With the primary server everything works fine, but my problem is when I force to switch to fallover server (I switch off IP 1.2.3.4 machine) my freeradius server does not change to request 1.2.3.5 server.
How hard have you tried? It does not mark home server as dead on the first packet that doesn't get answered. Have a look at proxy.conf and dead and zombie times.
Sincerely I do not know how to mark a home server as 'dead'. The only way is response_window = 5 ('dead' after five seconds, I think). See my new proxy.conf ####################################### home_server primary_server { type = auth+acct ipaddr = 1.2.3.4 port = 1812 secret = mysecret require_message_authenticator = no response_window = 5 zombie_period = 30 revive_interval = 900 status_check = status-server check_interval = 60 num_answers_to_alive = 3 } home_server secondary_server { type = auth+acct ipaddr = 1.2.3.5 port = 1812 secret = mysecret require_message_authenticator = no response_window = 5 zombie_period = 30 revive_interval = 900 status_check = status-server check_interval = 60 num_answers_to_alive = 3 } home_server_pool roam_pool { type = fail-over home_server = primary_server home_server = secondary_server } realm myrealm.com { nostrip pool = roam_pool } _________________________________________________________________ Chatea sin límites en Messenger con la tarifa plana de Orange http://serviciosmoviles.es.msn.com/messenger/orange.aspx