Gfrktyl

I am using a MikroTik Router. I have two networks: 192.168.1.0/24 and 192.168.3.0/24. One is on ether4 and the other on ether5. I am trying to set it up such that these networks can ping each other.

Here is the router's config:

/interface ethernet

set [ find default-name=ether4 ] name=4_FrontDept

set [ find default-name=ether5 ] name=5_IntDept

set [ find default-name=ether9 ] name=9_BellNet

set [ find default-name=ether10 ] name=10_Primus



/ip pool

add name=InternetDept ranges=192.168.3.11-192.168.3.254

add name=FrontDept ranges=192.168.1.11-192.168.1.254



/ip dhcp-server

add address-pool=InternetDept disabled=no interface=5_IntDept name=

    InternetDept

add address-pool=FrontDept disabled=no interface=4_FrontDept name=FrontDept



/port

set 0 name=serial0



/interface pppoe-client

add ac-name="" add-default-route=no allow=pap,chap,mschap1,mschap2 

    dial-on-demand=no disabled=no interface=9_BellNet keepalive-timeout=60 

    max-mru=1480 max-mtu=1480 mrru=1600 name=Bellnet_ISP password={PASSWORD} 

    profile=default service-name="" use-peer-dns=no user={USERNAME}

add ac-name="" add-default-route=no allow=pap,chap,mschap1,mschap2 

    dial-on-demand=no disabled=no interface=10_Primus keepalive-timeout=60 

    max-mru=1480 max-mtu=1480 mrru=1600 name=Primus_ISP password={PASSWORD} 

    profile=default service-name="" use-peer-dns=no user={USERNAME}



/ip address

add address=192.168.3.1/24 interface=5_IntDept network=192.168.3.0

add address=192.168.1.1/24 interface=4_FrontDept network=192.168.1.0



/ip dhcp-server network

add address=192.168.1.0/24 dns-server=8.8.8.8,8.8.4.4 gateway=192.168.1.1 

    netmask=24

add address=192.168.3.0/24 dns-server=8.8.8.8,8.8.4.4 gateway=192.168.3.1 

    netmask=24



/ip dns

set allow-remote-requests=yes servers=8.8.8.8,8.8.4.4



/ip firewall mangle

add action=mark-connection chain=prerouting connection-mark=no-mark 

    in-interface=Bellnet_ISP new-connection-mark=Bell

add action=mark-connection chain=prerouting connection-mark=no-mark 

    in-interface=Primus_ISP new-connection-mark=Primus

add action=mark-connection chain=prerouting connection-mark=no-mark 

    dst-address-type=!local in-interface=4_FrontDept new-connection-mark=Bell

add action=mark-connection chain=prerouting connection-mark=no-mark 

    dst-address-type=!local in-interface=5_IntDept new-connection-mark=Primus

add action=mark-routing chain=prerouting connection-mark=Primus 

    dst-address-type=!local new-routing-mark=RouteToPrimus

add action=mark-routing chain=prerouting connection-mark=Bell 

    dst-address-type=!local new-routing-mark=RouteToBell

add action=mark-routing chain=prerouting comment=

    "For DNS Server On MikroTik Will Fetch Through Primus Connection" 

    connection-mark=no-mark disabled=yes dst-port=53 new-routing-mark=

    RouteToPrimus protocol=udp



/ip firewall nat

add action=masquerade chain=srcnat connection-mark=Bell out-interface=

    Bellnet_ISP

add action=masquerade chain=srcnat connection-mark=Primus out-interface=

    Primus_ISP



/ip route

add distance=2 gateway=Primus_ISP routing-mark=RouteToPrimus

add distance=2 gateway=Bellnet_ISP routing-mark=RouteToBell

Tracert output from a 3.x computer to a 1.x one:

It looks like the "!local" filter does not work in your case, you are marking local packets to use ISP, so they get lost in the internet.
Try to add those mangle rules at the beginning of the mangle list.

/ip firewall mangle

add chain=prerouting dst-address=192.168.1.0/24 action=accept

add chain=prerouting dst-address=192.168.3.0/24 action=accept

That will force local packets to leave the mangle list, so they won't be marked.

i have same problem and solved it
i added some routes Dynamic, Active, Connected. on your case maybe like this

/ip route

add distance=1 dst-address=192.168.3.0/24 gateway=5_IntDept routing-mark=RouteToPrimus

add distance=1 dst-address=192.168.1.0/24 gateway=4_FrontDept routing-mark=RouteToBell

Correct me if i'm wrong