Flags: X - disabled, I - invalid, D - dynamic
 0    chain=prerouting action=accept in-interface=ppp-out1 log=no log-prefix=""

 1    chain=prerouting action=accept in-interface=ppp-out2 log=no log-prefix=""

 2    chain=prerouting action=mark-connection
      new-connection-mark=Conn-PPP-OUT1->Bridge1 passthrough=yes
      dst-address=!192.168.88.10-192.168.88.254 connection-mark=no-mark
      in-interface=bridge1 per-connection-classifier=both-addresses:2/0 log=yes
      log-prefix="Conn-PPP-OUT1->B1"

 3 X  chain=prerouting action=mark-connection
      new-connection-mark=Conn-PPP-OUT2->Bridge1 passthrough=yes
      dst-address=!192.168.88.10-192.168.88.254 connection-mark=no-mark
      in-interface=bridge1 per-connection-classifier=both-addresses:2/1 log=yes
      log-prefix="Conn-PPP-OUT2->B1"

 4    chain=prerouting action=mark-connection
      new-connection-mark=Conn-PPP-OUT2->Bridge2 passthrough=yes
      dst-address=!192.168.77.10-192.168.77.254 connection-mark=no-mark
      in-interface=bridge2 per-connection-classifier=both-addresses:2/0 log=yes
      log-prefix="Conn-PPP-OUT2->B2"

 5 X  chain=prerouting action=mark-connection
      new-connection-mark=Conn-PPP-OUT1->Bridge2 passthrough=yes
      dst-address=!192.168.77.10-192.168.77.254 connection-mark=no-mark
      in-interface=bridge2 per-connection-classifier=both-addresses:2/1 log=yes
      log-prefix="Conn-PPP-OUT1->B2"

 6    chain=prerouting action=mark-routing new-routing-mark=B1 via PPP-OUT1
      passthrough=yes connection-mark=Conn-PPP-OUT1->Bridge1 log=yes
      log-prefix="B1 via PPP-OUT1"

 7 X  chain=prerouting action=mark-routing new-routing-mark=B1 via PPP-OUT2
      passthrough=yes connection-mark=Conn-PPP-OUT2->Bridge1 log=yes
      log-prefix="B1 via PPP-OUT2"

 8 X  chain=prerouting action=mark-routing new-routing-mark=B2 via PPP-OUT1
      passthrough=yes connection-mark=Conn-PPP-OUT1->Bridge2 log=yes
      log-prefix="B2 via PPP-OUT1"

 9    chain=prerouting action=mark-routing new-routing-mark=B2 via PPP-OUT2
      passthrough=yes connection-mark=Conn-PPP-OUT2->Bridge2 log=yes
      log-prefix="B2 via PPP-OUT2"

10 X  chain=prerouting action=mark-connection new-connection-mark=\
      passthrough=yes connection-mark=no-mark in-interface=ppp-out1 log=no
      log-prefix=""

11 X  chain=prerouting action=mark-connection new-connection-mark=\
      passthrough=yes connection-mark=no-mark in-interface=ppp-out2 log=no
      log-prefix=""

12 X  chain=prerouting action=mark-connection new-connection-mark=VPN1
      passthrough=yes src-address=192.168.88.10-192.168.88.254 log=yes
      log-prefix="VPN1"