Hi, I have following proxy configuration require_message_authenticator = yes type = auth port = 1812 secret = "pT65w44WzAqYOraNgE" #response_window = 20 # Not necessary defined in home_server default section #zombie_period = 40 # Without status check #status_check = none #revive_interval = 120 # Status check via existing user status_check = request check_interval = 6 num_answers_to_alive = 3 username = "orange-system" password = "incorrect" # We dont need Access-Accept, enougth is Access-Reject 15:34:29.016422 IP (tos 0x0, ttl 64, id 8072, offset 0, flags [none], proto: UDP (17), length: 118) tdrad1.vas.orange.sk.59157 > 10.14.135.19.radius: [udp sum ok] RADIUS, length: 90 Accounting Request (4), id: 0xea, Authenticator: 50365561fa7ae6cca5a956834b05dea8 Username Attribute (1), length: 15, Value: orange-system 0x0000: 6f72 616e 6765 2d73 7973 7465 6d Accounting Status Attribute (40), length: 6, Value: Stop 0x0000: 0000 0002 Accounting Session ID Attribute (44), length: 10, Value: 00000000 0x0000: 3030 3030 3030 3030 Event Timestamp Attribute (55), length: 6, Value: Mon Sep 21 15:34:29 2015 0x0000: 5600 0765 NAS ID Attribute (32), length: 33, Value: Status Check 64. Are you alive? 0x0000: 5374 6174 7573 2043 6865 636b 2036 342e 0x0010: 2041 7265 2079 6f75 2061 6c69 7665 3f 15:34:36.918919 IP (tos 0x0, ttl 64, id 8074, offset 0, flags [none], proto: UDP (17), length: 118) tdrad1.vas.orange.sk.59157 > 10.14.135.19.radius: [udp sum ok] RADIUS, length: 90 Accounting Request (4), id: 0xe9, Authenticator: 2f14cead04b5c267c9c85514235e5d48 Username Attribute (1), length: 15, Value: orange-system 0x0000: 6f72 616e 6765 2d73 7973 7465 6d Accounting Status Attribute (40), length: 6, Value: Stop 0x0000: 0000 0002 Accounting Session ID Attribute (44), length: 10, Value: 00000000 0x0000: 3030 3030 3030 3030 Event Timestamp Attribute (55), length: 6, Value: Mon Sep 21 15:34:36 2015 0x0000: 5600 076c NAS ID Attribute (32), length: 33, Value: Status Check 65. Are you alive? 0x0000: 5374 6174 7573 2043 6865 636b 2036 352e 0x0010: 2041 7265 2079 6f75 2061 6c69 7665 3f