Exclude subnet from site to site ipsec?
I've setup a site to site with pfsense on both ends. I want ALL internet traffic at site A to appear to be coming from site B. But I don't want site A's private network to be routed over ipsec (it needs to stay over at site A). Site A consists of 10.66.0.0/24 which is VPN connected back to site B. Site A is complex and has other non-ipsec networks that need to be accessible (10.0.0.0/8) without ipsec.
Now i'm trying to determine how to keep 10.0.0.0/8 non internet traffic from being sent to Site B.