Discussion:
radiusd server does not respond to radtest from another host
m***@aol.com
2009-03-07 16:06:10 UTC
Permalink
Hi All,

I installed FreeRADIUS Version 2.1.1, for host i686-suse-linux-gnu on OpenSuse 11.1 using Yast. I am having problems testing the radius server 10.10.10.11 from an external host 10.10.10.10 using radtest.

Background: I configured clients.conf, users and radiusd.conf. After changing permissions on the /etc/radb/certs directory I was able to start "radiusd -X" without any?reported errors, warnings.

I then successfully tested locally using radtest in another terminal window?on the radius server (IP = 10.10.10.11)

linux-au5f:/home/michael # radtest pencil richard6 10.10.10.11 0 testing123
Sending Access-Request of id 63 to 10.10.10.11 port 1812
?User-Name = "pencil"
?User-Password = "richard6"
?NAS-IP-Address = 127.0.0.2
?NAS-Port = 0
rad_recv: Access-Accept packet from host 10.10.10.11 port 1812, id=63, length=35
?Reply-Message = "Hello, pencil"

Next I tried testing radiusd using radtest from a 2nd host (10.10.10.10), which I had added previously added to the clients.conf (Note I can successfully ping the radius server 10.10.10.11 from this 2nd host 10.10.10.10).?But, I get no response from radius acc-request on either the radiusd terminal window or the radtest terminal window.

Below is the clients.conf definitiion

?client dellM65 {
?ipaddr = 10.10.10.10
?require_message_authenticator = no
?secret = "testing123"
?nastype = "other"
?}

I did a capture with Wireshark and I can see the radius request, but no responses. Have I missed some part of the Freeradius config to recognize the external radtest host?

I have attached some output to hopefully answer anything not described above.

Attached is the radiusd -X output

FreeRADIUS Version 2.1.1, for host i686-suse-linux-gnu, built on Dec? 3 2008 at 10:47:13
Copyright (C) 1999-2008 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/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/exec
including configuration file /etc/raddb/modules/inner-eap
including configuration file /etc/raddb/modules/sql_log
including configuration file /etc/raddb/modules/ippool
including configuration file /etc/raddb/modules/radutmp
including configuration file /etc/raddb/modules/preprocess
including configuration file /etc/raddb/modules/detail.example.com
including configuration file /etc/raddb/modules/krb5
including configuration file /etc/raddb/modules/passwd
including configuration file /etc/raddb/modules/logintime
including configuration file /etc/raddb/modules/counter
including configuration file /etc/raddb/modules/pap
including configuration file /etc/raddb/modules/detail
including configuration file /etc/raddb/modules/chap
including configuration file /etc/raddb/modules/files
including configuration file /etc/raddb/modules/attr_filter
including configuration file /etc/raddb/modules/unix
including configuration file /etc/raddb/modules/always
including configuration file /etc/raddb/modules/linelog
including configuration file /etc/raddb/modules/policy
including configuration file /etc/raddb/modules/attr_rewrite
including configuration file /etc/raddb/modules/checkval
including configuration file /etc/raddb/modules/echo
including configuration file /etc/raddb/modules/expr
including configuration file /etc/raddb/modules/digest
including configuration file /etc/raddb/modules/wimax
including configuration file /etc/raddb/modules/acct_unique
including configuration file /etc/raddb/modules/etc_group
including configuration file /etc/raddb/modules/sradutmp
including configuration file /etc/raddb/modules/mac2vlan
including configuration file /etc/raddb/modules/mac2ip
including configuration file /etc/raddb/modules/realm
including configuration file /etc/raddb/modules/expiration
including configuration file /etc/raddb/modules/mschap
including configuration file /etc/raddb/modules/smbpasswd
including configuration file /etc/raddb/modules/detail.log
including configuration file /etc/raddb/modules/pam
including configuration file /etc/raddb/modules/ldap
including configuration file /etc/raddb/eap.conf
including configuration file /etc/raddb/sql.conf
including configuration file /etc/raddb/sql/mysql/dialup.conf
including configuration file /etc/raddb/sql/mysql/counter.conf
including configuration file /etc/raddb/policy.conf
including files in directory /etc/raddb/sites-enabled/
including configuration file /etc/raddb/sites-enabled/default
including configuration file /etc/raddb/sites-enabled/inner-tunnel
group = radiusd
user = radiusd
including dictionary file /etc/raddb/dictionary
main {
?prefix = "/usr"
?localstatedir = "/var"
?logdir = "/var/log/radius"
?libdir = "/usr/lib/freeradius"
?radacctdir = "/var/log/radius/radacct"
?hostname_lookups = no
?max_request_time = 30
?cleanup_delay = 5
?max_requests = 1024
?allow_core_dumps = no
?pidfile = "/var/run/radiusd/radiusd.pid"
?checkrad = "/usr/sbin/checkrad"
?debug_level = 0
?proxy_requests = yes
?log {
?stripped_names = yes
?auth = yes
?auth_badpass = yes
?auth_goodpass = yes
?}
?security {
?max_attributes = 200
?reject_delay = 1
?status_server = yes
?}
}
?client localhost {
?ipaddr = 127.0.0.1
?require_message_authenticator = no
?secret = "testing123"
?nastype = "other"
?}
?client 10.10.10.11 {
?require_message_authenticator = no
?secret = "testing123"
?shortname = "liv1"
?}
?client dellM65 {
?ipaddr = 10.10.10.10
?require_message_authenticator = no
?secret = "testing123"
?nastype = "other"
?}
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
?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
?}
?home_server_pool my_auth_failover {
?type = fail-over
?home_server = localhost
?}
?realm example.com {
?auth_pool = my_auth_failover
?}
?realm LOCAL {
?}
radiusd: #### Instantiating modules ####
?instantiate {
?Module: Linked to module rlm_exec
?Module: Instantiating exec
? exec {
?wait = no
?input_pairs = "request"
?shell_escape = yes
? }
?Module: Linked to module rlm_expr
?Module: Instantiating expr
?Module: Linked to module rlm_expiration
?Module: Instantiating expiration
? expiration {
?reply-message = "Password Has Expired? "
? }
?Module: Linked to module rlm_logintime
?Module: Instantiating logintime
? logintime {
?reply-message = "You are calling outside your allowed timespan? "
?minimum-timeout = 60
? }
?}
radiusd: #### Loading Virtual Servers ####
server inner-tunnel {
?modules {
?Module: Checking authenticate {...} for more modules to load
?Module: Linked to module rlm_pap
?Module: Instantiating pap
? pap {
?encryption_scheme = "auto"
?auto_header = no
? }
?Module: Linked to module rlm_chap
?Module: Instantiating chap
?Module: Linked to module rlm_mschap
?Module: Instantiating mschap
? mschap {
?use_mppe = yes
?require_encryption = no
?require_strong = no
?with_ntdomain_hack = no
? }
?Module: Linked to module rlm_unix
?Module: Instantiating unix
? unix {
?radwtmp = "/var/log/radius/radwtmp"
? }
?Module: Linked to module rlm_eap
?Module: Instantiating eap
? eap {
?default_eap_type = "md5"
?timer_expire = 60
?ignore_unknown_eap_types = no
?cisco_accounting_username_bug = no
?max_sessions = 2048
? }
?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
?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"
?random_file = "/etc/raddb/certs/random"
?fragment_size = 1024
?include_length = yes
?check_crl = no
?cipher_list = "DEFAULT"
?make_cert_command = "/etc/raddb/certs/bootstrap"
??? cache {
?enable = no
?lifetime = 24
?max_entries = 255
??? }
?? }
?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"
?? }
?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"
?? }
?Module: Linked to sub-module rlm_eap_mschapv2
?Module: Instantiating eap-mschapv2
?? mschapv2 {
?with_ntdomain_hack = no
?? }
?Module: Checking authorize {...} for more modules to load
?Module: Linked to module rlm_realm
?Module: Instantiating suffix
? realm suffix {
?format = "suffix"
?delimiter = "@"
?ignore_default = no
?ignore_null = no
? }
?Module: Linked to module rlm_files
?Module: Instantiating files
? files {
?usersfile = "/etc/raddb/users"
?acctusersfile = "/etc/raddb/acct_users"
?preproxy_usersfile = "/etc/raddb/preproxy_users"
?compat = "no"
? }
?Module: Checking session {...} for more modules to load
?Module: Linked to module rlm_radutmp
?Module: Instantiating 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: Linked to module rlm_attr_filter
?Module: Instantiating attr_filter.access_reject
? attr_filter attr_filter.access_reject {
?attrsfile = "/etc/raddb/attrs.access_reject"
?key = "%{User-Name}"
? }
?}
}
?modules {
?Module: Checking authenticate {...} for more modules to load
?Module: Checking authorize {...} for more modules to load
?Module: Linked to module rlm_preprocess
?Module: Instantiating 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
? }
?Module: Checking preacct {...} for more modules to load
?Module: Linked to module rlm_acct_unique
?Module: Instantiating acct_unique
? acct_unique {
?key = "User-Name, Acct-Session-Id, NAS-IP-Address, Client-IP-Address, NAS-Port"
? }
?Module: Checking accounting {...} for more modules to load
?Module: Linked to module rlm_detail
?Module: Instantiating detail
? detail {
?detailfile = "/var/log/radius/radacct/%{Client-IP-Address}/detail-%Y%m%d"
?header = "%t"
?detailperm = 384
?dirperm = 493
?locking = no
?log_packet_header = no
? }
?Module: Instantiating attr_filter.accounting_response
? attr_filter attr_filter.accounting_response {
?attrsfile = "/etc/raddb/attrs.accounting_response"
?key = "%{User-Name}"
? }
?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
?}
radiusd: #### Opening IP addresses and Ports ####
listen {
?type = "auth"
?ipaddr = 10.10.10.11
?port = 1812
}
listen {
?type = "acct"
?ipaddr = *
?port = 0
}
Listening on authentication address 10.10.10.11 port 1812
Listening on accounting address * port 1813
Listening on proxy address 10.10.10.11 port 1814
Ready to process requests.


Attached is wireshark capture on the radius server (10.10.10.11) showing the packet arrives from the rad test client (10.10.10.10)

No.???? Time??????? Source??????????????? Destination?????????? Protocol Info
????? 2 2.997586??? 10.10.10.10?????????? 10.10.10.11?????????? RADIUS?? Access-Request(1) (id=241, l=58), Duplicate Request ID:241

Frame 2 (100 bytes on wire, 100 bytes captured)
??? Arrival Time: Mar? 7, 2009 10:02:20.966147000
??? [Time delta from previous captured frame: 2.997586000 seconds]
??? [Time delta from previous displayed frame: 2.997586000 seconds]
??? [Time since reference or first frame: 2.997586000 seconds]
??? Frame Number: 2
??? Frame Length: 100 bytes
??? Capture Length: 100 bytes
??? [Frame is marked: False]
??? [Protocols in frame: eth:ip:udp:radius]
??? [Coloring Rule Name: UDP]
??? [Coloring Rule String: udp]
Ethernet II, Src: 3com_ac:0a:0c (00:50:da:ac:0a:0c), Dst: DellPcba_78:86:32 (00:0d:56:78:86:32)
??? Destination: DellPcba_78:86:32 (00:0d:56:78:86:32)
??????? Address: DellPcba_78:86:32 (00:0d:56:78:86:32)
??????? .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
??????? .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
??? Source: 3com_ac:0a:0c (00:50:da:ac:0a:0c)
??????? Address: 3com_ac:0a:0c (00:50:da:ac:0a:0c)
??????? .... ...0 .... .... .... .... = IG bit: Individual address (unicast)
??????? .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)
??? Type: IP (0x0800)
Internet Protocol, Src: 10.10.10.10 (10.10.10.10), Dst: 10.10.10.11 (10.10.10.11)
??? Version: 4
??? Header length: 20 bytes
??? Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
??????? 0000 00.. = Differentiated Services Codepoint: Default (0x00)
??????? .... ..0. = ECN-Capable Transport (ECT): 0
??????? .... ...0 = ECN-CE: 0
??? Total Length: 86
??? Identification: 0x0000 (0)
??? Flags: 0x04 (Don't Fragment)
??????? 0... = Reserved bit: Not set
??????? .1.. = Don't fragment: Set
??????? ..0. = More fragments: Not set
??? Fragment offset: 0
??? Time to live: 64
??? Protocol: UDP (0x11)
??? Header checksum: 0x126f [correct]
??????? [Good: True]
??????? [Bad : False]
??? Source: 10.10.10.10 (10.10.10.10)
??? Destination: 10.10.10.11 (10.10.10.11)
User Datagram Protocol, Src Port: 47970 (47970), Dst Port: radius (1812)
??? Source port: 47970 (47970)
??? Destination port: radius (1812)
??? Length: 66
??? Checksum: 0xc264 [correct]
??????? [Good Checksum: True]
??????? [Bad Checksum: False]
Radius Protocol
??? Code: Access-Request (1)
??? Packet identifier: 0xf1 (241)
??? Length: 58
??? Authenticator: DF4A578FEB08708AEFEA3236CA37650C
??? [Duplicate Request: 241]
??? Attribute Value Pairs
??????? AVP: l=8? t=User-Name(1): pencil
??????????? User-Name: pencil
??????? AVP: l=18? t=User-Password(2): Encrypted
??????????? User-Password: \267\017U\227\320\216\305\y\373\314\377\306\316\350\255
??????? AVP: l=6? t=NAS-IP-Address(4): 127.0.0.2
??????????? NAS-IP-Address: 127.0.0.2 (127.0.0.2)
??????? AVP: l=6? t=NAS-Port(5): 0
??????????? NAS-Port: 0
A***@lboro.ac.uk
2009-03-07 19:29:05 UTC
Permalink
Hi,
Post by m***@aol.com
Next I tried testing radiusd using radtest from a 2nd host (10.10.10.10), which I had added previously added to the clients.conf (Note I can successfully ping the radius server 10.10.10.11 from this 2nd host 10.10.10.10).?But, I get no response from radius acc-request on either the radiusd terminal window or the radtest terminal window.
just like another current thread - have a couple of terminal windows
opn.

in one, run

tcpdump -eqnnntl -i eth0 port 1812 (change eth0 if necessary)

in the other, run

radiusd -X


now, run the test. does anything show packets? have you enabled
the firewall to allow port 1812 inbound from 10.10.10.10?


alan
-
List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html
m***@aol.com
2009-03-08 01:57:26 UTC
Permalink
Hi Alan,

Thanks for the response. My original email was very lengthy, but at the bottom you can see a wireshark capture showing the packet arrival. (My understanding is wireshark is a pretty GUI based on tcpdump)

What is strange is I tried to do the test in the reverse direction and it works i.e.

10.10.10.11 = radisusd server <=== 10.10.10.10 = radtest client

Does not work

10.10.10.11 = radtest client ===> 10.10.10.10 = radiusd server

Works


The host 10.10.10.11 is running 32 bit OpenSuse 11.1
while host 10.10.10.10 is running 64bit OpenSuse 11.1

I have fallen back to default install with only the following files [edits users & clients.conf] (to reflect the opposite endpoints)

So far the 32 bit machine appears to be silently dead as far as radiusd



Date: Sat, 7 Mar 2009 19:29:05 +0000
From: ***@lboro.ac.uk
Subject: Re: radiusd server does not respond to radtest from another
host
To: FreeRadius users mailing list
<freeradius-***@lists.freeradius.org>
Message-ID: <***@lboro.ac.uk>
Content-Type: text/plain; charset=us-ascii

Hi,
Post by m***@aol.com
Next I tried testing radiusd using radtest from a 2nd host (10.10.10.10),
which I had added previously added to the clients.conf (Note I can successfully
ping the radius server 10.10.10.11 from this 2nd host 10.10.10.10).?But, I get
no response from radius acc-request on either the radiusd terminal window or the
radtest terminal window.

just like another current thread - have a couple of terminal windows
opn.

in one, run

tcpdump -eqnnntl -i eth0 port 1812 (change eth0 if necessary)

in the other, run

radiusd -X


now, run the test. does anything show packets? have you enabled
the firewall to allow port 1812 inbound from 10.10.10.10?


alan
















-----Original Message-----

From: ***@aol.com

To: freeradius-***@lists.freeradius.org

Sent: Sat, 7 Mar 2009 11:06 am

Subject: radiusd server does not respond to radtest from another host


















Attached is wireshark capture on the radius server (10.10.10.11) showing the packet arrives from the rad test client (10.10.10.10)





No.???? Time??????? Source??????????????? Destination?????????? Protocol Info


????? 2 2.997586??? 10.10.10.10?????????? 10.10.10.11?????????? RADIUS?? Access-Request(1) (id=241, l=58), Duplicate Request ID:241






Frame 2 (100 bytes on wire, 100 bytes captured)


??? Arrival Time: Mar? 7, 2009 10:02:20.966147000


??? [Time delta from previous captured frame: 2.997586000 seconds]


??? [Time delta from previous displayed frame: 2.997586000 seconds]


??? [Time since reference or first frame: 2.997586000 seconds]


??? Frame Number: 2


??? Frame Length: 100 bytes


??? Capture Length: 100 bytes


??? [Frame is marked: False]


??? [Protocols in frame: eth:ip:udp:radius]


??? [Coloring Rule Name: UDP]


??? [Coloring Rule String: udp]


Ethernet II, Src: 3com_ac:0a:0c (00:50:da:ac:0a:0c), Dst: DellPcba_78:86:32 (00:0d:56:78:86:32)


??? Destination: DellPcba_78:86:32 (00:0d:56:78:86:32)


??????? Address: DellPcba_78:86:32 (00:0d:56:78:86:32)


??????? .... ...0 .... .... .... .... = IG bit: Individual address (unicast)


??????? .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)


??? Source: 3com_ac:0a:0c (00:50:da:ac:0a:0c)


??????? Address: 3com_ac:0a:0c (00:50:da:ac:0a:0c)


??????? .... ...0 .... .... .... .... = IG bit: Individual address (unicast)


??????? .... ..0. .... .... .... .... = LG bit: Globally unique address (factory default)


??? Type: IP (0x0800)


Internet Protocol, Src: 10.10.10.10 (10.10.10.10), Dst: 10.10.10.11 (10.10.10.11)


??? Version: 4


??? Header length: 20 bytes


??? Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)


??????? 0000 00.. = Differentiated Services Codepoint: Default (0x00)


??????? .... ..0. = ECN-Capable Transport (ECT): 0


??????? .... ...0 = ECN-CE: 0


??? Total Length: 86


??? Identification: 0x0000 (0)


??? Flags: 0x04 (Don't Fragment)


??????? 0... = Reserved bit: Not set


??????? .1.. = Don't fragment: Set


??????? ..0. = More fragments: Not set


??? Fragment offset: 0


??? Time to live: 64


??? Protocol: UDP (0x11)


??? Header checksum: 0x126f [correct]


??????? [Good: True]


??????? [Bad : False]


??? Source: 10.10.10.10 (10.10.10.10)


??? Destination: 10.10.10.11 (10.10.10.11)


User Datagram Protocol, Src Port: 47970 (47970), Dst Port: radius (1812)


??? Source port: 47970 (47970)


??? Destination port: radius (1812)


??? Length: 66


??? Checksum: 0xc264 [correct]


??????? [Good Checksum: True]


??????? [Bad Checksum: False]


Radius Protocol


??? Code: Access-Request (1)


??? Packet identifier: 0xf1 (241)


??? Length: 58


??? Authenticator: DF4A578FEB08708AEFEA3236CA37650C


??? [Duplicate Request: 241]


??? Attribute Value Pairs


??????? AVP: l=8? t=User-Name(1): pencil


??????????? User-Name: pencil


??????? AVP: l=18? t=User-Password(2): Encrypted


??????????? User-Password: \267\017U\227\320\216\305\y\373\314\377\306\316\350\255


??????? AVP: l=6? t=NAS-IP-Address(4): 127.0.0.2


??????????? NAS-IP-Address: 127.0.0.2 (127.0.0.2)


??????? AVP: l=6? t=NAS-Port(5): 0


??????????? NAS-Port: 0









?












?








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t***@kalik.net
2009-03-08 13:17:10 UTC
Permalink
Post by m***@aol.com
Thanks for the response. My original email was very lengthy, but at the bottom you can see a wireshark capture showing the packet arrival. (My understanding is wireshark is a pretty GUI based on tcpdump)
Yes, it arrived but can't get through the firewall. You say you are
using default freeradius configuration, so you haven't done anything
strange to listen section to cause this - it has to be tha firewall.

Ivan Kalik
Kalik Informatika ISP

-
List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html
Tim Sylvester
2009-03-08 03:32:12 UTC
Permalink
Something may be wacky with the network configuration on the 10.10.10.10
machine. The packet capture shows that the NAS-IP-Address attribute is set
to 127.0.0.2 but it should be 10.10.10.10. Since 127.0.0.2 is not in
clients.conf, the request will be ignored. Try running radtest with the
following options



radtest pencil richard6 10.10.10.11 0 testing123 1 10.10.10.10



If you still have a problem, send the following additional information .



1. The rest of the debug output from radiusd -X on the 10.10.10.11
machine. The output at the bottom of this message only shows that startup of
radiusd.

2. The output from radtest when you run it on 10.10.10.11.

3. The output from radtest when you run it on 10.10.10.10.

Tim



From:
freeradius-users-bounces+tim.sylvester=***@lists.freeradius.or
g
[mailto:freeradius-users-bounces+tim.sylvester=***@lists.freer
adius.org] On Behalf Of ***@aol.com
Sent: Saturday, March 07, 2009 8:06 AM
To: freeradius-***@lists.freeradius.org
Subject: radiusd server does not respond to radtest from another host



Hi All,

I installed FreeRADIUS Version 2.1.1, for host i686-suse-linux-gnu on
OpenSuse 11.1 using Yast. I am having problems testing the radius server
10.10.10.11 from an external host 10.10.10.10 using radtest.

Background: I configured clients.conf, users and radiusd.conf. After
changing permissions on the /etc/radb/certs directory I was able to start
"radiusd -X" without any reported errors, warnings.

I then successfully tested locally using radtest in another terminal window
on the radius server (IP = 10.10.10.11)

linux-au5f:/home/michael # radtest pencil richard6 10.10.10.11 0 testing123
Sending Access-Request of id 63 to 10.10.10.11 port 1812
User-Name = "pencil"
User-Password = "richard6"
NAS-IP-Address = 127.0.0.2
NAS-Port = 0
rad_recv: Access-Accept packet from host 10.10.10.11 port 1812, id=63,
length=35
Reply-Message = "Hello, pencil"

Next I tried testing radiusd using radtest from a 2nd host (10.10.10.10),
which I had added previously added to the clients.conf (Note I can
successfully ping the radius server 10.10.10.11 from this 2nd host
10.10.10.10). But, I get no response from radius acc-request on either the
radiusd terminal window or the radtest terminal window.

Below is the clients.conf definitiion

client dellM65 {
ipaddr = 10.10.10.10
require_message_authenticator = no
secret = "testing123"
nastype = "other"
}

I did a capture with Wireshark and I can see the radius request, but no
responses. Have I missed some part of the Freeradius config to recognize the
external radtest host?

I have attached some output to hopefully answer anything not described
above.

Attached is the radiusd -X output

FreeRADIUS Version 2.1.1, for host i686-suse-linux-gnu, built on Dec 3 2008
at 10:47:13
Copyright (C) 1999-2008 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/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/exec
including configuration file /etc/raddb/modules/inner-eap
including configuration file /etc/raddb/modules/sql_log
including configuration file /etc/raddb/modules/ippool
including configuration file /etc/raddb/modules/radutmp
including configuration file /etc/raddb/modules/preprocess
including configuration file /etc/raddb/modules/detail.example.com
including configuration file /etc/raddb/modules/krb5
including configuration file /etc/raddb/modules/passwd
including configuration file /etc/raddb/modules/logintime
including configuration file /etc/raddb/modules/counter
including configuration file /etc/raddb/modules/pap
including configuration file /etc/raddb/modules/detail
including configuration file /etc/raddb/modules/chap
including configuration file /etc/raddb/modules/files
including configuration file /etc/raddb/modules/attr_filter
including configuration file /etc/raddb/modules/unix
including configuration file /etc/raddb/modules/always
including configuration file /etc/raddb/modules/linelog
including configuration file /etc/raddb/modules/policy
including configuration file /etc/raddb/modules/attr_rewrite
including configuration file /etc/raddb/modules/checkval
including configuration file /etc/raddb/modules/echo
including configuration file /etc/raddb/modules/expr
including configuration file /etc/raddb/modules/digest
including configuration file /etc/raddb/modules/wimax
including configuration file /etc/raddb/modules/acct_unique
including configuration file /etc/raddb/modules/etc_group
including configuration file /etc/raddb/modules/sradutmp
including configuration file /etc/raddb/modules/mac2vlan
including configuration file /etc/raddb/modules/mac2ip
including configuration file /etc/raddb/modules/realm
including configuration file /etc/raddb/modules/expiration
including configuration file /etc/raddb/modules/mschap
including configuration file /etc/raddb/modules/smbpasswd
including configuration file /etc/raddb/modules/detail.log
including configuration file /etc/raddb/modules/pam
including configuration file /etc/raddb/modules/ldap
including configuration file /etc/raddb/eap.conf
including configuration file /etc/raddb/sql.conf
including configuration file /etc/raddb/sql/mysql/dialup.conf
including configuration file /etc/raddb/sql/mysql/counter.conf
including configuration file /etc/raddb/policy.conf
including files in directory /etc/raddb/sites-enabled/
including configuration file /etc/raddb/sites-enabled/default
including configuration file /etc/raddb/sites-enabled/inner-tunnel
group = radiusd
user = radiusd
including dictionary file /etc/raddb/dictionary
main {
prefix = "/usr"
localstatedir = "/var"
logdir = "/var/log/radius"
libdir = "/usr/lib/freeradius"
radacctdir = "/var/log/radius/radacct"
hostname_lookups = no
max_request_time = 30
cleanup_delay = 5
max_requests = 1024
allow_core_dumps = no
pidfile = "/var/run/radiusd/radiusd.pid"
checkrad = "/usr/sbin/checkrad"
debug_level = 0
proxy_requests = yes
log {
stripped_names = yes
auth = yes
auth_badpass = yes
auth_goodpass = yes
}
security {
max_attributes = 200
reject_delay = 1
status_server = yes
}
}
client localhost {
ipaddr = 127.0.0.1
require_message_authenticator = no
secret = "testing123"
nastype = "other"
}
client 10.10.10.11 {
require_message_authenticator = no
secret = "testing123"
shortname = "liv1"
}
client dellM65 {
ipaddr = 10.10.10.10
require_message_authenticator = no
secret = "testing123"
nastype = "other"
}
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
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
}
home_server_pool my_auth_failover {
type = fail-over
home_server = localhost
}
realm example.com {
auth_pool = my_auth_failover
}
realm LOCAL {
}
radiusd: #### Instantiating modules ####
instantiate {
Module: Linked to module rlm_exec
Module: Instantiating exec
exec {
wait = no
input_pairs = "request"
shell_escape = yes
}
Module: Linked to module rlm_expr
Module: Instantiating expr
Module: Linked to module rlm_expiration
Module: Instantiating expiration
expiration {
reply-message = "Password Has Expired "
}
Module: Linked to module rlm_logintime
Module: Instantiating logintime
logintime {
reply-message = "You are calling outside your allowed timespan "
minimum-timeout = 60
}
}
radiusd: #### Loading Virtual Servers ####
server inner-tunnel {
modules {
Module: Checking authenticate {...} for more modules to load
Module: Linked to module rlm_pap
Module: Instantiating pap
pap {
encryption_scheme = "auto"
auto_header = no
}
Module: Linked to module rlm_chap
Module: Instantiating chap
Module: Linked to module rlm_mschap
Module: Instantiating mschap
mschap {
use_mppe = yes
require_encryption = no
require_strong = no
with_ntdomain_hack = no
}
Module: Linked to module rlm_unix
Module: Instantiating unix
unix {
radwtmp = "/var/log/radius/radwtmp"
}
Module: Linked to module rlm_eap
Module: Instantiating eap
eap {
default_eap_type = "md5"
timer_expire = 60
ignore_unknown_eap_types = no
cisco_accounting_username_bug = no
max_sessions = 2048
}
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
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"
random_file = "/etc/raddb/certs/random"
fragment_size = 1024
include_length = yes
check_crl = no
cipher_list = "DEFAULT"
make_cert_command = "/etc/raddb/certs/bootstrap"
cache {
enable = no
lifetime = 24
max_entries = 255
}
}
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"
}
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"
}
Module: Linked to sub-module rlm_eap_mschapv2
Module: Instantiating eap-mschapv2
mschapv2 {
with_ntdomain_hack = no
}
Module: Checking authorize {...} for more modules to load
Module: Linked to module rlm_realm
Module: Instantiating suffix
realm suffix {
format = "suffix"
delimiter = "@"
ignore_default = no
ignore_null = no
}
Module: Linked to module rlm_files
Module: Instantiating files
files {
usersfile = "/etc/raddb/users"
acctusersfile = "/etc/raddb/acct_users"
preproxy_usersfile = "/etc/raddb/preproxy_users"
compat = "no"
}
Module: Checking session {...} for more modules to load
Module: Linked to module rlm_radutmp
Module: Instantiating 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: Linked to module rlm_attr_filter
Module: Instantiating attr_filter.access_reject
attr_filter attr_filter.access_reject {
attrsfile = "/etc/raddb/attrs.access_reject"
key = "%{User-Name}"
}
}
}
modules {
Module: Checking authenticate {...} for more modules to load
Module: Checking authorize {...} for more modules to load
Module: Linked to module rlm_preprocess
Module: Instantiating 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
}
Module: Checking preacct {...} for more modules to load
Module: Linked to module rlm_acct_unique
Module: Instantiating acct_unique
acct_unique {
key = "User-Name, Acct-Session-Id, NAS-IP-Address, Client-IP-Address,
NAS-Port"
}
Module: Checking accounting {...} for more modules to load
Module: Linked to module rlm_detail
Module: Instantiating detail
detail {
detailfile = "/var/log/radius/radacct/%{Client-IP-Address}/detail-%Y%m%d"
header = "%t"
detailperm = 384
dirperm = 493
locking = no
log_packet_header = no
}
Module: Instantiating attr_filter.accounting_response
attr_filter attr_filter.accounting_response {
attrsfile = "/etc/raddb/attrs.accounting_response"
key = "%{User-Name}"
}
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
}
radiusd: #### Opening IP addresses and Ports ####
listen {
type = "auth"
ipaddr = 10.10.10.11
port = 1812
}
listen {
type = "acct"
ipaddr = *
port = 0
}
Listening on authentication address 10.10.10.11 port 1812
Listening on accounting address * port 1813
Listening on proxy address 10.10.10.11 port 1814
Ready to process requests.


Attached is wireshark capture on the radius server (10.10.10.11) showing the
packet arrives from the rad test client (10.10.10.10)

No. Time Source Destination Protocol
Info
2 2.997586 10.10.10.10 10.10.10.11 RADIUS
Access-Request(1) (id=241, l=58), Duplicate Request ID:241

Frame 2 (100 bytes on wire, 100 bytes captured)
Arrival Time: Mar 7, 2009 10:02:20.966147000
[Time delta from previous captured frame: 2.997586000 seconds]
[Time delta from previous displayed frame: 2.997586000 seconds]
[Time since reference or first frame: 2.997586000 seconds]
Frame Number: 2
Frame Length: 100 bytes
Capture Length: 100 bytes
[Frame is marked: False]
[Protocols in frame: eth:ip:udp:radius]
[Coloring Rule Name: UDP]
[Coloring Rule String: udp]
Ethernet II, Src: 3com_ac:0a:0c (00:50:da:ac:0a:0c), Dst: DellPcba_78:86:32
(00:0d:56:78:86:32)
Destination: DellPcba_78:86:32 (00:0d:56:78:86:32)
Address: DellPcba_78:86:32 (00:0d:56:78:86:32)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
.... ..0. .... .... .... .... = LG bit: Globally unique address
(factory default)
Source: 3com_ac:0a:0c (00:50:da:ac:0a:0c)
Address: 3com_ac:0a:0c (00:50:da:ac:0a:0c)
.... ...0 .... .... .... .... = IG bit: Individual address (unicast)
.... ..0. .... .... .... .... = LG bit: Globally unique address
(factory default)
Type: IP (0x0800)
Internet Protocol, Src: 10.10.10.10 (10.10.10.10), Dst: 10.10.10.11
(10.10.10.11)
Version: 4
Header length: 20 bytes
Differentiated Services Field: 0x00 (DSCP 0x00: Default; ECN: 0x00)
0000 00.. = Differentiated Services Codepoint: Default (0x00)
.... ..0. = ECN-Capable Transport (ECT): 0
.... ...0 = ECN-CE: 0
Total Length: 86
Identification: 0x0000 (0)
Flags: 0x04 (Don't Fragment)
0... = Reserved bit: Not set
.1.. = Don't fragment: Set
..0. = More fragments: Not set
Fragment offset: 0
Time to live: 64
Protocol: UDP (0x11)
Header checksum: 0x126f [correct]
[Good: True]
[Bad : False]
Source: 10.10.10.10 (10.10.10.10)
Destination: 10.10.10.11 (10.10.10.11)
User Datagram Protocol, Src Port: 47970 (47970), Dst Port: radius (1812)
Source port: 47970 (47970)
Destination port: radius (1812)
Length: 66
Checksum: 0xc264 [correct]
[Good Checksum: True]
[Bad Checksum: False]
Radius Protocol
Code: Access-Request (1)
Packet identifier: 0xf1 (241)
Length: 58
Authenticator: DF4A578FEB08708AEFEA3236CA37650C
[Duplicate Request: 241]
Attribute Value Pairs
AVP: l=8 t=User-Name(1): pencil
User-Name: pencil
AVP: l=18 t=User-Password(2): Encrypted
User-Password:
\267\017U\227\320\216\305\y\373\314\377\306\316\350\255
AVP: l=6 t=NAS-IP-Address(4): 127.0.0.2
NAS-IP-Address: 127.0.0.2 (127.0.0.2)
AVP: l=6 t=NAS-Port(5): 0
NAS-Port: 0









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t***@kalik.net
2009-03-08 13:25:31 UTC
Permalink
Post by Tim Sylvester
Something may be wacky with the network configuration on the 10.10.10.10
machine. The packet capture shows that the NAS-IP-Address attribute is set
to 127.0.0.2 but it should be 10.10.10.10.
I second that. Who knows what's going on with .11 as well.
Post by Tim Sylvester
Since 127.0.0.2 is not in
clients.conf, the request will be ignored. Try running radtest with the
following options
radtest pencil richard6 10.10.10.11 0 testing123 1 10.10.10.10
Freeradius is smarter than that. You can't spoof it that easily. It will
look up packet source IP and check that against clients.conf. You can
change NAS-IP-Address to whatever you like it will still check for the
client as address from which packet was sent. This is a security feature.

Ivan Kalik
Kalik Informatika ISP

-
List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html
m***@aol.com
2009-03-09 13:08:12 UTC
Permalink
[>Thanks for the response. My original email was very lengthy, but at the bottom
you can see a wireshark capture showing the packet arrival. (My understanding is
wireshark is a pretty GUI based on tcpdump)
Yes, it arrived but can't get through the firewall. You say you are
using default freeradius configuration, so you haven't done anything
strange to listen section to cause this - it has to be tha firewall.]

OK, I'll investigate the firewall this morning - I am new to openSUSE so I don't know where that is but hopefully google will point me in the right direction.

FYI - I uninstalled both installations, removed all the files under /etc/raddb and reinstalled only editing "users and clients.conf"

What I found is on the 10.10.10.11 machine which has a full 32 bit version of openSUSE 11.1 installed that radiusd did not respond from other host. It did respond to radtest from another terminal window on the same machine

I then started Linux using a openSUSE 64 bit "live CD" on my 10.10.10.10 machine (because its hard drive has windows). In installed the basic packages needed to get freeradius running (C/C++ dev, gnu make etc) - I used an identical "users and client.conf file" with 24 bit mask for clients in 10.10.10.0

On the liveCD host the freeradius server works! - so perhaps it is a lack of firewall?

Note: I alsotraied changing the NAS-ID as suggested in another thread - that did not seem to make any difference 10.10.10.11 did not work with either NAS ID while 10.10.10.10 worked with either

Thanks for the tips - I will cross my fingers it is a firewall setting that is installed by default in openSUSE 11.1
m***@aol.com
2009-03-09 15:10:49 UTC
Permalink
Thanks it was the Linux firewall. I opened UDP ports 1812:1816 and everything works







-----Original Message-----
From: ***@aol.com
To: freeradius-***@lists.freeradius.org
Sent: Mon, 9 Mar 2009 9:08 am
Subject: radiusd server does not respond to radtest from another host












[>Thanks for the response. My original email was very lengthy, but at the bottom

you can see a wireshark capture showing the packet arrival. (My understanding is

wireshark is a pretty GUI based on tcpdump)
Yes, it arrived but can't get through the firewall. You say you are

using default freeradius configuration, so you haven't done anything

strange to listen section to cause this - it has to be tha firewall.]
A***@lboro.ac.uk
2009-03-09 15:14:56 UTC
Permalink
Hi,
Post by m***@aol.com
Thanks it was the Linux firewall. I opened UDP ports 1812:1816 and everything works
any reason for 1815 and 1816 ?

alan
-
List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html
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