MikroTik L2TP/IPsec VPN server with two LAN classes

Mikrotik RB2011UiAS-RM

Interfaces:
ETH1=Gateway=Static IP (Notice: WAN IP in drawing it’s not true)
ETH2=DHCP
ETH6=No DHCP
ETH7=No DHCP
ETH10=No DHCP

Bridges:
No bridge at all (no interfaces, no ports)

Others:
Firewall ON, NAT ON (default)
All ETH ports have internet access, everything is OK.

Mikrotik VPN1 server:
Type PPTP on ETH6

Mikrotik VPN2 server:
Type L2TP/IPsec on ETH7

As you know, PPTP is vulnerable and not recomended.
In a few days I already see atempts of connecting to PPTP from IPs located in China.

QUESTION1:
Is there any possibility to have only one L2TP/IPsec VPN Mikrotik server and maybe for different port+user+pass+secret to give IP for ETH6 and ETH7 in their respective classes? And if yes, howto?
Any other sugestions?
And btw, on Mikrotik wiki docs on VPN there is no word on firewall (of course I needed to open ports in order to VPN to work).
I initialy thought Mikrotik take care of itself on activating VPN server.

QUESTION2:
I want WebFig, Winbox to work only from LAN side. How do I do that?
BT-Mtik.png

I answer to the second question.
Winbox is working not only from lan. It works anywhere. Open IP-services-ip service list and activate “winbox port 8291”. Other make unactive.
If you want to use webfig then activate www port 80. If you need access only from lan in “available from” field write your local network, for example 192.168.1.0/24. I use l2tp/ipsec to my mikrotik and then I have access to local from anywhere.