Routing with 2 Mikrotik and 1 NAT

RouterOS Beginner Basics
1

Hello all,

I have 2 Mikrotik 6.41.2 routers in my network and I have setup static routes to avoid double NAT
but I can’t make it work.
I also checked this post
http://forum.mikrotik.com/t/avoiding-double-nat-with-multiple-routers/49926/1

I attach my network diagram to make it easier.
network.jpg
Main Router (1st) is working OK, no firewall rules (for now), ports are bridged
I have one Nat rule and I added the following route for the second router :
/ip route add dst-address=192.168.170.0/23 gateway=172.20.0.8

On the second router I don’t have any NAT rule, no dhcp, dns is configured, no firewall rules (for now)
and my route is :
/ip route add dst-address=0.0.0.0/0 gateway=172.20.0.1

PC’s in Offices LAN use only static ip’s so no need for dhcp server.
2cd router have internet but pc’s not.

Need some advice for what Im doing wrong..

thank you

2

Pc’s in office lan, which are statically configured, need to define R2 as their gateway.

Is that set?

3

Thanks for the replay.

All PC’s in Offices Network have
IP’s 192.168.170.xx
gateway 192.168.170.1
dns 8.8.8.8 - 8.8.4.4

Thanks

4

Check NAT rules on R1. It’ll need some also for IP addresses 192.168.170.x …

5

Hi,

NAT rule on R1 is :
0 ;;; WAN
chain=srcnat action=masquerade src-address=172.20.0.0/20
out-interface=ether1-Wan log=no log-prefix=“”

so I need to add one more for the 192.168.170.0/23 network ?

thanks

6

I would add one more …

7

ok,

I will try it and I’ll post results…

8

simply don’t specify source address in the nat rule

9

Thanks for the suggestion.

It’s Working now.