Hi, I need a configuration that works as follows regarding accounting data: NAS sends Accounting Request ->radius svr1 radius svr1 writes to acct db and sends Accounting Request -> radius svr2 radius svr1 sends Accounting Response back to NAS Using my current configuration, I have defined a home server for the NULL realm and in the accounting section of sites-enabled/default, I have added "replicate" This sort of works, but when the response comes from radius svr2, it is rejected by radius svr1, I believe because "replicate" is fire and forget. In any case, an Accounting Response is never sent back to the NAS so the NAS tries to start the process over. I don't require an ACK response from svr2 to svr1, but I do need a response from svr1 to the NAS. Is replicate the right way to go? Freeradius version=radiusd: FreeRADIUS Version 2.1.12, for host x86_64-redhat-linux-gnu sites-enabled/default (acct sections) ----- preacct { preprocess update control { Replicate-To-Realm := 'NULL' } acct_unique suffix files } accounting { sql replicate } proxy.conf -------------- home_server sv { type = acct ipaddr = 10.101.248.112 port = 1813 secret = testing123 require_message_authenticator = yes response_window = 20 zombie_period = 40 revive_interval = 120 status_check = status-server check_interval = 30 num_answers_to_alive = 3 max_outstanding = 65536 coa { irt = 2 mrt = 16 mrc = 5 mrd = 30 } } home_server_pool sv_pool { type = fail-over home_server = sv } realm LOCAL { } realm NULL { acct_pool = sandvine_pool }