Possibility to use 1 Fortiauthenticator as remote RADIUS for another FortiAuthenticator?

[Alex_talmage]

We have two sites, one in the UK and one in the US. We've been using Fortiauthenticator here in the UK for a couple of years, to provide 2FA to admin systems via RADIUS. We use LDAP back to Active Directory to authenticate users.

I'm just installing on the US, and there is going to be a need for UK employees to access US admin systems. The US admin systems will point to the US fortiauthenticator, so for UK employees they would have to have a seperate fortitoken on the US Fortiauthenticator aswell? Or is there a way that for UK employees, the US fortiauthenticator can send the RADIUS request onto the UK fortiauthenticator so that they can use their existing fortitokens?