Forwarding port behind NAT and FW to router

RouterOS Beginner Basics
1

Hi members

I need first time your support.

I have a:

  1. static IP
  2. basic router from DeutscheTelekom, bridge mode (no NAT, no Firewall)
  3. mikrotik CRS326 24G port set up , there is a NAT and Firewall
  4. PoE switch with 2 cameras

[DeutscheTel.Router] <—> [Mikrotik] [NAT + Firewall] <— [PoE Switch] <— Camera

In few days will come a technician and I urgently need support:

How to set up forwarding the PoE switch to the DeutscheTelekom router throught Mikrotik NAT (I want to leave active Firewall so nobody can access the cameras outside the internet)

Thank you

2

Please state MT model.. A switch is not a router?? Although RoS lets one do so, it most cases its a bad idea.

3

Hi. I updated the topic. It’s a Mkt CRS 326 24G

4

Check these two recent threads:
http://forum.mikrotik.com/t/likely-hitting-software-based-routing-limits/183202/1
http://forum.mikrotik.com/t/using-crs326-as-a-switch/183204/1

The CRS326 might be not a suitable device (it depends on your internet connection speed of course[1[) for the role as “main” router that you intend to use it for., as while a very fast device for switching it is slow in routing.



[1[ I would say that is just fine for up to 200 Mbps or so, but on faster connection it will become a bottleneck.