So I’ve tried, but failed to get this working – I’m sure someone can point me in the right direction (or a sledgehammer…). So I changed mods-enabled/ldap to have two entries ldap server001 { .. } ldap server002 { .. } Modified sites-enabled/inner-tunnel to: Auth-Type LDAP { redundant-load-balance ldap { server001 server002 } } And tried variations based on finding things in the freeradius mailing lists but I can’t seem to get it working. Output from debug generally gives me: /etc/raddb/sites-enabled/inner-tunnel[157]: Failed to find "ldap" as a module or policy. /etc/raddb/sites-enabled/inner-tunnel[157]: Please verify that the configuration exists in /etc/raddb/mods-enabled/ldap. /etc/raddb/sites-enabled/inner-tunnel[48]: Errors parsing authorize section. What secret sauce ingredient am I missing? I’ve tried defining, including use instantiate etc, but just can’t get a working scenario. Regards, Daniel