Got stuck with a strange behaviour : Listening on auth address 10.10.9.5 port 1812 bound to server default Listening on acct address * port 1813 bound to server default Listening on auth address :: port 1812 bound to server default Listening on acct address :: port 1813 bound to server default Listening on auth address 127.0.0.1 port 18120 bound to server inner-tunnel Listening on proxy address * port 36922 Listening on proxy address :: port 52073 Ready to process requests (0) Received Access-Request Id 188 from 10.10.9.10:1044 to 10.10.9.5:1812 length 86 (0) User-Name = "admin" (0) User-Password = "c\375'\364D\212\021\257.?\327\017\336\177W\212" (0) NAS-IP-Address = 10.10.9.10 (0) NAS-Identifier = "Test" (0) NAS-Port-Type = Virtual (0) Service-Type = Framed-User (0) Framed-Protocol = PPP (0) # Executing section authorize from file /etc/raddb/sites-enabled/default (0) authorize { (0) policy filter_username { (0) if (!&User-Name) { (0) if (!&User-Name) -> FALSE (0) if (&User-Name =~ / /) { (0) if (&User-Name =~ / /) -> FALSE (0) if (&User-Name =~ /@.*@/ ) { (0) if (&User-Name =~ /@.*@/ ) -> FALSE (0) if (&User-Name =~ /\.\./ ) { (0) if (&User-Name =~ /\.\./ ) -> FALSE (0) if ((&User-Name =~ /@/) && (&User-Name !~ /@(.+)\.(.+)$/)) { (0) if ((&User-Name =~ /@/) && (&User-Name !~ /@(.+)\.(.+)$/)) -> FALSE (0) if (&User-Name =~ /\.$/) { (0) if (&User-Name =~ /\.$/) -> FALSE (0) if (&User-Name =~ /@\./) { (0) if (&User-Name =~ /@\./) -> FALSE (0) } # policy filter_username = notfound (0) [preprocess] = ok (0) [chap] = noop (0) [mschap] = noop (0) [digest] = noop (0) suffix: Checking for suffix after "@" (0) suffix: No '@' in User-Name = "admin", looking up realm NULL (0) suffix: No such realm "NULL" (0) [suffix] = noop (0) eap: No EAP-Message, not doing EAP (0) [eap] = noop (0) files: users: Matched entry DEFAULT at line 181 (0) [files] = ok (0) [expiration] = noop (0) [logintime] = noop (0) pap: WARNING: No "known good" password found for the user. Not setting Auth-Type (0) pap: WARNING: Authentication will fail unless a "known good" password is available (0) [pap] = noop (0) } # authorize = ok (0) ERROR: No Auth-Type found: rejecting the user via Post-Auth-Type = Reject (0) Failed to authenticate the user (0) Login incorrect (No Auth-Type found: rejecting the user via Post-Auth-Type = Reject): [admin/c?'? D???.?????W?] (from client switch port 0) (0) WARNING: Unprintable characters in the password. Double-check the shared secret on the server and the NAS! (0) Using Post-Auth-Type Reject (0) # Executing group from file /etc/raddb/sites-enabled/default (0) Post-Auth-Type REJECT { (0) attr_filter.access_reject: EXPAND %{User-Name} (0) attr_filter.access_reject: --> admin (0) attr_filter.access_reject: Matched entry DEFAULT at line 11 (0) [attr_filter.access_reject] = updated (0) [eap] = noop (0) policy remove_reply_message_if_eap { (0) if (&reply:EAP-Message && &reply:Reply-Message) { (0) if (&reply:EAP-Message && &reply:Reply-Message) -> FALSE (0) else { (0) [noop] = noop (0) } # else = noop (0) } # policy remove_reply_message_if_eap = noop (0) } # Post-Auth-Type REJECT = updated (0) Delaying response for 1.000000 seconds Waking up in 0.3 seconds. Waking up in 0.6 seconds. (0) Sending delayed response (0) Sent Access-Reject Id 188 from 10.10.9.5:1812 to 10.10.9.10:1044 length 20 Waking up in 3.9 seconds. Waking up in 8.9 seconds. (0) Cleaning up request packet ID 188 with timestamp +48 Ready to process requests (1) Received Access-Request Id 205 from 10.10.9.10:1045 to 10.10.9.5:1812 length 86 (1) User-Name = "admin" (1) User-Password = "\365yo\274\206Oz\203\024/\350\256p\317\312\353" (1) NAS-IP-Address = 10.10.9.10 (1) NAS-Identifier = "test" (1) NAS-Port-Type = Virtual (1) Service-Type = Framed-User (1) Framed-Protocol = PPP (1) # Executing section authorize from file /etc/raddb/sites-enabled/default (1) authorize { (1) policy filter_username { (1) if (!&User-Name) { (1) if (!&User-Name) -> FALSE (1) if (&User-Name =~ / /) { (1) if (&User-Name =~ / /) -> FALSE (1) if (&User-Name =~ /@.*@/ ) { (1) if (&User-Name =~ /@.*@/ ) -> FALSE (1) if (&User-Name =~ /\.\./ ) { (1) if (&User-Name =~ /\.\./ ) -> FALSE (1) if ((&User-Name =~ /@/) && (&User-Name !~ /@(.+)\.(.+)$/)) { (1) if ((&User-Name =~ /@/) && (&User-Name !~ /@(.+)\.(.+)$/)) -> FALSE (1) if (&User-Name =~ /\.$/) { (1) if (&User-Name =~ /\.$/) -> FALSE (1) if (&User-Name =~ /@\./) { (1) if (&User-Name =~ /@\./) -> FALSE (1) } # policy filter_username = notfound (1) [preprocess] = ok (1) [chap] = noop (1) [mschap] = noop (1) [digest] = noop (1) suffix: Checking for suffix after "@" (1) suffix: No '@' in User-Name = "admin", looking up realm NULL (1) suffix: No such realm "NULL" (1) [suffix] = noop (1) eap: No EAP-Message, not doing EAP (1) [eap] = noop (1) files: users: Matched entry DEFAULT at line 181 (1) [files] = ok (1) [expiration] = noop (1) [logintime] = noop (1) pap: WARNING: No "known good" password found for the user. Not setting Auth-Type (1) pap: WARNING: Authentication will fail unless a "known good" password is available (1) [pap] = noop (1) } # authorize = ok (1) ERROR: No Auth-Type found: rejecting the user via Post-Auth-Type = Reject (1) Failed to authenticate the user (1) Login incorrect (No Auth-Type found: rejecting the user via Post-Auth-Type = Reject): [admin/?yo?? Oz??/??p???] (from client switch port 0) (1) WARNING: Unprintable characters in the password. Double-check the shared secret on the server and the NAS! (1) Using Post-Auth-Type Reject (1) # Executing group from file /etc/raddb/sites-enabled/default (1) Post-Auth-Type REJECT { (1) attr_filter.access_reject: EXPAND %{User-Name} (1) attr_filter.access_reject: --> admin (1) attr_filter.access_reject: Matched entry DEFAULT at line 11 (1) [attr_filter.access_reject] = updated (1) [eap] = noop (1) policy remove_reply_message_if_eap { (1) if (&reply:EAP-Message && &reply:Reply-Message) { (1) if (&reply:EAP-Message && &reply:Reply-Message) -> FALSE (1) else { (1) [noop] = noop (1) } # else = noop (1) } # policy remove_reply_message_if_eap = noop (1) } # Post-Auth-Type REJECT = updated (1) Delaying response for 1.000000 seconds Waking up in 0.3 seconds. Waking up in 0.6 seconds. (1) Sending delayed response (1) Sent Access-Reject Id 205 from 10.10.9.5:1812 to 10.10.9.10:1045 length 20 Waking up in 3.9 seconds. Waking up in 8.9 seconds. (1) Cleaning up request packet ID 205 with timestamp +114 Ready to process requests. Just a few lines make me confused: (1) pap: WARNING: No "known good" password found for the user. Not setting Auth-Type (1) pap: WARNING: Authentication will fail unless a "known good" password is available Here is some lines from config users: user Cleartext-Password := "1234" Dlink-User-Level = 3 1) WARNING: Unprintable characters in the password. Double-check the shared secret on the server and the NAS! the secret is 100% correct on both sides..... is is really simple 123..... Got very confused.. I have tried to play around the whole day but could not sort the issue out :(