Hallo !!!
I have two RouterBOARD
RB951 and RB2011UAS
RB951 v5.19
ether1 = Internet
ether2 = to RB2011
ether3 = Server (Web, Mail, … Server) ← domain.com
RB2011 v5.20
ether1 = PC1
ether2 = PC2
ether3 = PC3
wlan = PC1, PC2, PC3 …
Computer courses are added to the RB951 using domain.com
web, etc. working properly
But the computer attached to the RB2011 domain.com not work
NAT tried different variants of one worked but the problem was that I could not connect to other sites
**Links who helped fix the problem
http://forum.mikrotik.com/t/cant-configure-nat-rule-for-webserver/62603/1