I have a NAT rule to redirect all DNS requests, on edge router.
like this:
http://wiki.mikrotik.com/wiki/Force_users_to_use_specified_DNS_server
redirect is to its own IP address-whrere running Mikrotik DNS.
If customer has WiFi router, which on LAN side via DHCP server assignt to computer IP address this WiFi router as IP DNS server, then that computer can’t resolve www.google.com, www.yahoo.com and all other Google services.
If computer has IP regular DNS server , our internal or free DNS servers, then google services working ok.
How to resolve this, without changing configuraton on client wifi routers?
Thanx.