Active Directory Integration with FreeRADIUS - NTLM_Auth

Doug White dwhite at infosysnetworks.com
Fri Jun 16 17:30:26 CEST 2006


Hello,

I am trying to walk through the following document:

http://homepages.lu/charlesschwartz/radius/freeRadius_AD_tutorial.pdf

in order to authenticate Cisco router and switch logins against
FreeRadius/Active Directory.  Using the HowTo, I have successfully
joined a FC2 box to our Windows 2003 AD for testing purposes.  I have
also successfully used the manual ntlm_auth command to authenticate a
user from the Radius server.  I have configured the Cisco switch to
point to the Radius server for authentication.  I am not trying to
authenticate an actual PC from a switch port, so I have not followed
through with the EAP portion of the HowTo.

Here is the output of the Radiusd -X and the attempted telnet login to
the switch:

# radiusd -X
Starting - reading configuration files ...
reread_config:  reading radiusd.conf
Config:   including file: /etc/raddb/proxy.conf
Config:   including file: /etc/raddb/clients.conf
Config:   including file: /etc/raddb/snmp.conf
Config:   including file: /etc/raddb/eap.conf
Config:   including file: /etc/raddb/sql.conf
 main: prefix = "/usr"
 main: localstatedir = "/var"
 main: logdir = "/var/log/radius"
 main: libdir = "/usr/lib"
 main: radacctdir = "/var/log/radius/radacct"
 main: hostname_lookups = no
 main: max_request_time = 30
 main: cleanup_delay = 5
 main: max_requests = 1024
 main: delete_blocked_requests = 0
 main: port = 0
 main: allow_core_dumps = no
 main: log_stripped_names = no
 main: log_file = "/var/log/radius/radius.log"
 main: log_auth = no
 main: log_auth_badpass = no
 main: log_auth_goodpass = no
 main: pidfile = "/var/run/radiusd/radiusd.pid"
 main: user = "radiusd"
 main: group = "radiusd"
 main: usercollide = no
 main: lower_user = "no"
 main: lower_pass = "no"
 main: nospace_user = "no"
 main: nospace_pass = "no"
 main: checkrad = "/usr/sbin/checkrad"
 main: proxy_requests = yes
 proxy: retry_delay = 5
 proxy: retry_count = 3
 proxy: synchronous = no
 proxy: default_fallback = yes
 proxy: dead_time = 120
 proxy: post_proxy_authorize = yes
 proxy: wake_all_if_all_dead = no
 security: max_attributes = 200
 security: reject_delay = 1
 security: status_server = no
 main: debug_level = 0
read_config_files:  reading dictionary
read_config_files:  reading naslist
Using deprecated naslist file.  Support for this will go away soon.
read_config_files:  reading clients
read_config_files:  reading realms
radiusd:  entering modules setup
Module: Library search path is /usr/lib
Module: Loaded exec
 exec: wait = yes
 exec: program = "(null)"
 exec: input_pairs = "request"
 exec: output_pairs = "(null)"
 exec: packet_type = "(null)"
rlm_exec: Wait=yes but no output defined. Did you mean output=none?
Module: Instantiated exec (exec)
Module: Loaded expr
Module: Instantiated expr (expr)
Module: Loaded PAP
 pap: encryption_scheme = "crypt"
Module: Instantiated pap (pap)
Module: Loaded CHAP
Module: Instantiated chap (chap)
Module: Loaded MS-CHAP
 mschap: use_mppe = yes
 mschap: require_encryption = no
 mschap: require_strong = no
 mschap: with_ntdomain_hack = yes
 mschap: passwd = "(null)"
 mschap: authtype = "MS-CHAP"
 mschap: ntlm_auth = "/usr/bin/ntlm_auth --request-nt-key --domain=
%{mschap:NT-Domain} --username=%{mschap:User-Name} --challenge=
%{mschap:Challenge:-00} --nt-response=%{mschap:NT-Response:-00}"
Module: Instantiated mschap (mschap)
Module: Loaded System
 unix: cache = no
 unix: passwd = "(null)"
 unix: shadow = "/etc/shadow"
 unix: group = "(null)"
 unix: radwtmp = "/var/log/radius/radwtmp"
 unix: usegroup = no
 unix: cache_reload = 600
Module: Instantiated unix (unix)
Module: Loaded eap
 eap: default_eap_type = "md5"
 eap: timer_expire = 60
 eap: ignore_unknown_eap_types = no
 eap: cisco_accounting_username_bug = no
rlm_eap: Loaded and initialized type md5
rlm_eap: Loaded and initialized type leap
 gtc: challenge = "Password: "
 gtc: auth_type = "PAP"
rlm_eap: Loaded and initialized type gtc
 mschapv2: with_ntdomain_hack = no
rlm_eap: Loaded and initialized type mschapv2
Module: Instantiated eap (eap)
Module: Loaded preprocess
 preprocess: huntgroups = "/etc/raddb/huntgroups"
 preprocess: hints = "/etc/raddb/hints"
 preprocess: with_ascend_hack = no
 preprocess: ascend_channels_per_line = 23
 preprocess: with_ntdomain_hack = no
 preprocess: with_specialix_jetstream_hack = no
 preprocess: with_cisco_vsa_hack = no
Module: Instantiated preprocess (preprocess)
Module: Loaded realm
 realm: format = "suffix"
 realm: delimiter = "@"
 realm: ignore_default = no
 realm: ignore_null = no
Module: Instantiated realm (suffix)
Module: Loaded files
 files: usersfile = "/etc/raddb/users"
 files: acctusersfile = "/etc/raddb/acct_users"
 files: preproxy_usersfile = "/etc/raddb/preproxy_users"
 files: compat = "no"
Module: Instantiated files (files)
Module: Loaded Acct-Unique-Session-Id
 acct_unique: key = "User-Name, Acct-Session-Id, NAS-IP-Address,
Client-IP-Address, NAS-Port"
Module: Instantiated acct_unique (acct_unique)
Module: Loaded detail
 detail: detailfile =
"/var/log/radius/radacct/%{Client-IP-Address}/detail-%Y%m%d"
 detail: detailperm = 384
 detail: dirperm = 493
 detail: locking = no
Module: Instantiated detail (detail)
Module: Loaded radutmp
 radutmp: filename = "/var/log/radius/radutmp"
 radutmp: username = "%{User-Name}"
 radutmp: case_sensitive = yes
 radutmp: check_with_nas = yes
 radutmp: perm = 384
 radutmp: callerid = yes
Module: Instantiated radutmp (radutmp)
Listening on authentication *:1812
Listening on accounting *:1813
Listening on proxy *:1814
Ready to process requests.
rad_recv: Access-Request packet from host 172.16.0.3:1645, id=68,
length=78
        NAS-IP-Address = 172.16.0.3
        NAS-Port = 66
        NAS-Port-Type = Virtual
        User-Name = "dwhite"
        Calling-Station-Id = "172.16.2.122"
        User-Password = "Password1"
  Processing the authorize section of radiusd.conf
modcall: entering group authorize for request 0
  modcall[authorize]: module "preprocess" returns ok for request 0
  modcall[authorize]: module "chap" returns noop for request 0
  modcall[authorize]: module "mschap" returns noop for request 0
    rlm_realm: No '@' in User-Name = "dwhite", looking up realm NULL
    rlm_realm: No such realm "NULL"
  modcall[authorize]: module "suffix" returns noop for request 0
  rlm_eap: No EAP-Message, not doing EAP
  modcall[authorize]: module "eap" returns noop for request 0
    users: Matched DEFAULT at 152
  modcall[authorize]: module "files" returns ok for request 0
modcall: group authorize returns ok for request 0
  rad_check_password:  Found Auth-Type System
auth: type "System"
  Processing the authenticate section of radiusd.conf
modcall: entering group authenticate for request 0
  modcall[authenticate]: module "unix" returns notfound for request 0
modcall: group authenticate returns notfound for request 0
auth: Failed to validate the user.
Delaying request 0 for 1 seconds
Finished request 0
Going to the next request
--- Walking the entire request list ---
Waking up in 1 seconds...
--- Walking the entire request list ---
Waking up in 1 seconds...
--- Walking the entire request list ---
Sending Access-Reject of id 68 to 172.16.0.3:1645
Waking up in 4 seconds...
--- Walking the entire request list ---
Cleaning up request 0 ID 68 with timestamp 448daaf9
Nothing to do.  Sleeping until we see a request.

Any help as to my next step would be greatly appreciated.

Thanks,
Doug White

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