i have domain1\user1 and this get radius proxy correctly to the radius1 server (11.11.11.11) based on ntdomain prefix have also set the ignore_null = yes i have user1@domain1 and this get radius proxy correctly to the radius1 server (11.11.11.11) based on suffix have also set the ignore_null = yes *under /modules/realm * realm ntdomain { format = prefix delimiter = "\\" ignore_default = yes ignore_null = yes } realm suffix { format = suffix delimiter = "@" ignore_default = yes ignore_null = yes } *Under proxy.conf* realm domain1 { type = radius nostrip authhost = 11.11.11.11:1812 accthost = 11.11.11.11:1813 secret = secret1 } realm NULL { type = auth authhost = 22.22.22.22:1812 accthost = 22.22.22.22:1813 secret = secret1 } *Debug * *[ntdomain] No '\' in User-Name = "user2", skipping NULL due to config. ++[ntdomain] returns noop [suffix] No '@' in User-Name = "user2", skipping NULL due to config. ++[suffix] returns noop* [eap] No EAP-Message, not doing EAP ++[eap] returns noop ++[unix] returns notfound ++[files] returns noop ++[expiration] returns noop ++[logintime] returns noop [pap] WARNING! No "known good" password found for the user. Authentication may fail because of this. ++[pap] returns noop No authenticate method (Auth-Type) configuration found for the request: Rejecting the user Failed to authenticate the user. Using Post-Auth-Type Reject +- entering group REJECT {...} [attr_filter.access_reject] expand: %{User-Name} -> user2 attr_filter: Matched entry DEFAULT at line 11 ++[attr_filter.access_reject] returns updated Delaying reject of request 3 for 1 seconds Going to the next request Waking up in 0.9 seconds. Sending delayed reject for request 3 Sending Access-Reject of id 211 to 3.3.3.3 port 1645 Waking up in 1.0 seconds. Cleaning up request 2 ID 210 with timestamp +14 Waking up in 3.9 seconds. Cleaning up request 3 ID 211 with timestamp +17 Ready to process requests. i have user2 (without domain) and this get rejected, i want it to send to radius2 server (22.22.22.22) as defined in the NULL domain as defined in the proxy.conf. Can advise how to do this?