Failover WAN between 2 WANs and static route on third WAN

[ashima]

Hello everyone,

I am having a production box at one of the remote location. So I need to be very sure before I implement any changes. Here's my setup :

PFsense version 2.2.3. Three WAN connections :

WAN A  –-- primary default WAN  (static IP)
WAN B ------ backup WAN    (static IP)
WAN C ------ connected to other branch through a fiber cable. Traffic to 10.0.0.0/8 should only pass through this. It has it's own dns (10.x.x.x) server. The normal internet traffic should never go through this.

This is how I am planning to do the setup :

Step 1 :  In System--Routing---Gateway group

a)  AUp
              WAN A  ----    Tier 1
              WAN B  ----    Tier 2
              WAN C    ----  Never

Trigger when  ---  Member down

b)  BUp
              WAN A  ---- Tier 2
              WAN B  ----- Tier 1
              WAN C ----- Never
      Trigger when  -----  Member down

Step 2 :  System---Routing----Static Route

Destination : 10.0.0.0/8 
                Gateway    : WAN C

Step 3  :  Firewall ---- LAN Rule

Rule 1

destination : WAN C net
                  Gateway    : WAN C Gateway

Rule 2

destination  : any
                  Gateway : AUp

Rule 3

Destination : any
                    Gateway : BUp

Step 4 : System----ADvanced---- Miscellaneous

Tick switch default gateway

Tick  reset states                  ( I read in the forum this is  required when WAN A comes back live after a failover. )

Step 5 : System ----- General

DNS 1        WANA DNS
              DNS 2        WANB DNS

Is there any thing else I need to take care. Please suggest. I need to make these changes ASAP.

Thank You,

Regards,
Ashima