Hello, I am introducing the Freeradius as DHCP server at my ISP and am experiencing problems with some vendors specifically routers TP-Link. The FreeRadius allocates the IP Router but unable to associate the IP offered by freeradius, what intrigues me is that the problem does not occur with the ISC-DHCP. FreeRADIUS Version 2.2.4 (git #14e1ee7) Follow my configuration and Debug. server dhcp { listen { type = dhcp ipaddr = XXX.XXX.0.26 port = 67 interface = eth0 broadcast = no } dhcp DHCP-Discover { update reply { DHCP-Message-Type = DHCP-Offer } update reply { DHCP-Domain-Name-Server = XXX.XXX.0.6 DHCP-Domain-Name-Server = XXX.XXX.0.250 DHCP-IP-Address-Lease-Time = 120 DHCP-DHCP-Server-Identifier = XXX.XXX.0.26 } sql.authorize dhcp_sqlippool sql.post-auth ok } dhcp DHCP-Request { update reply { DHCP-Message-Type = DHCP-Ack } update reply { DHCP-Domain-Name-Server = XXX.XXX.0.6 DHCP-Domain-Name-Server = XXX.XXX.0.250 DHCP-IP-Address-Lease-Time = 120 DHCP-DHCP-Server-Identifier = XXX.XXX.0.26 } sql.authorize dhcp_sqlippool sql.post-auth ok } dhcp { reject } } Ready to process requests. Received DHCP-Discover of id 7f519348 from 179.127.59.1:67 to 187.85.0.26:67 DHCP-Opcode = Client-Message DHCP-Hardware-Type = Ethernet DHCP-Hardware-Address-Length = 6 DHCP-Hop-Count = 1 DHCP-Transaction-Id = 2136052552 DHCP-Number-of-Seconds = 4 DHCP-Flags = Broadcast DHCP-Client-IP-Address = 0.0.0.0 DHCP-Your-IP-Address = 0.0.0.0 DHCP-Server-IP-Address = 0.0.0.0 DHCP-Gateway-IP-Address = 179.127.59.1 DHCP-Client-Hardware-Address = a0:f3:c1:f3:78:6a DHCP-Message-Type += DHCP-Discover DHCP-Client-Identifier += a0:f3:c1:f3:78:6a DHCP-DHCP-Maximum-Msg-Size += 576 DHCP-Parameter-Request-List += DHCP-Subnet-Mask DHCP-Parameter-Request-List += DHCP-Router-Address DHCP-Parameter-Request-List += DHCP-Domain-Name-Server DHCP-Parameter-Request-List += DHCP-Static-Routes DHCP-Parameter-Request-List += DHCP-Vendor DHCP-Parameter-Request-List += DHCP-NETBIOS-Name-Servers DHCP-Parameter-Request-List += DHCP-NETBIOS-Node-Type DHCP-Parameter-Request-List += DHCP-NETBIOS DHCP-Parameter-Request-List += DHCP-Classless-Static-Route DHCP-Parameter-Request-List += 249 DHCP-Relay-Circuit-Id = "1/1/FHTT-0027b63b" DHCP-Relay-Remote-Id = "" server dhcp { Trying sub-section dhcp DHCP-Discover {...} +group DHCP-Discover { ++update reply { ++} # update reply = noop ++update reply { ++} # update reply = noop [sql] expand: %{DHCP-Relay-Circuit-Id} -> 1/1/FHTT-0027b63b [sql] sql_set_user escaped user --> '1/1/FHTT-0027b63b' rlm_sql (sql): Reserving sql socket id: 2 [sql] expand: SELECT id, username, attribute, value, op FROM radcheck WHERE username = '%{SQL-User-Name}' ORDER BY id -> SELECT id, username, attribute, value, op FROM radcheck WHERE username = '1/1/FHTT-0027b63b' ORDER BY id [sql] User found in radcheck table [sql] expand: SELECT id, username, attribute, value, op FROM radreply WHERE username = '%{SQL-User-Name}' ORDER BY id -> SELECT id, username, attribute, value, op FROM radreply WHERE username = '1/1/FHTT-0027b63b' ORDER BY id [sql] expand: SELECT groupname FROM radusergroup WHERE username = '%{SQL-User-Name}' ORDER BY priority -> SELECT groupname FROM radusergroup WHERE username = '1/1/FHTT-0027b63b' ORDER BY priority rlm_sql (sql): Released sql socket id: 2 ++[sql.authorize] = ok ++policy dhcp_sqlippool.post-auth { +++update request { expand: %{DHCP-Relay-Circuit-Id} -> 1/1/FHTT-0027b63b expand: %{DHCP-Relay-Circuit-Id} -> 1/1/FHTT-0027b63b expand: %{DHCP-Gateway-IP-Address} -> 179.127.59.1 expand: %{%{DHCP-Gateway-IP-Address}:-127.0.0.1} -> 179.127.59.1 +++} # update request = noop [dhcp_sqlippool] No Pool-Name defined. [dhcp_sqlippool] expand: DHCP: No Pool-Name defined (did %{Called-Station-Id} cli %{Calling-Station-Id} port %{NAS-Port} user %{User-Name}) -> DHCP: No Pool-Name defined (did cli 1/1/FHTT-0027b63b port user 1/1/FHTT-0027b63b) DHCP: No Pool-Name defined (did cli 1/1/FHTT-0027b63b port user 1/1/FHTT-0027b63b) +++[dhcp_sqlippool] = noop +++? if (ok) ? Evaluating (ok) -> FALSE +++? if (ok) -> FALSE ++} # policy dhcp_sqlippool.post-auth = noop [sql] expand: %{DHCP-Relay-Circuit-Id} -> 1/1/FHTT-0027b63b [sql] sql_set_user escaped user --> '1/1/FHTT-0027b63b' [sql] expand: %{User-Password} -> [sql] ... expanding second conditional [sql] expand: %{Chap-Password} -> [sql] expand: INSERT INTO radpostauth (username, pass, reply, authdate) VALUES ( '%{User-Name}', '%{%{User-Password}:-%{Chap-Password}}', '%{reply:Packet-Type}', '%S') -> INSERT INTO radpostauth (username, pass, reply, authdate) VALUES ( '1/1/FHTT-0027b63b', '', '0', '2014-01-12 18:02:18') rlm_sql (sql) in sql_postauth: query is INSERT INTO radpostauth (username, pass, reply, authdate) VALUES ( '1/1/FHTT-0027b63b', '', '0', '2014-01-12 18:02:18') rlm_sql (sql): Reserving sql socket id: 1 rlm_sql (sql): Released sql socket id: 1 ++[sql.post-auth] = ok ++[ok] = ok +} # group DHCP-Discover = ok DHCP: Reply will be unicast to giaddr from original packet } # server dhcp Encoding DHCP-Offer of id 7f519348 to 179.127.59.1:67 DHCP-Opcode = Server-Message DHCP-Hardware-Type = Ethernet DHCP-Hardware-Address-Length = 6 DHCP-Hop-Count = 1 DHCP-Transaction-Id = 2136052552 DHCP-Number-of-Seconds = 0 DHCP-Flags = Broadcast DHCP-Client-IP-Address = 0.0.0.0 DHCP-Your-IP-Address = 179.127.59.2 DHCP-Server-IP-Address = 187.85.0.26 DHCP-Gateway-IP-Address = 179.127.59.1 DHCP-Client-Hardware-Address = a0:f3:c1:f3:78:6a DHCP-Server-Host-Name = "" DHCP-Boot-Filename = "" DHCP-Domain-Name-Server = 187.85.0.6 DHCP-Domain-Name-Server = 187.85.0.250 DHCP-IP-Address-Lease-Time = 120 DHCP-DHCP-Server-Identifier = 187.85.0.26 DHCP-DHCP-Maximum-Msg-Size = 576 Sending DHCP-Offer of id 7f519348 to 179.127.59.1:67 Finished request 1. Thanks.