===== PCC Load Balancer on RouterOS v6 =====

  * On this example here is the case:
  - Eth1 connect to ISP1 (192.168.0.2/24)
  - Eth2 connect to ISP2 (192.168.1.2/24)
  - Eth3 connect to Local Network (10.1.1.1/24)
  * First, set the IP addresses:
  - If using DHCP, add them on IP > DHCP Client
  - If set as static, IP > Address List
  * Next, add the firewall rule:
  - Click on IP > Firewall > tab NAT

  Add (+)
  on tab General:
  Chain: srcnat
  Out Interface: ether1
  on tab Action:
  Action: masquerade
  Click OK
  
  Add (+)
  on tab General:
  Chain: srcnat
  Out Interface: ether2
  on tab Action:
  Action: masquerade
  Click OK

  * Set DHCP Server for the Local network.
  * Accept the connection, IP > Firewall > tab Mangle:

  Add (+)
  on tab General:
  Chain: prerouting
  Dst Address: 192.168.1.0/24 (The IP of ISP1)
  on tab Action:
  Action: accept
  Click OK

  Add (+)
  on tab General:
  Chain: prerouting
  Dst Address: 192.168.1.1/24 (The IP of ISP2)
  on tab Action:
  Action: accept
  Click OK

  Add (+)
  on tab General:
  Chain: prerouting
  Dst Address: 10.1.1.0/24 (The Local Network)
  on tab Action:
  Action: accept
  Click OK

  * Mark the connection, IP > Firewall > tab Mangle:

  Add (+)
  on tab General:
  Chain: prerouting
  In Interface: ether1
  on tab Action:
  Action: mark connection
  New Connection Mark: ISP1
  Passthrough (checked)
  Click OK

  Add (+)
  on tab General:
  Chain: prerouting
  In Interface: ether2
  on tab Action:
  Action: mark connection
  New Connection Mark: ISP2
  Passthrough (checked)
  Click OK

  * Set the PCC, on IP > Firewall > tab Mangle:

  Add (+)
  on tab General:
  Chain: prerouting
  In Interface: ether3
  Connection Mark: ISP1
  on tab Advance:
  Per Connection Classifier: both addresses | 2 / 0
  on tab Action:
  Action: mark connection
  New Connection Mark: ISP1
  Passthrough (checked)
  Click OK
  
  Add (+)
  on tab General:
  Chain: prerouting
  In Interface: ether3
  Connection Mark: ISP2
  on tab Advance:
  Per Connection Classifier: both addresses | 2 / 1
  on tab Action:
  Action: mark connection
  New Connection Mark: ISP2
  Passthrough (checked)
  Click OK

  * Set the PCC Mark Routing, on IP > Firewall > tab Mangle:

  Add (+)
  on tab General:
  Chain: prerouting
  In Interface: ether3
  Connection Mark: ISP1
  on tab Action:
  Action: mark routing
  New Routing Mark: to-ISP1
  Passthrough (unchecked)
  Click OK

  Add (+)
  on tab General:
  Chain: prerouting
  In Interface: ether3
  Connection Mark: ISP2
  on tab Action:
  Action: mark routing
  New Routing Mark: to-ISP2
  Passthrough (unchecked)
  Click OK

  * Set the Output Chain, on IP > Firewall > tab Mangle:

  Add (+)
  on tab General:
  Chain: output
  Connection Mark: ISP1
  on tab Action:
  Action: mark routing
  New Routing Mark: to-ISP1
  Passthrough (unchecked)
  Click OK

  Add (+)
  on tab General:
  Chain: output
  Connection Mark: ISP2
  on tab Action:
  Action: mark routing
  New Routing Mark: to-ISP2
  Passthrough (unchecked)
  Click OK

  * Set the Route, on IP > Route:

  Add (+)
  Dst Address: 0.0.0.0/0
  Gateway: 192.168.0.1
  Check Gateway: ping
  Routing Mark: to-ISP1
  Click Apply, OK

  Add (+)
  Dst Address: 0.0.0.0/0
  Gateway: 192.168.1.1
  Check Gateway: ping
  Routing Mark: to-ISP2
  Click Apply, OK

  * Set the Failover Route, on IP > Route:

  Add (+)
  Dst Address: 0.0.0.0/0
  Gateway: 192.168.1.1
  Distance: 2
  Check Gateway: ping
  Routing Mark: to-ISP1
  Click Apply, OK
  
  Add (+)
  Dst Address: 0.0.0.0/0
  Gateway: 192.168.0.1
  Distance: 2
  Check Gateway: ping
  Routing Mark: to-ISP2
  Click Apply, OK