Hi, I want to use CHAP for authenticating the user. When I am sending CHAP-Password to FreeRADIUS, I am getting the following error. Found Auth-Type = CHAP +- entering group CHAP {...} [chap] rlm_chap: password supplied has wrong length ++[chap] returns invalid Failed to authenticate the user. What could be wrong? Please help. Thanks in advance. Logs: ===== FreeRADIUS Version 2.1.8, for host i686-pc-linux-gnu, built on May 10 2010 at 16:37:47 Copyright (C) 1999-2009 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 /usr/local/etc/raddb/radiusd.conf including configuration file /usr/local/etc/raddb/proxy.conf including configuration file /usr/local/etc/raddb/clients.conf including files in directory /usr/local/etc/raddb/modules/ including configuration file /usr/local/etc/raddb/modules/unix including configuration file /usr/local/etc/raddb/modules/exec including configuration file /usr/local/etc/raddb/modules/echo including configuration file /usr/local/etc/raddb/modules/wimax including configuration file /usr/local/etc/raddb/modules/mac2ip including configuration file /usr/local/etc/raddb/modules/perl including configuration file /usr/local/etc/raddb/modules/sradutmp including configuration file /usr/local/etc/raddb/modules/pap including configuration file /usr/local/etc/raddb/modules/counter including configuration file /usr/local/etc/raddb/modules/expr including configuration file /usr/local/etc/raddb/modules/ippool including configuration file /usr/local/etc/raddb/modules/smsotp including configuration file /usr/local/etc/raddb/modules/realm including configuration file /usr/local/etc/raddb/modules/always including configuration file /usr/local/etc/raddb/modules/otp including configuration file /usr/local/etc/raddb/modules/policy including configuration file /usr/local/etc/raddb/modules/krb5 including configuration file /usr/local/etc/raddb/modules/files including configuration file /usr/local/etc/raddb/modules/detail.log including configuration file /usr/local/etc/raddb/modules/pam including configuration file /usr/local/etc/raddb/modules/etc_group including configuration file /usr/local/etc/raddb/modules/detail including configuration file /usr/local/etc/raddb/modules/inner-eap including configuration file /usr/local/etc/raddb/modules/smbpasswd including configuration file /usr/local/etc/raddb/modules/digest including configuration file /usr/local/etc/raddb/modules/attr_rewrite including configuration file /usr/local/etc/raddb/modules/linelog including configuration file /usr/local/etc/raddb/modules/expiration including configuration file /usr/local/etc/raddb/modules/detail.example.com including configuration file /usr/local/etc/raddb/modules/chap including configuration file /usr/local/etc/raddb/modules/passwd including configuration file /usr/local/etc/raddb/modules/logintime including configuration file /usr/local/etc/raddb/modules/mac2vlan including configuration file /usr/local/etc/raddb/modules/sql_log including configuration file /usr/local/etc/raddb/modules/radutmp including configuration file /usr/local/etc/raddb/modules/ldap including configuration file /usr/local/etc/raddb/modules/acct_unique including configuration file /usr/local/etc/raddb/modules/attr_filter including configuration file /usr/local/etc/raddb/modules/checkval including configuration file /usr/local/etc/raddb/modules/preprocess including configuration file /usr/local/etc/raddb/modules/mschap including configuration file /usr/local/etc/raddb/modules/sqlcounter_expire_on_login including configuration file /usr/local/etc/raddb/modules/ntlm_auth including configuration file /usr/local/etc/raddb/modules/cui including configuration file /usr/local/etc/raddb/eap.conf including configuration file /usr/local/etc/raddb/policy.conf including files in directory /usr/local/etc/raddb/sites-enabled/ including configuration file /usr/local/etc/raddb/sites-enabled/default including configuration file /usr/local/etc/raddb/sites-enabled/control-socket including configuration file /usr/local/etc/raddb/sites-enabled/inner-tunnel main { allow_core_dumps = no } including dictionary file /usr/local/etc/raddb/dictionary main { prefix = "/usr/local" localstatedir = "/usr/local/var" logdir = "/usr/local/var/log/radius" libdir = "/usr/local/lib" radacctdir = "/usr/local/var/log/radius/radacct" hostname_lookups = no max_request_time = 30 cleanup_delay = 5 max_requests = 1024 pidfile = "/usr/local/var/run/radiusd/radiusd.pid" checkrad = "/usr/local/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 max_outstanding = 65536 require_message_authenticator = no 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 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 192.168.1.109 { require_message_authenticator = no secret = "secret" } 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 = "/usr/local/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 = 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" } Ignoring EAP-Type/tls because we do not have OpenSSL support. Ignoring EAP-Type/ttls because we do not have OpenSSL support. Ignoring EAP-Type/peap because we do not have OpenSSL support. 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 = "/usr/local/etc/raddb/users" acctusersfile = "/usr/local/etc/raddb/acct_users" preproxy_usersfile = "/usr/local/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 = "/usr/local/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 = "/usr/local/etc/raddb/attrs.access_reject" key = "%{User-Name}" } } # modules } # server server { 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 = "/usr/local/etc/raddb/huntgroups" hints = "/usr/local/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 = "/usr/local/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 = "/usr/local/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 } # 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 = "/usr/local/var/run/radiusd/radiusd.sock" } } Listening on authentication address * port 1812 Listening on accounting address * port 1813 Listening on command file /usr/local/var/run/radiusd/radiusd.sock Listening on proxy address * port 1814 Ready to process requests. rad_recv: Access-Request packet from host 192.168.1.109 port 51736, id=5, length=106 User-Name = "steve" Acct-Session-Id = "001" NAS-Identifier = "NASIDTest" NAS-IP-Address = 192.168.1.120 Called-Station-Id = "called" Calling-Station-Id = "caller" NAS-Port = 1234 NAS-Port-Type = Ethernet CHAP-Password = 0x74657374696e67 User-Password = "testing" +- entering group authorize {...} ++[preprocess] returns ok [chap] Setting 'Auth-Type := CHAP' ++[chap] returns ok ++[mschap] returns noop [suffix] No '@' in User-Name = "steve", looking up realm NULL [suffix] No such realm "NULL" ++[suffix] returns noop [eap] No EAP-Message, not doing EAP ++[eap] returns noop ++[unix] returns notfound [files] users: Matched entry steve at line 76 ++[files] returns ok ++[expiration] returns noop ++[logintime] returns noop [pap] Found existing Auth-Type, not changing it. ++[pap] returns noop Found Auth-Type = CHAP +- entering group CHAP {...} [chap] rlm_chap: password supplied has wrong length ++[chap] returns invalid Failed to authenticate the user. Using Post-Auth-Type Reject +- entering group REJECT {...} [attr_filter.access_reject] expand: %{User-Name} -> steve attr_filter: Matched entry DEFAULT at line 11 ++[attr_filter.access_reject] returns updated Delaying reject of request 0 for 1 seconds Going to the next request Waking up in 0.9 seconds. Sending delayed reject for request 0 Sending Access-Reject of id 5 to 192.168.1.109 port 51736 Waking up in 4.9 seconds. Cleaning up request 0 ID 5 with timestamp +79 Ready to process requests.