From: tnt@kalik.net [mailto:tnt@kalik.net] Sent: Thursday, December 10, 2009 5:05 PM To: FreeRadius users mailing list Subject: Re: Trying to get tunneling to work
I am trying to set up freeradius to proxy requests 802.11 MSCHAPv2 to an IAS server. The IAS requests are authenticated by a Safeword server, which doesn't support 802.11. So the idea is that freeradius takes the request, proxies it to IAS as if it was a non-802.11 client, IAS passes it to the integrated Safeword server, and everything is happy.
My configuration works from a 802.11 supplicant if the user exist locally in freeradius, but no proxying happens when the user doesn't exist locally.
Read comments in peap section of eap.conf. Replace LOCAL in Proxy-To-Realm statement in inner-tunnel virtual server with the name of the realm pointing to IAS server.
Ivan Kalik
As far as I know, this is the case. It is replaced in the users file. I did a little cleanup on the other config files too. Here is the new output, though the result is the same. The request is never forwarded out from freeeradius. Help, anyone? 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 } realm safeword.eng { authhost = 192.168.30.29:1812 accthost = 192.168.30.29:1813 secret = Testing_Testing } 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 } radiusd: #### Loading Clients #### client 192.168.7.139/32 { require_message_authenticator = no secret = "Testing_Testing" } client 127.0.0.1/32 { require_message_authenticator = no secret = "testing123" } 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 = "peap" 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 = "/usr/local/etc/raddb/certs/server.pem" certificate_file = "/usr/local/etc/raddb/certs/server.pem" CA_file = "/usr/local/etc/raddb/certs/ca.pem" private_key_password = "whatever" dh_file = "/usr/local/etc/raddb/certs/dh" random_file = "/usr/local/etc/raddb/certs/random" fragment_size = 1024 include_length = yes check_crl = no cipher_list = "DEFAULT" make_cert_command = "/usr/local/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" include_length = yes } Module: Linked to sub-module rlm_eap_peap Module: Instantiating eap-peap peap { default_eap_type = "mschapv2" copy_request_to_tunnel = yes use_tunneled_reply = yes proxy_tunneled_request_as_eap = no 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 = "/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 Listening on proxy address 127.0.0.1 port 35452 Ready to process requests. rad_recv: Access-Request packet from host 192.168.7.139 port 1645, id=148, length=152 User-Name = "mbernhardt" Framed-MTU = 1400 Called-Station-Id = "000a.f4e2.2a00" Calling-Station-Id = "0021.6a46.b0cc" Service-Type = Login-User Message-Authenticator = 0x26cd48e5b9fc61664cee336cc1792ccc EAP-Message = 0x020700061900 NAS-Port-Type = Wireless-802.11 NAS-Port = 3292 State = 0xc871db2ccc76c2f4ed36eeb8b11d50cb NAS-IP-Address = 192.168.7.139 NAS-Identifier = "lks15w-ap350" +- entering group authorize {...} ++[preprocess] returns ok ++[chap] returns noop ++[mschap] returns noop [suffix] No '@' in User-Name = "mbernhardt", looking up realm NULL [suffix] No such realm "NULL" ++[suffix] returns noop [eap] EAP packet type response id 7 length 6 [eap] Continuing tunnel setup. ++[eap] returns ok Found Auth-Type = EAP +- entering group authenticate {...} [eap] Request found, released from the list [eap] EAP/peap [eap] processing type peap [peap] processing EAP-TLS [peap] Received TLS ACK [peap] ACK handshake is finished [peap] eaptls_verify returned 3 [peap] eaptls_process returned 3 [peap] EAPTLS_SUCCESS ++[eap] returns handled Sending Access-Challenge of id 148 to 192.168.7.139 port 1645 EAP-Message = 0x0108002019001703010015ec4896e2cabf793395eed36c929b08a15179a89940 Message-Authenticator = 0x00000000000000000000000000000000 State = 0xc871db2ccd79c2f4ed36eeb8b11d50cb Finished request 21. Going to the next request Waking up in 2.2 seconds. rad_recv: Access-Request packet from host 192.168.7.139 port 1645, id=149, length=184 User-Name = "mbernhardt" Framed-MTU = 1400 Called-Station-Id = "000a.f4e2.2a00" Calling-Station-Id = "0021.6a46.b0cc" Service-Type = Login-User Message-Authenticator = 0x6a4dbd84e5ab9893eeba02d1c466b5f2 EAP-Message = 0x020800261900170301001be14c477ed7b3337d1f7a595cbfe47a98ceb6bbac01a2b8d714fb 21 NAS-Port-Type = Wireless-802.11 NAS-Port = 3292 State = 0xc871db2ccd79c2f4ed36eeb8b11d50cb NAS-IP-Address = 192.168.7.139 NAS-Identifier = "lks15w-ap350" +- entering group authorize {...} ++[preprocess] returns ok ++[chap] returns noop ++[mschap] returns noop [suffix] No '@' in User-Name = "mbernhardt", looking up realm NULL [suffix] No such realm "NULL" ++[suffix] returns noop [eap] EAP packet type response id 8 length 38 [eap] Continuing tunnel setup. ++[eap] returns ok Found Auth-Type = EAP +- entering group authenticate {...} [eap] Request found, released from the list [eap] EAP/peap [eap] processing type peap [peap] processing EAP-TLS [peap] eaptls_verify returned 7 [peap] Done initial handshake [peap] eaptls_process returned 7 [peap] EAPTLS_OK [peap] Session established. Decoding tunneled attributes. [peap] Identity - mbernhardt [peap] Got tunneled request EAP-Message = 0x0208000f016d6265726e6861726474 server { PEAP: Got tunneled identity of mbernhardt PEAP: Setting default EAP type for tunneled EAP session. PEAP: Setting User-Name to mbernhardt Sending tunneled request EAP-Message = 0x0208000f016d6265726e6861726474 FreeRADIUS-Proxied-To = 127.0.0.1 User-Name = "mbernhardt" Framed-MTU = 1400 Called-Station-Id = "000a.f4e2.2a00" Calling-Station-Id = "0021.6a46.b0cc" Service-Type = Login-User NAS-Port-Type = Wireless-802.11 NAS-Port = 3292 NAS-IP-Address = 192.168.7.139 NAS-Identifier = "lks15w-ap350" server inner-tunnel { +- entering group authorize {...} ++[chap] returns noop ++[mschap] returns noop ++[unix] returns updated [suffix] No '@' in User-Name = "mbernhardt", looking up realm NULL [suffix] No such realm "NULL" ++[suffix] returns noop ++[control] returns noop [eap] Request is supposed to be proxied to Realm LOCAL. Not doing EAP. ++[eap] returns noop [files] users: Matched entry DEFAULT at line 3 ++[files] returns ok ++[expiration] returns noop ++[logintime] returns noop ++[pap] returns noop } # server inner-tunnel [peap] Got tunneled reply code 0 PEAP: Calling authenticate in order to initiate tunneled EAP session. +- entering group authenticate {...} [eap] EAP Identity [eap] processing type mschapv2 rlm_eap_mschapv2: Issuing Challenge ++[eap] returns handled PEAP: Cancelling proxy to realm safeword.eng until the tunneled EAP session has been established [peap] Got tunneled reply RADIUS code 11 EAP-Message = 0x010900241a0109001f10421fda5c741f99bbbd660650209f40a16d6265726e6861726474 Message-Authenticator = 0x00000000000000000000000000000000 State = 0x3dd5fbf33ddce1440d05495c582e500e [peap] Got tunneled Access-Challenge ++[eap] returns handled Sending Access-Challenge of id 149 to 192.168.7.139 port 1645 EAP-Message = 0x0109003b190017030100307e4b0e6a672924f75bbb213a62d8e08842877ff9e84d690b7bf5 5531e4eced9572a2c0f4f230db301d3 ac0e43d4ec15e Message-Authenticator = 0x00000000000000000000000000000000 State = 0xc871db2cce78c2f4ed36eeb8b11d50cb Finished request 22. Going to the next request Waking up in 2.2 seconds. rad_recv: Access-Request packet from host 192.168.7.139 port 1645, id=150, length=238 User-Name = "mbernhardt" Framed-MTU = 1400 Called-Station-Id = "000a.f4e2.2a00" Calling-Station-Id = "0021.6a46.b0cc" Service-Type = Login-User Message-Authenticator = 0x29cb8c7c5e0ea13931129b5404267fbd EAP-Message = 0x0209005c19001703010051da572ed9a75ebdddd39a40408f8c6eb4f537f65470fba05b8b82 c174224dcd6de968b259232794f361d 51ab246ab8b41b50bd8dac1777fc412c4f78b4015250d700441464b71f7c27aa6c3901adfff3 1a7 NAS-Port-Type = Wireless-802.11 NAS-Port = 3292 State = 0xc871db2cce78c2f4ed36eeb8b11d50cb NAS-IP-Address = 192.168.7.139 NAS-Identifier = "lks15w-ap350" +- entering group authorize {...} ++[preprocess] returns ok ++[chap] returns noop ++[mschap] returns noop [suffix] No '@' in User-Name = "mbernhardt", looking up realm NULL [suffix] No such realm "NULL" ++[suffix] returns noop [eap] EAP packet type response id 9 length 92 [eap] Continuing tunnel setup. ++[eap] returns ok Found Auth-Type = EAP +- entering group authenticate {...} [eap] Request found, released from the list [eap] EAP/peap [eap] processing type peap [peap] processing EAP-TLS [peap] eaptls_verify returned 7 [peap] Done initial handshake [peap] eaptls_process returned 7 [peap] EAPTLS_OK [peap] Session established. Decoding tunneled attributes. [peap] EAP type mschapv2 [peap] Got tunneled request EAP-Message = 0x020900451a0209004031b326572c085e1b042802b27f632ddc860000000000000000914fa3 c6b927312212cb1ae7675131d7f1a75 7e2a0deaeab006d6265726e6861726474 server { PEAP: Setting User-Name to mbernhardt Sending tunneled request EAP-Message = 0x020900451a0209004031b326572c085e1b042802b27f632ddc860000000000000000914fa3 c6b927312212cb1ae7675131d7f1a75 7e2a0deaeab006d6265726e6861726474 FreeRADIUS-Proxied-To = 127.0.0.1 User-Name = "mbernhardt" State = 0x3dd5fbf33ddce1440d05495c582e500e Framed-MTU = 1400 Called-Station-Id = "000a.f4e2.2a00" Calling-Station-Id = "0021.6a46.b0cc" Service-Type = Login-User NAS-Port-Type = Wireless-802.11 NAS-Port = 3292 NAS-IP-Address = 192.168.7.139 NAS-Identifier = "lks15w-ap350" server inner-tunnel { +- entering group authorize {...} ++[chap] returns noop ++[mschap] returns noop ++[unix] returns updated [suffix] No '@' in User-Name = "mbernhardt", looking up realm NULL [suffix] No such realm "NULL" ++[suffix] returns noop ++[control] returns noop [eap] Request is supposed to be proxied to Realm LOCAL. Not doing EAP. ++[eap] returns noop [files] users: Matched entry DEFAULT at line 3 ++[files] returns ok ++[expiration] returns noop ++[logintime] returns noop ++[pap] returns noop } # server inner-tunnel [peap] Got tunneled reply code 0 PEAP: Calling authenticate in order to initiate tunneled EAP session. +- entering group authenticate {...} [eap] Request found, released from the list [eap] EAP/mschapv2 [eap] processing type mschapv2 [eap] Not-EAP proxy set. Not composing EAP ++[eap] returns handled PEAP: Tunneled authentication will be proxied to safeword.eng PEAP: Remembering to do EAP-MS-CHAP-V2 post-proxy. [eap] Tunneled session will be proxied. Not doing EAP. ++[eap] returns handled WARNING: Empty section. Using default return values. ERROR: Failed to create a new socket for proxying requests. ERROR: Failed inserting request into proxy hash. ERROR: Failed to proxy request 23 There was no response configured: rejecting request 23 Using Post-Auth-Type Reject +- entering group REJECT {...} [attr_filter.access_reject] expand: %{User-Name} -> mbernhardt attr_filter: Matched entry DEFAULT at line 11 ++[attr_filter.access_reject] returns updated Delaying reject of request 23 for 1 seconds Going to the next request Waking up in 0.9 seconds.