Mikrotik Port Forwarding Help Needed

Hello There,
Good Day!
I’m using web based remote monitoring device at my top hill AP site. I want to access & monitor this remotely out from my network over WAN from anywhere while on move. I setup my modem to port forwarding and its working fine, but every time i access through WAN every incoming request from shows the routerboard’s login webfig page it means its forwarding request fine, but when i setup firewall-NAT setting on linked RB450G to internet modem to access direct for attached web monitoring device and brows for the linked DYNDNS linked address it shows an error message with 502 bad gateway. Any help on this will be heartily appreciated. Thanks.
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The DST address in your DST-NAT rule needs to be the IP address assigned to the outside interface on your Mikrotik. It looks like you have it assigned to use the IP address of the modem. Because your already going through one NAT gateway that IP doesn’t exist on the Mikrotik.

I don’t use any dst address…I leave it blank. You may also need a Hairpin to make it work from inside?

True the dest address can be left blank if there is only one IP on the incoming interface in question. If one needed to do some form of one-to-one NAT with multiple incoming IP addresses a source address would be needed.

Hello there! I am so sorry for delayed reply as i was very busy to work at AP site for its maintenance and thanks for your valuable response to help me. I heartily appreciate. After working at AP site i am in need of help with the updated network topology to access remote monitoring device from NOC over WLAN/WAN installed at remote top hill AP site. Please review the new updated attachment and need help how to configure MT devices to connect this over private WLAN network from the NOC, as i tried to access it through MT bridging config, but didn’t access the device. Hope you will help me your best with detailed config guide to this. Thanks.
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