RADIUS authentication for OpenVPN

[breakaway]

How do I tell my pfSense to use the IPSEC tunnel to access the radius server?

My radius server is at a remote site, but when I add a RADIUS server to test, I can't even see the pfSense sending any info to the radius server. I assume this is because it is using the "default gateway" and therefore failing.

Is it possible to tell the pfSense to use teh IPSEC tunnel to reach the RADIUS server?

[jimp]

It's not simple to have the firewall do that, you have to use a somewhat redundant gateway+route as described here:

https://doc.pfsense.org/index.php/Why_can't_I_query_SNMP,_use_syslog,_NTP,_or_other_services_initiated_by_the_firewall_itself_over_IPsec_VPN