Route all subnet traffic over specific IPSec tunnel
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Hello,
I have an IPSec tunnel from home to a Meraki MX-95 in the data center. Due to the way Meraki handles site-to-site VPNs with non-Meraki devices, I can't do a 0.0.0.0/0 P2 entry on my pfSense box; I have to list each exported subnet on the Meraki site as a P2 entry on my pfSense box. This leaves me with 11 P2 entries. It's not a problem; it connects and works. The issue is that this leaves me with a split-tunnel VPN, which I do not want (some of our customers don't allow this). I cannot figure out how to add a gateway/route on the pfSense side to force all traffic on my work subnet at home through the Meraki without having to set it up in Windows every time I boot my laptop, which I would prefer not to do.
If I try to create a gateway and enter any IP on the Meraki, I get an error stating that it doesn't live on one of the chosen interface's subnets, which makes sense. I know this isn't a normal use case, but it is what I have and any help is greatly appreciated.