CARP setup on load balancing network

[timmerdanny]

Hi Pfsense members,

I am trying to setup a CARP with state synchronisation. I have two Pfsense Netgate SG-8860 1U boxes and want to have high availability on my network. Our ISP offers high availability. They have two uplinks with equal cost load balancing. So if a package send back out of R1 interface, it may get back on R2 WAN interface. I would like to have both boxes to share one WAN IP address, IPsec VPN should also be redundant.
I have tried to setup the envouriment, but my R2 does not seem to work. Can anybody tell me if my described scenario can work?

I have setup the following:

• Setup CARP interface, enable state synchronization (pfsync)
• Setup XMLRPC Sync
• SETUP CARP for LAN IP address
• Configured the same WAN IP address for both routers