Allied Telesis AT-WR4500 manual 192.168.0.0 192.168.0.255 Local1, DST-ADDRESS Prefsrc Gateway

AT-WR4500 Series - IEEE 802.11abgh Outdoor Wireless Routers					115
RouterOS v3 Configuration and User Guide
	Configuration of the IP addresses:
	[admin@PB-Router] ip address> print
	Flags: X - disabled, I - invalid, D - dynamic
	#	ADDRESS	NETWORK	BROADCAST	INTERFACE
	0	192.168.0.1/24	192.168.0.0	192.168.0.255	Local1
	1	192.168.1.1/24	192.168.1.0	192.168.1.255	Local2
	2	10.0.0.7/24	10.0.0.0	10.0.0.255	Public
	[admin@PB-Router] ip address>

To achieve the described result, follow these configuration steps:

Mark packets from network 192.168.0.0/24 with a new-routing-mark=net1, and packets from network 192.168.1.0/24 with a new-routing-mark=net2:

[admin@PB-Router] ip firewall mangle> add src-address=192.168.0.0/24 \ \... action=mark-routing new-routing-mark=net1 chain=prerouting [admin@PB-Router] ip firewall mangle> add src-address=192.168.1.0/24 \ \... action=mark-routing new-routing-mark=net2 chain=prerouting [admin@PB-Router] ip firewall mangle> print

Flags: X - disabled, I - invalid, D - dynamic

0chain=prerouting src-address=192.168.0.0/24 action=mark-routing new-routing-mark=net1

1chain=prerouting src-address=192.168.1.0/24 action=mark-routing new-routing-mark=net2

[admin@PB-Router] ip firewall mangle>

Route packets from network 192.168.0.0/24 to gateway GW_1 (10.0.0.2), packets from network 192.168.1.0/24 to gateway GW_2 (10.0.0.3), using the according packet marks. If GW_1 or GW_2 fails (does not reply to pings), route the respective packets to GW_Main (10.0.0.1):

[admin@PB-Router] ip route> add gateway=10.0.0.2 routing-mark=net1 \ \... check-gateway=ping

[admin@PB-Router] ip route> add gateway=10.0.0.3 routing-mark=net2 \ \... check-gateway=ping

[admin@PB-Router] ip route> add gateway=10.0.0.1
[admin@PB-Router] ip route> print
Flags: X - disabled, A - active, D - dynamic,
C - connect, S - static, r - rip, b - bgp, o - ospf
#	DST-ADDRESS	PREFSRC	G GATEWAY	DISTANCE INTERFACE
0	ADC 10.0.0.0/24	10.0.0.7		Public
1	ADC 192.168.0.0/24	192.168.0.1		Local1
2	ADC 192.168.1.0/24	192.168.1.1		Local2
3	A S 0.0.0.0/0		r 10.0.0.2	Public
4	A S 0.0.0.0/0		r 10.0.0.3	Public
5	A S 0.0.0.0/0		r 10.0.0.1	Public

[admin@PB-Router] ip route>