Attributes from users File not added to Proxy Response

11 Oct 2016


      Hello!
   I am running FreeRADIUS Version 2.2.8 (the latest version available for
   my current Ubuntu set-up).
   The FreeRADIUS acts as a proxy and forwards the request to another
   RADIUS.
   The answer is received and the information in the user file seems to be
   processed
   (which can be seen from the double Auth-Type listed in the debug
   output, and yes,
   I removed the Auth-Type from the users file and it still does not
   work).
   Now the additional attributes from the users file are NOT added to the
   response of the FreeRADIUS
   to the NAS.
   With an earlier version of FreeRADIUS these attributes had been added,
   as I can see from old
   Wireshark dumps of the RADIUS communication.
   The Context-Name = dsl would be required by the RedBack NAS to find the
   correct context!
   Am I missing something?

   Thanks in advance
   Karl-Heinz

   Here is the entry in the users file:

   DEFAULT Realm == "alice-voip.de"
           Session-Timeout = 86400,
           Framed-MTU = 1492,
           Context-Name = dsl

   And here the debug output:

   root@dnsrad1:/etc/freeradius# freeradius -X
   freeradius: FreeRADIUS Version 2.2.8, for host x86_64-pc-linux-gnu,
   built on Apr  5 2016 at 13:40:43
   Copyright (C) 1999-2015 The FreeRADIUS server project and contributors.
   .....
   radiusd: #### Loading Realms and Home Servers ####
    proxy server {
           retry_delay = 5
           retry_count = 3
           default_fallback = no
           dead_time = 120
           wake_all_if_all_dead = no
    }
    home_server localhost {
           ipaddr = 127.0.0.1
           port = 1812
           type = "auth"
           secret = "testing123"
           response_window = 20
           max_outstanding = 65536
           require_message_authenticator = yes
           zombie_period = 40
           status_check = "status-server"
           ping_interval = 30
           check_interval = 30
           num_answers_to_alive = 3
           num_pings_to_alive = 3
           revive_interval = 120
           status_check_timeout = 4
     coa {
           irt = 2
           mrt = 16
           mrc = 5
           mrd = 30
     }
    }
    realm alice-voip.de {
           nostrip
           authhost = www.xxx.yyy.zzz:1812
           secret = testing123
    }
   .....
    home_server_pool my_auth_failover {
           type = fail-over
           home_server = localhost
    }
    realm example.com {
           auth_pool = my_auth_failover
    }
    realm LOCAL {
    }
   radiusd: #### Loading Clients ####
    client localhost {
           ipaddr = 127.0.0.1
           require_message_authenticator = no
           secret = "testing123"
           nastype = "other"
    }
    client www.xxx.yyy.zzz {
           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/modules/exec
     exec {
           wait = no
           input_pairs = "request"
           shell_escape = yes
           timeout = 10
     }
    Module: Linked to module rlm_expr
    Module: Instantiating module "expr" from file
   /etc/freeradius/modules/expr
    Module: Linked to module rlm_expiration
    Module: Instantiating module "expiration" from file
   /etc/freeradius/modules/expiration
     expiration {
           reply-message = "Password Has Expired  "
     }
    Module: Linked to module rlm_logintime
    Module: Instantiating module "logintime" from file
   /etc/freeradius/modules/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: Checking authenticate {...} for more modules to load
    Module: Linked to module rlm_pap
    Module: Instantiating module "pap" from file
   /etc/freeradius/modules/pap
     pap {
           encryption_scheme = "auto"
           auto_header = no
     }
    Module: Linked to module rlm_chap
    Module: Instantiating module "chap" from file
   /etc/freeradius/modules/chap
    Module: Linked to module rlm_mschap
    Module: Instantiating module "mschap" from file
   /etc/freeradius/modules/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/modules/digest
    Module: Linked to module rlm_unix
    Module: Instantiating module "unix" from file
   /etc/freeradius/modules/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 = 1024
     }
    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
           check_all_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/modules/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/modules/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/modules/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/modules/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/modules/detail
     detail {
           detailfile =
   "/var/log/freeradius/radacct/%{%{Packet-Src-IP-Address}:-%{Packet-Src-I
   Pv6-Address}}/detail-%Y%m%d"
           header = "%t"
           detailperm = 384
           dirperm = 493
           locking = no
           log_packet_header = no
           escape_filenames = no
     }
    Module: Linked to module rlm_attr_filter
    Module: Instantiating module "attr_filter.accounting_response" from
   file /etc/freeradius/modules/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/modules/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/modules/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 inner-tunnel { # from file
   /etc/freeradius/sites-enabled/inner-tunnel
    modules {
    Module: Checking authenticate {...} for more modules to load
    Module: Checking authorize {...} for more modules to load
    Module: Checking session {...} for more modules to load
    Module: Checking post-proxy {...} for more modules to load
    Module: Checking post-auth {...} for more modules to load
    } # modules
   } # server
   radiusd: #### Opening IP addresses and Ports ####
   listen {
           type = "auth"
           ipaddr = *
           port = 0
   }
   listen {
           type = "acct"
           ipaddr = *
           port = 0
   }
   listen {
           type = "auth"
           ipaddr = 127.0.0.1
           port = 18120
   }
    ... adding new socket proxy address * port 56616
   Listening on authentication address * port 1812
   Listening on accounting address * port 1813
   Listening on authentication address 127.0.0.1 port 18120 as server
   inner-tunnel
   Listening on proxy address * port 1814
   Ready to process requests.

   .....
   Waking up in 4.9 seconds.
   rad_recv: Access-Request packet from host www.xxx.yyy.zzz port 1812,
   id=72, length=304
           User-Name = "1905462460-001C28@alice-voip.de"
           User-Password = "1234567820"
           Service-Type = Framed-User
           Framed-Protocol = PPP
           NAS-Identifier = "BRRB-0262-03-01"
           NAS-Port = 301996733
           NAS-Real-Port = 301991893
           NAS-Port-Type = Virtual
           NAS-Port-Id = "1/2 vlan-id 2005 pppoe 6845"
           Medium-Type = DSL
           Mac-Addr = "00-1c-28-18-66-b6"
           Connect-Info = "outer-tag"
           Platform-Type = SE-400
           OS-Version = "6.1.3.4p2"
           Agent-Circuit-Id =
   0x454448552d303236322d30332d30312061746d2030302f353a312e3335
           ADSL-Agent-Circuit-Id = "EDHU-0262-03-01 atm 00/5:1.35"
   # Executing section authorize from file
   /etc/freeradius/sites-enabled/default
   +group authorize {
   ++[preprocess] = ok
   ++[chap] = noop
   ++[mschap] = noop
   ++[digest] = noop
   [suffix] Looking up realm "alice-voip.de" for User-Name =
   "1905462460-001C28@alice-voip.de"
   [suffix] Found realm "alice-voip.de"
   [suffix] Adding Realm = "alice-voip.de"
   [suffix] Proxying request from user 1905462460-001C28 to realm
   alice-voip.de
   [suffix] Preparing to proxy authentication request to realm
   "alice-voip.de"
   ++[suffix] = updated
   [eap] No EAP-Message, not doing EAP
   ++[eap] = noop
   [files] users: Matched entry DEFAULT at line 219
   ++[files] = ok
   ++[expiration] = noop
   ++[logintime] = noop
   ++[pap] = noop
   +} # group authorize = updated
     WARNING: Empty pre-proxy section.  Using default return values.
   Sending Access-Request of id 133 to www.xxx.yyy.zzz port 1812
           User-Name = "1905462460-001C28@alice-voip.de"
           User-Password = "1234567820"
           Service-Type = Framed-User
           Framed-Protocol = PPP
           NAS-Identifier = "BRRB-0262-03-01"
           NAS-Port = 301996733
           NAS-Real-Port = 301991893
           NAS-Port-Type = Virtual
           NAS-Port-Id = "1/2 vlan-id 2005 pppoe 6845"
           Medium-Type = DSL
           Mac-Addr = "00-1c-28-18-66-b6"
           Connect-Info = "outer-tag"
           Platform-Type = SE-400
           OS-Version = "6.1.3.4p2"
           Agent-Circuit-Id =
   0x454448552d303236322d30332d30312061746d2030302f353a312e3335
           ADSL-Agent-Circuit-Id = "EDHU-0262-03-01 atm 00/5:1.35"
           NAS-IP-Address = www.xxx.yyy.zzz
           Proxy-State = 0x3732
   Proxying request 7 to home server www.xxx.yyy.zzz port 1812
   Sending Access-Request of id 133 to www.xxx.yyy.zzz port 1812
           User-Name = "1905462460-001C28@alice-voip.de"
           User-Password = "1234567820"
           Service-Type = Framed-User
           Framed-Protocol = PPP
           NAS-Identifier = "BRRB-0262-03-01"
           NAS-Port = 301996733
           NAS-Real-Port = 301991893
           NAS-Port-Type = Virtual
           NAS-Port-Id = "1/2 vlan-id 2005 pppoe 6845"
           Medium-Type = DSL
           Mac-Addr = "00-1c-28-18-66-b6"
           Connect-Info = "outer-tag"
           Platform-Type = SE-400
           OS-Version = "6.1.3.4p2"
           Agent-Circuit-Id =
   0x454448552d303236322d30332d30312061746d2030302f353a312e3335
           ADSL-Agent-Circuit-Id = "EDHU-0262-03-01 atm 00/5:1.35"
           NAS-IP-Address = www.xxx.yyy.zzz
           Proxy-State = 0x3732
   Going to the next request
   Waking up in 0.9 seconds.
   rad_recv: Access-Accept packet from host www.xxx.yyy.zzz port 1812,
   id=133, length=274
           Tunnel-Type:1 = L2TP
           Tunnel-Client-Auth-Id:1 = "hn_alice_voip"
           Tunnel-Assignment-Id:1 = "hn_alice_voip"
           Attr-69 = 0x01555555555555555555555555555555
           Tunnel-Preference:1 = 1
           Tunnel-Medium-Type:1 = IPv4
           Tunnel-Server-Endpoint:1 = "www.xxx.yyy.zzz"
           Tunnel-Type:2 = L2TP
           Tunnel-Client-Auth-Id:2 = "hn_alice_voip"
           Tunnel-Assignment-Id:2 = "hn_alice_voip"
           Attr-69 = 0x02555555555555555555555555555555
           Tunnel-Preference:2 = 2
           Tunnel-Medium-Type:2 = IPv4
           Tunnel-Server-Endpoint:2 = "www.xxx.yyy.zzy"
           Tunnel-Type:3 = L2TP
           Tunnel-Client-Auth-Id:3 = "hn_alice_voip"
           Tunnel-Assignment-Id:3 = "hn_alice_voip"
           Attr-69 = 0x03555555555555555555555555555555
           Tunnel-Preference:3 = 3
           Tunnel-Medium-Type:3 = IPv4
           Tunnel-Server-Endpoint:3 = "www.xxx.yyy.zzx"
           Proxy-State = 0x3732
   # Executing section post-proxy from file
   /etc/freeradius/sites-enabled/default
   +group post-proxy {
   [eap] No pre-existing handler found
   ++[eap] = noop
   +} # group post-proxy = noop
   Found Auth-Type = Accept
   Found Auth-Type = Accept
   Warning:  Found 2 auth-types on request for user
   '1905462460-001C28@alice-voip.de'
   Auth-Type = Accept, accepting the user
   Login OK: [1905462460-001C28@alice-voip.de/1234567820] (from client
   www.xxx.yyy.zzz port 301996733)
   # Executing section post-auth from file
   /etc/freeradius/sites-enabled/default
   +group post-auth {
   ++[exec] = noop
   +} # group post-auth = noop
   Sending Access-Accept of id 72 to www.xxx.yyy.zzz port 1812
           Tunnel-Type:1 = L2TP
           Tunnel-Client-Auth-Id:1 = "hn_alice_voip"
           Tunnel-Assignment-Id:1 = "hn_alice_voip"
           Attr-69 = 0x01555555555555555555555555555555
           Tunnel-Preference:1 = 1
           Tunnel-Medium-Type:1 = IPv4
           Tunnel-Server-Endpoint:1 = "www.xxx.yyy.zzz"
           Tunnel-Type:2 = L2TP
           Tunnel-Client-Auth-Id:2 = "hn_alice_voip"
           Tunnel-Assignment-Id:2 = "hn_alice_voip"
           Attr-69 = 0x02555555555555555555555555555555
           Tunnel-Preference:2 = 2
           Tunnel-Medium-Type:2 = IPv4
           Tunnel-Server-Endpoint:2 = "www.xxx.yyy.zzy"
           Tunnel-Type:3 = L2TP
           Tunnel-Client-Auth-Id:3 = "hn_alice_voip"
           Tunnel-Assignment-Id:3 = "hn_alice_voip"
           Attr-69 = 0x03555555555555555555555555555555
           Tunnel-Preference:3 = 3
           Tunnel-Medium-Type:3 = IPv4
           Tunnel-Server-Endpoint:3 = "www.xxx.yyy.zzx"
   Finished request 7.
   Going to the next request
   Waking up in 3.8 seconds.
   ^C
   root@dnsrad1:/etc/freeradius#

   ================ end of debug output =================

Dr. Karl-Heinz Pape

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