DHCP reply don't go out
Michele Pinassi
michele.pinassi at unisi.it
Tue Feb 12 15:27:22 CET 2013
Maybe i've found something that can help us to solve the problem.
Here's FreeRadius DHCP reply (from dhcpdump):
---------------------------------------------------------------------------
TIME: 2013-02-12 15:13:10.426
IP: 172.20.1.2 (0:c:29:eb:3e:86) > 172.20.1.20 (0:4:13:71:11:65)
OP: 2 (BOOTPREPLY)
HTYPE: 1 (Ethernet)
HLEN: 6
HOPS: 0
XID: 44d8b628
SECS: 0
FLAGS: 0
CIADDR: 0.0.0.0
YIADDR: 172.20.1.20
SIADDR: 172.20.1.2
GIADDR: 0.0.0.0
CHADDR: 00:04:13:71:11:65:00:00:00:00:00:00:00:00:00:00
SNAME: .
FNAME: .
OPTION: 53 ( 1) DHCP message type 5 (DHCPACK)
OPTION: 1 ( 4) Subnet mask 255.255.255.0
OPTION: 3 ( 4) Routers 172.20.1.1
OPTION: 4 ( 4) Time server 172.20.1.2
OPTION: 6 ( 4) DNS server 172.20.1.2
OPTION: 12 ( 13) Host name voip.unisi.it
OPTION: 15 ( 13) Domainname voip.unisi.it
OPTION: 42 ( 4) NTP servers 172.20.1.2
OPTION: 51 ( 4) IP address leasetime 7200 (2h)
OPTION: 54 ( 4) Server identifier 172.20.1.2
OPTION: 66 ( 17) TFTP server name tftp://172.20.1.2
---------------------------------------------------------------------------
and this is the ISC DHCP Server reply (that i use in production on the
same machine):
---------------------------------------------------------------------------
TIME: 2013-02-12 15:19:42.168
IP: 172.20.1.2 (0:c:29:eb:3e:86) > 172.20.1.20 (cc:ef:48:5e:8f:e4)
OP: 2 (BOOTPREPLY)
HTYPE: 1 (Ethernet)
HLEN: 6
HOPS: 0
XID: 5ace8683
SECS: 0
FLAGS: 0
CIADDR: 172.20.1.20
YIADDR: 172.20.1.20
SIADDR: 0.0.0.0
GIADDR: 0.0.0.0
CHADDR: cc:ef:48:5e:8f:e4:00:00:00:00:00:00:00:00:00:00
SNAME: .
FNAME: .
OPTION: 53 ( 1) DHCP message type 5 (DHCPACK)
OPTION: 54 ( 4) Server identifier 172.20.1.2
OPTION: 51 ( 4) IP address leasetime 7200 (2h)
OPTION: 1 ( 4) Subnet mask 255.255.255.0
OPTION: 3 ( 4) Routers 172.20.1.1
OPTION: 42 ( 4) NTP servers 172.20.1.2
OPTION: 6 ( 4) DNS server 172.20.1.2
OPTION: 15 ( 13) Domainname voip.unisi.it
OPTION: 58 ( 4) T1 3600 (60m)
OPTION: 59 ( 4) T2 6300 (1h45m)
OPTION: 66 ( 17) TFTP server name tftp://172.20.1.2
OPTION: 2 ( 4) Time offset 7200 (2h)
---------------------------------------------------------------------------
I'm pointing on CIADDR and SIADDR.
Maybe something wrong in my policy.conf ?
[...]
# Assign compatibility data to request for sqlippool
dhcp_sqlippool.post-auth {
# Do some minor hacks to the request so that it looks
# like a RADIUS request to the SQL IP Pool module.
update control {
Pool-Name = "main_pool"
}
update request {
User-Name = "DHCP-%{DHCP-Client-Hardware-Address}"
Calling-Station-Id = "%{DHCP-Client-Hardware-Address}"
NAS-IP-Address = "%{%{DHCP-Gateway-IP-Address}:-127.0.0.1}"
Acct-Status-Type = Start
}
# Call the actual module
#
# Uncomment this in order to really call it!
dhcp_sqlippool
# fail
# Convert Framed-IP-Address to DHCP, but only if we
# actually allocated an address.
if (ok) {
update reply {
DHCP-Your-IP-Address = "%{reply:Framed-IP-Address}"
}
}
}
}
Thanks, Michele
On 12/02/2013 12:33, Russell Mike wrote:
> Is there any layer 3 device between client and dhcp server? Then you
> need dhcp relay agent,if that is not the case chk firewall.
> Thanks
>
> On Tuesday, February 12, 2013, Michele Pinassi wrote:
>
> 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
> <http://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 pair
> --
> 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
>
>
>
> -
> List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html
>
--
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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