Plain Mac-Auth - server accepts but client does not connect

4 Jan 2016

      Hello everyone,

I am following the instructions on the wiki (http://wiki.freeradius.org/guide/Mac%20Auth) to configure our freeradius server for "Plain Mac-Auth" and the server is not responding how I expect.  I have the server configured and an "authorized_macs" file created that contains the mac address of an android phone that I would like accepted onto the network.  When I attempt to join the network from the phone, I am prompted for 802.1X credentials.  If I type no credentials, the server won't handle the request at all.  If I type something into one or both of the credentials fields, the server handles the request and displays "Auth-Type = Accept, accepting the user" and "Sending Access-Accept of id 7 to 216.54.247.198 port 58063", but my phone does not join the network.  It simply times out.  The Ubiquiti UniFi AP is in rental office space with a managed network, and the freeradius server is in the ec2 cloud.  Does anyone have any ideas how to troubleshoot this?  I don't think the UDP return traffic is being blocked, because the same thing happens if I move the AP to my house network with a COTS router.

Thanks,
Mike

[root@freeradius2 ~]# radiusd -X
radiusd: FreeRADIUS Version 2.2.6, for host x86_64-redhat-linux-gnu, built on Aug 14 2015 at 16:36:35
Copyright (C) 1999-2013 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.
For more information about these matters, see the file named COPYRIGHT.
Starting - reading configuration files ...
including configuration file /etc/raddb/radiusd.conf
including configuration file /etc/raddb/proxy.conf
including configuration file /etc/raddb/clients.conf
including files in directory /etc/raddb/modules/
including configuration file /etc/raddb/modules/perl
including configuration file /etc/raddb/modules/digest
including configuration file /etc/raddb/modules/smsotp
including configuration file /etc/raddb/modules/pam
including configuration file /etc/raddb/modules/files
including configuration file /etc/raddb/modules/sradutmp
including configuration file /etc/raddb/modules/expiration
including configuration file /etc/raddb/modules/mac2ip
including configuration file /etc/raddb/modules/soh
including configuration file /etc/raddb/modules/expr
including configuration file /etc/raddb/modules/cache
including configuration file /etc/raddb/modules/ntlm_auth
including configuration file /etc/raddb/modules/always
including configuration file /etc/raddb/modules/logintime
including configuration file /etc/raddb/modules/sql_log
including configuration file /etc/raddb/modules/dynamic_clients
including configuration file /etc/raddb/modules/realm
including configuration file /etc/raddb/modules/attr_rewrite
including configuration file /etc/raddb/modules/linelog
including configuration file /etc/raddb/modules/mac2vlan
including configuration file /etc/raddb/modules/unix
including configuration file /etc/raddb/modules/detail.log
including configuration file /etc/raddb/modules/rediswho
including configuration file /etc/raddb/modules/etc_group
including configuration file /etc/raddb/modules/preprocess
including configuration file /etc/raddb/modules/counter
including configuration file /etc/raddb/modules/otp
including configuration file /etc/raddb/modules/chap
including configuration file /etc/raddb/modules/echo
including configuration file /etc/raddb/modules/exec
including configuration file /etc/raddb/modules/replicate
including configuration file /etc/raddb/modules/acct_unique
including configuration file /etc/raddb/modules/radrelay
including configuration file /etc/raddb/modules/inner-eap
including configuration file /etc/raddb/modules/cui
including configuration file /etc/raddb/modules/dhcp_sqlippool
including configuration file /etc/raddb/modules/wimax
including configuration file /etc/raddb/modules/detail.example.com
including configuration file /etc/raddb/modules/pap
including configuration file /etc/raddb/modules/checkval
including configuration file /etc/raddb/modules/ippool
including configuration file /etc/raddb/modules/smbpasswd
including configuration file /etc/raddb/modules/radutmp
including configuration file /etc/raddb/modules/policy
including configuration file /etc/raddb/modules/attr_filter
including configuration file /etc/raddb/modules/redis
including configuration file /etc/raddb/modules/opendirectory
including configuration file /etc/raddb/modules/passwd
including configuration file /etc/raddb/modules/detail
including configuration file /etc/raddb/modules/mschap
including configuration file /etc/raddb/modules/sqlcounter_expire_on_login
including configuration file /etc/raddb/eap.conf
including configuration file /etc/raddb/policy.conf
including files in directory /etc/raddb/sites-enabled/
including configuration file /etc/raddb/sites-enabled/control-socket
including configuration file /etc/raddb/sites-enabled/inner-tunnel
including configuration file /etc/raddb/sites-enabled/default
main {
        user = "radiusd"
        group = "radiusd"
        allow_core_dumps = no
}
including dictionary file /etc/raddb/dictionary
main {
        name = "radiusd"
        prefix = "/usr"
        localstatedir = "/var"
        sbindir = "/usr/sbin"
        logdir = "/var/log/radius"
        run_dir = "/var/run/radiusd"
        libdir = "/usr/lib64/freeradius"
        radacctdir = "/var/log/radius/radacct"
        hostname_lookups = no
        max_request_time = 30
        cleanup_delay = 5
        max_requests = 1024
        pidfile = "/var/run/radiusd/radiusd.pid"
        checkrad = "/usr/sbin/checkrad"
        debug_level = 0
        proxy_requests = yes
 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 ####
 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 = 20.000000
        response_timeouts = 1
        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
  }
 }
 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 0.0.0.0/0 {
        require_message_authenticator = no
        secret = "<scrubbed>"
        shortname = "XMDAP"
 }
radiusd: #### Instantiating modules ####
 instantiate {
 Module: Linked to module rlm_exec
 Module: Instantiating module "exec" from file /etc/raddb/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/raddb/modules/expr
 Module: Linked to module rlm_expiration
 Module: Instantiating module "expiration" from file /etc/raddb/modules/expiration
  expiration {
        reply-message = "Password Has Expired  "
  }
 Module: Linked to module rlm_logintime
 Module: Instantiating module "logintime" from file /etc/raddb/modules/logintime
  logintime {
        reply-message = "You are calling outside your allowed timespan  "
        minimum-timeout = 60
  }
 }
radiusd: #### Loading Virtual Servers ####
server { # from file ▒▒▒?
 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/raddb/modules/pap
  pap {
        encryption_scheme = "auto"
        auto_header = no
  }
 Module: Linked to module rlm_chap
 Module: Instantiating module "chap" from file /etc/raddb/modules/chap
 Module: Linked to module rlm_mschap
 Module: Instantiating module "mschap" from file /etc/raddb/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/raddb/modules/digest
 Module: Linked to module rlm_unix
 Module: Instantiating module "unix" from file /etc/raddb/modules/unix
  unix {
        radwtmp = "/var/log/radius/radwtmp"
  }
 Module: Linked to module rlm_eap
 Module: Instantiating module "eap" from file /etc/raddb/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/raddb/certs"
        pem_file_type = yes
        private_key_file = "/etc/raddb/certs/server.pem"
        certificate_file = "/etc/raddb/certs/server.pem"
        CA_file = "/etc/raddb/certs/ca.pem"
        private_key_password = "whatever"
        dh_file = "/etc/raddb/certs/dh"
        fragment_size = 1024
        include_length = yes
        check_crl = no
        cipher_list = "DEFAULT"
        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/raddb/modules/preprocess
  preprocess {
        huntgroups = "/etc/raddb/huntgroups"
        hints = "/etc/raddb/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/raddb/huntgroups
reading pairlist file /etc/raddb/hints
 Module: Loading virtual module rewrite_calling_station_id
 Module: Linked to module rlm_always
 Module: Instantiating module "noop" from file /etc/raddb/modules/always
  always noop {
        rcode = "noop"
        simulcount = 0
        mpp = no
  }
 Module: Linked to module rlm_files
 Module: Instantiating module "authorized_macs" from file /etc/raddb/modules/files
  files authorized_macs {
        usersfile = "/etc/raddb/authorized_macs"
        compat = "no"
        key = "%{Calling-Station-ID}"
  }
reading pairlist file /etc/raddb/authorized_macs
 Module: Instantiating module "reject" from file /etc/raddb/modules/always
  always reject {
        rcode = "reject"
        simulcount = 0
        mpp = no
  }
 Module: Checking preacct {...} for more modules to load
 Module: Linked to module rlm_acct_unique
 Module: Instantiating module "acct_unique" from file /etc/raddb/modules/acct_unique
  acct_unique {
        key = "User-Name, Acct-Session-Id, NAS-IP-Address, NAS-Identifier, NAS-Port"
  }
 Module: Linked to module rlm_realm
 Module: Instantiating module "suffix" from file /etc/raddb/modules/realm
  realm suffix {
        format = "suffix"
        delimiter = "@"
        ignore_default = no
        ignore_null = no
  }
 Module: Instantiating module "files" from file /etc/raddb/modules/files
  files {
        usersfile = "/etc/raddb/users"
        acctusersfile = "/etc/raddb/acct_users"
        preproxy_usersfile = "/etc/raddb/preproxy_users"
        compat = "no"
  }
reading pairlist file /etc/raddb/users
reading pairlist file /etc/raddb/acct_users
reading pairlist file /etc/raddb/preproxy_users
 Module: Checking accounting {...} for more modules to load
 Module: Linked to module rlm_detail
 Module: Instantiating module "detail" from file /etc/raddb/modules/detail
  detail {
        detailfile = "/var/log/radius/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/raddb/modules/attr_filter
  attr_filter attr_filter.accounting_response {
        attrsfile = "/etc/raddb/attrs.accounting_response"
        key = "%{User-Name}"
        relaxed = no
  }
reading pairlist file /etc/raddb/attrs.accounting_response
 Module: Checking session {...} for more modules to load
 Module: Linked to module rlm_radutmp
 Module: Instantiating module "radutmp" from file /etc/raddb/modules/radutmp
  radutmp {
        filename = "/var/log/radius/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/raddb/modules/attr_filter
  attr_filter attr_filter.access_reject {
        attrsfile = "/etc/raddb/attrs.access_reject"
        key = "%{User-Name}"
        relaxed = no
  }
reading pairlist file /etc/raddb/attrs.access_reject
 } # modules
} # server
server inner-tunnel { # from file /etc/raddb/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 = "control"
 listen {
        socket = "/var/run/radiusd/radiusd.sock"
 }
}
listen {
        type = "auth"
        ipaddr = 127.0.0.1
        port = 18120
}
 ... adding new socket proxy address * port 38386
Listening on authentication address * port 1812
Listening on accounting address * port 1813
Listening on command file /var/run/radiusd/radiusd.sock
Listening on authentication address 127.0.0.1 port 18120 as server inner-tunnel
Listening on proxy address * port 1814
Ready to process requests.
rad_recv: Access-Request packet from host 216.54.247.198 port 10027, id=4, length=163
        User-Name = "a"
        NAS-IP-Address = 192.168.0.137
        NAS-Identifier = "0418d6cee172"
        NAS-Port = 0
        Called-Station-Id = "0A-18-D6-CF-E1-72:xmd-authorized"
        Calling-Station-Id = "00-02-71-D3-44-2B"
        Framed-MTU = 1400
        NAS-Port-Type = Wireless-802.11
        Connect-Info = "CONNECT 0Mbps 802.11b"
        EAP-Message = 0x02cd00060161
        Message-Authenticator = 0xcb2f355e41f81c5808fb38890f50e2e9
# Executing section authorize from file /etc/raddb/sites-enabled/default
+group authorize {
++[preprocess] = ok
++policy rewrite_calling_station_id {
+++? if (Calling-Station-Id =~ /([0-9a-f]{2})[-:]?([0-9a-f]{2})[-:.]?([0-9a-f]{2})[-:]?([0-9a-f]{2})[-:.]?([0-9a-f]{2})[-:]?([0-9a-f]{2})/i)
? Evaluating (Calling-Station-Id =~ /([0-9a-f]{2})[-:]?([0-9a-f]{2})[-:.]?([0-9a-f]{2})[-:]?([0-9a-f]{2})[-:.]?([0-9a-f]{2})[-:]?([0-9a-f]{2})/i) -> TRUE
+++? if (Calling-Station-Id =~ /([0-9a-f]{2})[-:]?([0-9a-f]{2})[-:.]?([0-9a-f]{2})[-:]?([0-9a-f]{2})[-:.]?([0-9a-f]{2})[-:]?([0-9a-f]{2})/i) -> TRUE
+++if (Calling-Station-Id =~ /([0-9a-f]{2})[-:]?([0-9a-f]{2})[-:.]?([0-9a-f]{2})[-:]?([0-9a-f]{2})[-:.]?([0-9a-f]{2})[-:]?([0-9a-f]{2})/i) {
++++update request {
        expand: %{1}-%{2}-%{3}-%{4}-%{5}-%{6} -> 00-02-71-D3-44-2B
        expand: %{tolower:%{1}-%{2}-%{3}-%{4}-%{5}-%{6}} -> 00-02-71-d3-44-2b
++++} # update request = noop
+++} # if (Calling-Station-Id =~ /([0-9a-f]{2})[-:]?([0-9a-f]{2})[-:.]?([0-9a-f]{2})[-:]?([0-9a-f]{2})[-:.]?([0-9a-f]{2})[-:]?([0-9a-f]{2})/i) = noop
+++ ... skipping else for request 0: Preceding "if" was taken
++} # policy rewrite_calling_station_id = noop
[authorized_macs]       expand: %{Calling-Station-ID} -> 00-02-71-d3-44-2b
[authorized_macs] users: Matched entry 00-02-71-d3-44-2b at line 1
[authorized_macs]       expand: Mike's Android phone with MAC %{Calling-Station-Id} authorized for network access -> Mike's Android phone with MAC 00-02-71-d3-44-2b authorized for network access
++[authorized_macs] = ok
++? if (!ok)
? Evaluating !(ok) -> FALSE
++? if (!ok) -> FALSE
++else else {
+++update control {
+++} # update control = noop
++} # else else = noop
+} # group authorize = ok
Found Auth-Type = Accept
Auth-Type = Accept, accepting the user
# Executing section post-auth from file /etc/raddb/sites-enabled/default
+group post-auth {
++[exec] = noop
+} # group post-auth = noop
Sending Access-Accept of id 4 to 216.54.247.198 port 10027
        Reply-Message = "Mike's Android phone with MAC 00-02-71-d3-44-2b authorized for network access"
Finished request 0.
Going to the next request
Waking up in 4.9 seconds.
Cleaning up request 0 ID 4 with timestamp +207
Ready to process requests.
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Plain Mac-Auth - server accepts but client does not connect

Michael Linder