Hi all,

i've just installed a FreeRadius server 2.2.0 with DHCP support because
i need a dhcp server that use MySQL ad a backend.

My network topology is:

eth0      inet addr:193.205.4.xxx [PUBLIC]
eth1      inet addr:172.20.1.2 [PRIVATE]

all dhcp requests and reply should come from eth1. Here is freeradius -X
dump:

FreeRADIUS Version 2.2.0, for host i486-pc-linux-gnu, built on Sep 20
2012 at 13:37:59
Copyright (C) 1999-2012 The FreeRADIUS server project and contributors.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
You may redistribute copies of FreeRADIUS under the terms of the
GNU General Public License v2.
Starting - reading configuration files ...
including configuration file /etc/freeradius/radiusd.conf
including configuration file /etc/freeradius/clients.conf
including files in directory /etc/freeradius/mods-enabled/
including configuration file /etc/freeradius/mods-enabled/replicate
including configuration file /etc/freeradius/mods-enabled/smsotp
including configuration file /etc/freeradius/mods-enabled/preprocess
including configuration file /etc/freeradius/mods-enabled/ldap
including configuration file /etc/freeradius/mods-enabled/counter
including configuration file /etc/freeradius/mods-enabled/detail.log
including configuration file /etc/freeradius/mods-enabled/otp
including configuration file /etc/freeradius/mods-enabled/inner-eap
including configuration file /etc/freeradius/mods-enabled/acct_unique
including configuration file /etc/freeradius/mods-enabled/wimax
including configuration file /etc/freeradius/mods-enabled/dynamic_clients
including configuration file /etc/freeradius/mods-enabled/etc_group
including configuration file /etc/freeradius/mods-enabled/redis
including configuration file /etc/freeradius/mods-enabled/cui
including configuration file /etc/freeradius/mods-enabled/ntlm_auth
including configuration file /etc/freeradius/mods-enabled/cache
including configuration file /etc/freeradius/mods-enabled/mac2ip
including configuration file /etc/freeradius/mods-enabled/dhcp_sqlippool
including configuration file /etc/freeradius/sql/mysql/ippool-dhcp.conf
including configuration file /etc/freeradius/mods-enabled/policy
including configuration file /etc/freeradius/mods-enabled/expiration
including configuration file /etc/freeradius/mods-enabled/logintime
including configuration file /etc/freeradius/mods-enabled/radutmp
including configuration file /etc/freeradius/mods-enabled/smbpasswd
including configuration file /etc/freeradius/mods-enabled/ippool
including configuration file /etc/freeradius/mods-enabled/rediswho
including configuration file /etc/freeradius/mods-enabled/pam
including configuration file /etc/freeradius/mods-enabled/soh
including configuration file /etc/freeradius/mods-enabled/detail.example.com
including configuration file /etc/freeradius/mods-enabled/realm
including configuration file /etc/freeradius/mods-enabled/mac2vlan
including configuration file /etc/freeradius/mods-enabled/attr_filter
including configuration file /etc/freeradius/mods-enabled/exec
including configuration file /etc/freeradius/mods-enabled/pap
including configuration file /etc/freeradius/mods-enabled/unix
including configuration file /etc/freeradius/mods-enabled/passwd
including configuration file /etc/freeradius/mods-enabled/echo
including configuration file /etc/freeradius/mods-enabled/sradutmp
including configuration file /etc/freeradius/mods-enabled/always
including configuration file /etc/freeradius/mods-enabled/checkval
including configuration file /etc/freeradius/mods-enabled/chap
including configuration file /etc/freeradius/mods-enabled/mschap
including configuration file /etc/freeradius/mods-enabled/krb5
including configuration file /etc/freeradius/mods-enabled/sql_log
including configuration file /etc/freeradius/mods-enabled/attr_rewrite
including configuration file /etc/freeradius/mods-enabled/files
including configuration file /etc/freeradius/mods-enabled/perl
including configuration file /etc/freeradius/mods-enabled/radrelay
including configuration file
/etc/freeradius/mods-enabled/sqlcounter_expire_on_login
including configuration file /etc/freeradius/mods-enabled/expr
including configuration file /etc/freeradius/mods-enabled/linelog
including configuration file /etc/freeradius/mods-enabled/opendirectory
including configuration file /etc/freeradius/mods-enabled/detail
including configuration file /etc/freeradius/mods-enabled/digest
including configuration file /etc/freeradius/eap.conf
including configuration file /etc/freeradius/sql.conf
including configuration file /etc/freeradius/sqlippool.conf
including configuration file /etc/freeradius/sql/mysql/ippool.conf
including configuration file /etc/freeradius/policy.conf
including files in directory /etc/freeradius/sites-enabled/
including configuration file /etc/freeradius/sites-enabled/dhcp
including configuration file /etc/freeradius/sites-enabled/default
main {
        user = "root"
        group = "freerad"
        allow_core_dumps = no
}
including dictionary file /etc/freeradius/dictionary
main {
        name = "freeradius"
        prefix = "/usr"
        localstatedir = "/var"
        sbindir = "/usr/sbin"
        logdir = "/var/log/freeradius"
        run_dir = "/var/run/freeradius"
        libdir = "/usr/lib/freeradius"
        radacctdir = "/var/log/freeradius/radacct"
        hostname_lookups = no
        max_request_time = 30
        cleanup_delay = 5
        max_requests = 1024
        pidfile = "/var/run/freeradius/freeradius.pid"
        checkrad = "/usr/sbin/checkrad"
        debug_level = 0
        proxy_requests = no
 log {
        stripped_names = no
        auth = no
        auth_badpass = no
        auth_goodpass = no
 }
 security {
        max_attributes = 200
        reject_delay = 1
        status_server = yes
 }
}
radiusd: #### Loading Realms and Home Servers ####
radiusd: #### Loading Clients ####
 client localhost {
        ipaddr = 127.0.0.1
        require_message_authenticator = no
        secret = "testing123"
        nastype = "other"
 }
radiusd: #### Instantiating modules ####
 instantiate {
 Module: Linked to module rlm_exec
 Module: Instantiating module "exec" from file
/etc/freeradius/mods-enabled/exec
  exec {
        wait = no
        input_pairs = "request"
        shell_escape = yes
  }
 Module: Linked to module rlm_expr
 Module: Instantiating module "expr" from file
/etc/freeradius/mods-enabled/expr
 Module: Linked to module rlm_expiration
 Module: Instantiating module "expiration" from file
/etc/freeradius/mods-enabled/expiration
  expiration {
        reply-message = "Password Has Expired  "
  }
 Module: Linked to module rlm_logintime
 Module: Instantiating module "logintime" from file
/etc/freeradius/mods-enabled/logintime
  logintime {
        reply-message = "You are calling outside your allowed timespan  "
        minimum-timeout = 60
  }
 }
radiusd: #### Loading Virtual Servers ####
server { # from file /etc/freeradius/radiusd.conf
 modules {
  Module: Creating Auth-Type = digest
  Module: Creating Post-Auth-Type = REJECT
 Module: Checking authenticate {...} for more modules to load
 Module: Linked to module rlm_pap
 Module: Instantiating module "pap" from file
/etc/freeradius/mods-enabled/pap
  pap {
        encryption_scheme = "auto"
        auto_header = no
  }
 Module: Linked to module rlm_chap
 Module: Instantiating module "chap" from file
/etc/freeradius/mods-enabled/chap
 Module: Linked to module rlm_mschap
 Module: Instantiating module "mschap" from file
/etc/freeradius/mods-enabled/mschap
  mschap {
        use_mppe = yes
        require_encryption = no
        require_strong = no
        with_ntdomain_hack = no
        allow_retry = yes
  }
 Module: Linked to module rlm_digest
 Module: Instantiating module "digest" from file
/etc/freeradius/mods-enabled/digest
 Module: Linked to module rlm_unix
 Module: Instantiating module "unix" from file
/etc/freeradius/mods-enabled/unix
  unix {
        radwtmp = "/var/log/freeradius/radwtmp"
  }
 Module: Linked to module rlm_eap
 Module: Instantiating module "eap" from file /etc/freeradius/eap.conf
  eap {
        default_eap_type = "md5"
        timer_expire = 60
        ignore_unknown_eap_types = no
        cisco_accounting_username_bug = no
        max_sessions = 4096
  }
 Module: Linked to sub-module rlm_eap_md5
 Module: Instantiating eap-md5
 Module: Linked to sub-module rlm_eap_leap
 Module: Instantiating eap-leap
 Module: Linked to sub-module rlm_eap_gtc
 Module: Instantiating eap-gtc
   gtc {
        challenge = "Password: "
        auth_type = "PAP"
   }
 Module: Linked to sub-module rlm_eap_tls
 Module: Instantiating eap-tls
   tls {
        rsa_key_exchange = no
        dh_key_exchange = yes
        rsa_key_length = 512
        dh_key_length = 512
        verify_depth = 0
        CA_path = "/etc/freeradius/certs"
        pem_file_type = yes
        private_key_file = "/etc/freeradius/certs/server.key"
        certificate_file = "/etc/freeradius/certs/server.pem"
        CA_file = "/etc/freeradius/certs/ca.pem"
        private_key_password = "whatever"
        dh_file = "/etc/freeradius/certs/dh"
        random_file = "/dev/urandom"
        fragment_size = 1024
        include_length = yes
        check_crl = no
        cipher_list = "DEFAULT"
        make_cert_command = "/etc/freeradius/certs/bootstrap"
        ecdh_curve = "prime256v1"
    cache {
        enable = no
        lifetime = 24
        max_entries = 255
    }
    verify {
    }
    ocsp {
        enable = no
        override_cert_url = yes
        url = "http://127.0.0.1/ocsp/";
        use_nonce = yes
        timeout = 0
        softfail = no
    }
   }
 Module: Linked to sub-module rlm_eap_ttls
 Module: Instantiating eap-ttls
   ttls {
        default_eap_type = "md5"
        copy_request_to_tunnel = no
        use_tunneled_reply = no
        virtual_server = "inner-tunnel"
        include_length = yes
   }
 Module: Linked to sub-module rlm_eap_peap
 Module: Instantiating eap-peap
   peap {
        default_eap_type = "mschapv2"
        copy_request_to_tunnel = no
        use_tunneled_reply = no
        proxy_tunneled_request_as_eap = yes
        virtual_server = "inner-tunnel"
        soh = no
   }
 Module: Linked to sub-module rlm_eap_mschapv2
 Module: Instantiating eap-mschapv2
   mschapv2 {
        with_ntdomain_hack = no
        send_error = no
   }
 Module: Checking authorize {...} for more modules to load
 Module: Linked to module rlm_preprocess
 Module: Instantiating module "preprocess" from file
/etc/freeradius/mods-enabled/preprocess
  preprocess {
        huntgroups = "/etc/freeradius/huntgroups"
        hints = "/etc/freeradius/hints"
        with_ascend_hack = no
        ascend_channels_per_line = 23
        with_ntdomain_hack = no
        with_specialix_jetstream_hack = no
        with_cisco_vsa_hack = no
        with_alvarion_vsa_hack = no
  }
reading pairlist file /etc/freeradius/huntgroups
reading pairlist file /etc/freeradius/hints
 Module: Linked to module rlm_realm
 Module: Instantiating module "suffix" from file
/etc/freeradius/mods-enabled/realm
  realm suffix {
        format = "suffix"
        delimiter = "@"
        ignore_default = no
        ignore_null = no
  }
 Module: Linked to module rlm_files
 Module: Instantiating module "files" from file
/etc/freeradius/mods-enabled/files
  files {
        usersfile = "/etc/freeradius/users"
        acctusersfile = "/etc/freeradius/acct_users"
        preproxy_usersfile = "/etc/freeradius/preproxy_users"
        compat = "no"
  }
reading pairlist file /etc/freeradius/users
reading pairlist file /etc/freeradius/acct_users
reading pairlist file /etc/freeradius/preproxy_users
 Module: Checking preacct {...} for more modules to load
 Module: Linked to module rlm_acct_unique
 Module: Instantiating module "acct_unique" from file
/etc/freeradius/mods-enabled/acct_unique
  acct_unique {
        key = "User-Name, Acct-Session-Id, NAS-IP-Address, NAS-Identifier,
NAS-Port"
  }
 Module: Checking accounting {...} for more modules to load
 Module: Linked to module rlm_detail
 Module: Instantiating module "detail" from file
/etc/freeradius/mods-enabled/detail
  detail {
        detailfile =
"/var/log/freeradius/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-IPv6-Address}}/detail-%Y%m%d"
        header = "%t"
        detailperm = 384
        dirperm = 493
        locking = no
        log_packet_header = no
  }
 Module: Linked to module rlm_attr_filter
 Module: Instantiating module "attr_filter.accounting_response" from
file /etc/freeradius/mods-enabled/attr_filter
  attr_filter attr_filter.accounting_response {
        attrsfile = "/etc/freeradius/attrs.accounting_response"
        key = "%{User-Name}"
        relaxed = no
  }
reading pairlist file /etc/freeradius/attrs.accounting_response
 Module: Checking session {...} for more modules to load
 Module: Linked to module rlm_radutmp
 Module: Instantiating module "radutmp" from file
/etc/freeradius/mods-enabled/radutmp
  radutmp {
        filename = "/var/log/freeradius/radutmp"
        username = "%{User-Name}"
        case_sensitive = yes
        check_with_nas = yes
        perm = 384
        callerid = yes
  }
 Module: Checking post-proxy {...} for more modules to load
 Module: Checking post-auth {...} for more modules to load
 Module: Instantiating module "attr_filter.access_reject" from file
/etc/freeradius/mods-enabled/attr_filter
  attr_filter attr_filter.access_reject {
        attrsfile = "/etc/freeradius/attrs.access_reject"
        key = "%{User-Name}"
        relaxed = no
  }
reading pairlist file /etc/freeradius/attrs.access_reject
 } # modules
} # server
server dhcp { # from file /etc/freeradius/sites-enabled/dhcp
 modules {
 Module: Checking dhcp DHCP-Discover {...} for more modules to load
 Module: Loading virtual module dhcp_sqlippool.post-auth
 Module: Linked to module rlm_sqlippool
 Module: Instantiating module "dhcp_sqlippool" from file
/etc/freeradius/mods-enabled/dhcp_sqlippool
  sqlippool dhcp_sqlippool {
        sql-instance-name = "sql"
        lease-duration = 7200
        pool-name = ""
        allocate-begin = "START TRANSACTION"
        allocate-clear = "UPDATE radippool   SET nasipaddress = '', pool_key =
0,   callingstationid = '', username = '',   expiry_time = NULL   WHERE
expiry_time <= NOW() - INTERVAL 1 SECOND   "
        allocate-find = "SELECT framedipaddress FROM radippool  WHERE pool_name
= '%{control:Pool-Name}' AND  (  (callingstationid =
'%{Calling-Station-Id}') OR  (expiry_time < NOW() OR expiry_time IS
NULL)  )  ORDER BY (callingstationid = '%{Calling-Station-Id}') DESC,
expiry_time DESC LIMIT 1  FOR UPDATE"
        allocate-update = "UPDATE radippool  SET nasipaddress =
'%{NAS-IP-Address}', pool_key = '%{Calling-Station-Id}',
callingstationid = '%{Calling-Station-Id}', username = '%{User-Name}',
calledstationid = 'Freeradius-DHCP',  expiry_time = GREATEST(
IF(ISNULL(expiry_time),'0000-00-00 00:00:00',expiry_time),   NOW() +
INTERVAL 7200 SECOND)  WHERE framedipaddress = '%I' AND  (
(callingstationid = '%{Calling-Station-Id}') OR  (expiry_time < NOW() OR
expiry_time IS NULL)  )  "
        allocate-commit = "COMMIT"
        allocate-rollback = "ROLLBACK"
        pool-check = "SELECT id FROM radippool  WHERE
pool_name='%{control:Pool-Name}' LIMIT 1"
        start-begin = "START TRANSACTION"
        start-update = "SELECT NOW()"
        start-commit = "COMMIT"
        start-rollback = "ROLLBACK"
        alive-begin = "START TRANSACTION"
        alive-update = "SELECT NOW()"
        alive-commit = "COMMIT"
        alive-rollback = "ROLLBACK"
        stop-begin = "START TRANSACTION"
        stop-clear = "SELECT NOW()"
        stop-commit = "COMMIT"
        stop-rollback = "ROLLBACK"
        on-begin = "START TRANSACTION"
        on-clear = "SELECT NOW()"
        on-commit = "COMMIT"
        on-rollback = "ROLLBACK"
        off-begin = "START TRANSACTION"
        off-clear = "SELECT NOW()"
        off-commit = "COMMIT"
        off-rollback = "ROLLBACK"
        sqlippool_log_exists = "DHCP: Existing IP: %{reply:Framed-IP-Address}
(did %{Called-Station-Id} cli %{Calling-Station-Id} port %{NAS-Port}
user %{User-Name})"
        sqlippool_log_success = "DHCP: Allocated IP: %{reply:Framed-IP-Address}
from %{control:Pool-Name} (did %{Called-Station-Id} cli
%{Calling-Station-Id} port %{NAS-Port} user %{User-Name})"
        sqlippool_log_clear = "DHCP: Released IP %{Framed-IP-Address} (did
%{Called-Station-Id} cli %{Calling-Station-Id} user %{User-Name})"
        sqlippool_log_failed = "DHCP: IP Allocation FAILED from
%{control:Pool-Name} (did %{Called-Station-Id} cli %{Calling-Station-Id}
port %{NAS-Port} user %{User-Name})"
        sqlippool_log_nopool = "DHCP: No Pool-Name defined (did
%{Called-Station-Id} cli %{Calling-Station-Id} port %{NAS-Port} user
%{User-Name})"
        defaultpool = "main_pool"
  }
 Module: Linked to module rlm_sql
 Module: Instantiating module "sql" from file /etc/freeradius/sql.conf
  sql {
        driver = "rlm_sql_mysql"
        server = "xxx"
        port = "3306"
        login = "xxx"
        password = "xxxx"
        radius_db = "xxx"
        read_groups = yes
        sqltrace = no
        sqltracefile = "/var/log/freeradius/sqltrace.sql"
        readclients = no
        deletestalesessions = yes
        num_sql_socks = 5
        lifetime = 0
        max_queries = 0
        sql_user_name = ""
        default_user_profile = ""
        nas_query = "SELECT id,nasname,shortname,type,secret FROM nas"
        authorize_check_query = ""
        authorize_group_check_query = ""
        authorize_group_reply_query = ""
        accounting_onoff_query = ""
        accounting_update_query = ""
        accounting_update_query_alt = ""
        accounting_start_query = ""
        accounting_start_query_alt = ""
        accounting_stop_query = ""
        accounting_stop_query_alt = ""
        connect_failure_retry_delay = 60
        simul_count_query = ""
        simul_verify_query = ""
        postauth_query = ""
        safe-characters =
"@abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_: /"
  }
rlm_sql (sql): Driver rlm_sql_mysql (module rlm_sql_mysql) loaded and linked
rlm_sql (sql): Attempting to connect to v...@mysql.unisi.it:3306/opensips
rlm_sql (sql): starting 0
rlm_sql (sql): Attempting to connect rlm_sql_mysql #0
rlm_sql_mysql: Starting connect to MySQL server for #0
rlm_sql (sql): Connected new DB handle, #0
rlm_sql (sql): starting 1
rlm_sql (sql): Attempting to connect rlm_sql_mysql #1
rlm_sql_mysql: Starting connect to MySQL server for #1
rlm_sql (sql): Connected new DB handle, #1
rlm_sql (sql): starting 2
rlm_sql (sql): Attempting to connect rlm_sql_mysql #2
rlm_sql_mysql: Starting connect to MySQL server for #2
rlm_sql (sql): Connected new DB handle, #2
rlm_sql (sql): starting 3
rlm_sql (sql): Attempting to connect rlm_sql_mysql #3
rlm_sql_mysql: Starting connect to MySQL server for #3
rlm_sql (sql): Connected new DB handle, #3
rlm_sql (sql): starting 4
rlm_sql (sql): Attempting to connect rlm_sql_mysql #4
rlm_sql_mysql: Starting connect to MySQL server for #4
rlm_sql (sql): Connected new DB handle, #4
 Module: Linked to module rlm_always
 Module: Instantiating module "ok" from file
/etc/freeradius/mods-enabled/always
  always ok {
        rcode = "ok"
        simulcount = 0
        mpp = no
  }
 Module: Checking dhcp DHCP-Request {...} for more modules to load
 Module: Loading virtual module dhcp_sqlippool.post-auth
 Module: Checking dhcp (null) {...} for more modules to load
/etc/freeradius/sites-enabled/dhcp[67]: No name specified for
Post-Auth-Type block
 } # modules
} # server
radiusd: #### Opening IP addresses and Ports ####
listen {
        type = "dhcp"
        ipaddr = 255.255.255.255
        port = 67
}
Listening on dhcp interface eth1 address 255.255.255.255 port 67 as
server dhcp
Ready to process requests.

and here is the DHCP request:

Received DHCP-Discover of id 022e173c from 0.0.0.0:68 to 255.255.255.255:67
        DHCP-Opcode = Client-Message
        DHCP-Hardware-Type = Ethernet
        DHCP-Hardware-Address-Length = 6
        DHCP-Hop-Count = 0
        DHCP-Transaction-Id = 36575036
        DHCP-Number-of-Seconds = 0
        DHCP-Flags = 0
        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 = 0.0.0.0
        DHCP-Client-Hardware-Address = 00:04:13:71:11:65
        DHCP-Message-Type = DHCP-Discover
        DHCP-Parameter-Request-List = DHCP-Subnet-Mask
        DHCP-Parameter-Request-List = DHCP-Router-Address
        DHCP-Parameter-Request-List = DHCP-Time-Server
        DHCP-Parameter-Request-List = DHCP-Domain-Name-Server
        DHCP-Parameter-Request-List = DHCP-Hostname
        DHCP-Parameter-Request-List = DHCP-Domain-Name
        DHCP-Parameter-Request-List = DHCP-NTP-Servers
        DHCP-Parameter-Request-List = DHCP-Vendor
        DHCP-Parameter-Request-List = DHCP-IP-Address-Lease-Time
        DHCP-Parameter-Request-List = DHCP-TFTP-Server-Name
        DHCP-Parameter-Request-List = DHCP-Boot-File-Name
        DHCP-Parameter-Request-List = DHCP-SIP-Servers-DHCP-Option
        DHCP-Parameter-Request-List = DHCP-V-I-Vendor-Specific
        DHCP-Parameter-Request-List = DHCP-IEEE-802.1P-VLAN-ID
        DHCP-Parameter-Request-List = DHCP-IEEE-802.1Q-L2-Priority
        DHCP-Vendor-Class-Identifier = "snom760"
        DHCP-Hostname = "snom760-711165"
        DHCP-V-I-Vendor-Specific =
0x00000de919010630303034313302063731313136350307736e6f6d373630
server dhcp {
Trying sub-section dhcp DHCP-Discover {...}
+- entering group DHCP-Discover {...}
++[reply] returns noop
++[reply] returns noop
++- entering policy dhcp_sqlippool.post-auth {...}
+++[control] returns noop
        expand: DHCP-%{DHCP-Client-Hardware-Address} -> DHCP-00:04:13:71:11:65
        expand: %{DHCP-Client-Hardware-Address} -> 00:04:13:71:11:65
        expand: %{DHCP-Gateway-IP-Address} -> 0.0.0.0
        expand: %{%{DHCP-Gateway-IP-Address}:-127.0.0.1} -> 0.0.0.0
+++[request] returns noop
rlm_sql (sql): Reserving sql socket id: 4
[dhcp_sqlippool]        expand: START TRANSACTION -> START TRANSACTION
[dhcp_sqlippool]        expand: UPDATE radippool   SET nasipaddress = '',
pool_key = 0,   callingstationid = '', username = '',   expiry_time =
NULL   WHERE expiry_time <= NOW() - INTERVAL 1 SECOND    -> UPDATE
radippool   SET nasipaddress = '', pool_key = 0,   callingstationid =
'', username = '',   expiry_time = NULL   WHERE expiry_time <= NOW() -
INTERVAL 1 SECOND
[dhcp_sqlippool]        expand: SELECT framedipaddress FROM radippool  WHERE
pool_name = '%{control:Pool-Name}' AND  (  (callingstationid =
'%{Calling-Station-Id}') OR  (expiry_time < NOW() OR expiry_time IS
NULL)  )  ORDER BY (callingstationid = '%{Calling-Station-Id}') DESC,
expiry_time DESC LIMIT 1  FOR UPDATE -> SELECT framedipaddress FROM
radippool  WHERE pool_name = 'main_pool' AND  (  (callingstationid =
'00:04:13:71:11:65') OR  (expiry_time < NOW() OR expiry_time IS NULL)  )
 ORDER BY (callingstationid = '00:04:13:71:11:65') DESC,  expiry_time
DESC LIMIT 1  FOR UPDATE
[dhcp_sqlippool]        expand: UPDATE radippool  SET nasipaddress =
'%{NAS-IP-Address}', pool_key = '%{Calling-Station-Id}',
callingstationid = '%{Calling-Station-Id}', username = '%{User-Name}',
calledstationid = 'Freeradius-DHCP',  expiry_time = GREATEST(
IF(ISNULL(expiry_time),'0000-00-00 00:00:00',expiry_time),   NOW() +
INTERVAL 7200 SECOND)  WHERE framedipaddress = '172.20.1.20' AND  (
(callingstationid = '%{Calling-Station-Id}') OR  (expiry_time < NOW() OR
expiry_time IS NULL)  )   -> UPDATE radippool  SET nasipaddress =
'0.0.0.0', pool_key = '00:04:13:71:11:65',  callingstationid =
'00:04:13:71:11:65', username = 'DHCP-00:04:13:71:11:65',
calledstationid = 'Freeradius-DHCP',  expiry_time = GREATEST(
IF(ISNULL(expiry_time),'0000-00-00 00:00:00',expiry_time),   NOW() +
INTERVAL 7200 SECOND)  WHERE framedipaddress = '172.20.1.20' AND  (
(callingstationid = '00:04:13:71:11:65') OR  (expiry_time < NOW() OR
expiry_time IS NULL)  )
[dhcp_sqlippool] Allocated IP 172.20.1.20 [140114ac]
[dhcp_sqlippool]        expand: COMMIT -> COMMIT
rlm_sql (sql): Released sql socket id: 4
[dhcp_sqlippool]        expand: DHCP: Allocated IP: %{reply:Framed-IP-Address}
from %{control:Pool-Name} (did %{Called-Station-Id} cli
%{Calling-Station-Id} port %{NAS-Port} user %{User-Name}) -> DHCP:
Allocated IP: 172.20.1.20 from main_pool (did  cli 00:04:13:71:11:65
port  user DHCP-00:04:13:71:11:65)
DHCP: Allocated IP: 172.20.1.20 from main_pool (did  cli
00:04:13:71:11:65 port  user DHCP-00:04:13:71:11:65)
+++[dhcp_sqlippool] returns ok
+++? if (ok)
? Evaluating (ok) -> TRUE
+++? if (ok) -> TRUE
+++- entering if (ok) {...}
        expand: %{reply:Framed-IP-Address} -> 172.20.1.20
++++[reply] returns ok
+++- if (ok) returns ok
++- policy dhcp_sqlippool.post-auth returns ok
++[ok] returns ok
} # server dhcp
        DHCP-Subnet-Mask = 255.255.0.0
        DHCP-Router-Address = 172.20.1.1
        DHCP-Time-Server = 172.20.1.2
        DHCP-Domain-Name-Server = 172.20.1.2
        DHCP-Hostname = "voip.unisi.it"
        DHCP-Domain-Name = "voip.unisi.it"
        DHCP-NTP-Servers = 172.20.1.2
        DHCP-IP-Address-Lease-Time = 7200
        DHCP-DHCP-Server-Identifier = 172.20.1.2
        DHCP-TFTP-Server-Name = "tftp://172.20.1.2";
Sending DHCP-Offer of id 022e173c from 255.255.255.255:67 to 172.20.1.20:68
Finished request 0.
Cleaning up request 0 ID 36575036 with timestamp +2
Going to the next request
Ready to process requests.

but TCPDUMP (and the phone, that didn't receive the reply) say:

10:40:34.484198 IP (tos 0x0, ttl 128, id 0, offset 0, flags [none],
proto UDP (17), length 346)
    0.0.0.0.bootpc > 255.255.255.255.bootps: [no cksum] BOOTP/DHCP,
Request from 00:04:13:71:11:65 (oui Unknown), length 318, xid 0x22e173c,
Flags [none] (0x0000)
          Client-Ethernet-Address 00:04:13:71:11:65 (oui Unknown)
          Vendor-rfc1048 Extensions
            Magic Cookie 0x63825363
            DHCP-Message Option 53, length 1: Discover
            Parameter-Request Option 55, length 15:
              Subnet-Mask, Default-Gateway, Time-Server, Domain-Name-Server
              Hostname, Domain-Name, NTP, Vendor-Option
              Lease-Time, TFTP, BF, Option 120
              Option 125, Option 132, Option 133
            Vendor-Class Option 60, length 7: "snom760"
            Hostname Option 12, length 14: "snom760-711165"
            T125 Option 125, length 30:
0,3561,6401,1584,12336,13361,13058,1591,12593,12598,13571,1907,28271,27959,13872
            END Option 255, length 0

....

any hint ?

Thanks, Michele

-- 
Michele Pinassi
Responsabile Telefonia di Ateneo
Servizio Reti, Sistemi e Sicurezza Informatica - Università degli Studi
di Siena
tel: 0577.(23)2169 - fax: 0577.(23)2053

Per trovare una soluzione rapida ai tuoi problemi tecnici
consulta le FAQ di Ateneo, http://www.faq.unisi.it

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