethernet eth0 dhcp-options name server update - WAN 1 - Primary ISP - Back online
ethernet eth0 dhcp-options name server no-update - WAN 2 - Backup DSL line
that would be the best idea, now i am not stating i know the best way to do this but cant you have some type of SLA or Tracking script or something in the config that tracks what WAN interface is up and pull the DHCP DNS servers as appropriate to the WAN connection that is online? We cant have them all pull because in voyetta it will use all 4 name servers 2 from WAN 1 and 2 for WAN 2 so it has to be a way to stop pulling DNS from one connection while the other is down and vice versa. If the edge router team could make this happen in the GUI or CLI somehow that would be great. Otherwise we all have to manipulate the DNS files etc etc