>>В sql.conf добавить
>>readclients = yes ?
>
>
>Спасибо, все заработало!
Простите, господа, что поднимаю старую тему.
Реализовывал ту-же связку.
MPD не пускает, если Radius смотрит таблицу NAS в MySQL. Если в clients.conf, то пускает.

root@server# radiusd -sxf
...
rad_recv: Access-Request packet from host 192.168.0.2:54041, id=77, length=164
        NAS-Identifier = "server.rosserv.ru"
        NAS-Port = 0
        NAS-Port-Type = Virtual
        Service-Type = Framed-User
        Framed-Protocol = PPP
        Calling-Station-Id = "192.168.0.1"
        User-Name = "Sand"
        MS-CHAP-Challenge = 0xbb1e68de5d6af0fbb4b0d50a71d9378e
        MS-CHAP2-Response = 0x0100caf40b1767f1e32e7fc07734b7539d800000000000000000ccb3d84b05175a216a79cea5d874905bb6fce44d3b34ace0
rlm_sql (sql): Reserving sql socket id: 3
rlm_sql (sql): Released sql socket id: 3
Login OK: [Sand] (from client ServerMPD port 0 cli 192.168.0.1)
Sending Access-Accept of id 77 to 192.168.0.2:54041
        MS-CHAP2-Success = 0x01533d32334141303236383639353239343341443936304345323434343839393139343630363244443435
        MS-MPPE-Recv-Key = 0xc5af9e0c47a301e47fcd9f7ce18603c6
        MS-MPPE-Send-Key = 0x851f42aa1f7f770015dc0e436df9cd4a
        MS-MPPE-Encryption-Policy = 0x00000001
        MS-MPPE-Encryption-Types = 0x00000006
------------------------------------------------------
при readclients=no (пускает) это последние строки, если стоит "yes", то идёт продолжение и не пускает:
rad_recv: Access-Request packet from host 192.168.0.2:54041, id=77, length=164
Re-sending Access-Accept of id 77 to 192.168.0.2:54041
rad_recv: Access-Request packet from host 192.168.0.2:54041, id=77, length=164

root@server# more /var/log/mpd.log
...
Feb 20 14:54:56 server mpd: [pptp0] LCP: state change Ack-Sent --> Opened
Feb 20 14:54:56 server mpd: [pptp0] LCP: phase shift ESTABLISH --> AUTHENTICATE
Feb 20 14:54:56 server mpd: [pptp0] LCP: auth: peer wants nothing, I want CHAP
Feb 20 14:54:56 server mpd: [pptp0] CHAP: sending CHALLENGE
Feb 20 14:54:56 server mpd: [pptp0] LCP: LayerUp
Feb 20 14:54:56 server mpd: [pptp0] LCP: rec'd Ident #2 link 0 (Opened)
Feb 20 14:54:56 server mpd:  MESG: MSRASV5.10
Feb 20 14:54:56 server mpd: pptp0-0: ignoring SetLinkInfo
Feb 20 14:54:56 server mpd: [pptp0] LCP: rec'd Ident #3 link 0 (Opened)
Feb 20 14:54:56 server mpd:  MESG: MSRAS-1-LANIN
Feb 20 14:54:56 server mpd: [pptp0] CHAP: rec'd RESPONSE #1
Feb 20 14:54:56 server mpd:  Name: "Sand"
Feb 20 14:54:56 server mpd: [pptp0] RADIUS: using /usr/local/etc/raddb/radius.conf
Feb 20 14:54:56 server mpd: [pptp0] RADIUS: RadiusAddServer Adding 192.168.0.2
Feb 20 14:54:56 server mpd: [pptp0] RADIUS: RadiusPutAuth: RADIUS_CHAP (MSOFTv2) peer name: Sand

при readclients=no (успешный логин)
---------------------------------
Feb 20 14:54:56 server mpd: [pptp0] RADIUS: RadiusSendRequest: RAD_ACCESS_ACCEPT for user Sand
Feb 20 14:54:56 server mpd: [pptp0] RADIUS: RadiusGetParams:
RAD_MICROSOFT_MS_CHAP2_SUCCESS: S=E6B65C3C9F1B9BB89E35A8E8
9E67A4C41E747890
---------------------------------

при readclients=yes (непускает :( )
---------------------------------
Feb 20 14:51:50 server mpd: [pptp0] RADIUS: RadiusSendRequest: rad_send_request failed No valid RADIUS responses receiv
ed
---------------------------------

Из-за чего это может быть? Предполагаю что-то не дописал в таблицах MySQL.
у меня заполнены только NAS и RADCHECK