ping respond for 2 WAN

RouterOS Beginner Basics
1

I have 2 ISP provider going to the same router

ADDRESS NETWORK INTERFACE

0 192.168.0.1/24 192.168.0.0 LAN0-0
1 192.168.2.1/24 192.168.2.0 wlan0
2 192.168.1.1/24 192.168.1.0 LAN1-0
3 192.168.3.1/24 192.168.3.0 wlan1
4 D yy.yy.yy.yy/32 yy.yy.yy.yy DSL1 (STATIC IP)
5 D xx.xx.xx.xx/32 xx.xx.xx.xx DSL0

Traffic from 192.168.0.1/24 and 192.168.2.1/24 (bridge0) will leave from DSL0
Traffic from 192.168.1.1/24 and 192.168.3.1/24 (bridge1) will leave from DSL1

95 ;;; toDSL1 chain=prerouting action=mark-routing new-routing-mark=toDSL1 passthrough=no src-address=192.168.1.0/24 dst-address-list=!local-address

96 ;;; toDSL0 chain=prerouting action=mark-routing new-routing-mark=toDSL0 passthrough=no src-address=192.168.0.0/24 dst-address-list=!local-address

DST-ADDRESS PREF-SRC GATEWAY DISTANCE

0 A S 0.0.0.0/0 DSL1 1 (toDSL1)
1 A S 0.0.0.0/0 DSL0 1 (toDSL0)
2 ADC 192.168.0.0/24 192.168.0.1 bridge0 0
3 ADC 192.168.1.0/24 192.168.1.1 bridge1 0
4 ADC 192.168.2.0/24 192.168.2.1 wlan0 0
5 ADC 192.168.3.0/24 192.168.3.1 bridge1 0
6 ADC xx.xx.xx.xx/32 xx.xx.xx.xx DSL0 0
DSL1
7 A S ;;; route from router for primary NTP
xx.xx.xx.xx/32 DSL0 1

I am receiving icmp traffic (ping) from DSL1 and DSL0 and I would like the router to respond.
Since the packet gets generated from the router, how do I tell the router to send the respond packet to the appropriate interface?

Thanks

TONY

2

http://wiki.mikrotik.com/wiki/Manual:PCC#Policy_routing
Read the second paragraph about the second code snippet, the rules that handle in-interface=ISP1 and in-interface=ISP2. They deal with exactly that. Any traffic entering the router through a WAN interface must be marked so it leaves the router through the same interface. Your WAN initiated pings fall under that category.

3

Based on the wiki link, I did the following

add action=mark-connection chain=prerouting comment=test disabled=no in-interface=DSL0 new-connection-mark=DSL0_conn passthrough=no protocol=icmp
add action=mark-routing chain=output connection-mark=DSL0_conn disabled=no new-routing-mark=toDSL0 passthrough=no
add action=mark-routing chain=prerouting connection-mark=DSL0_conn disabled=no new-routing-mark=toDSL0 passthrough=no protocol=icmp

I can see from the counter (icmp) coming to DSL0. However there is no output (response) packet generated to route to DSL0

I am missing something?

I am also using L7 traffic shapping to mark my packets

Thanks