Hi, I installed ocserv 0.3.2, and use anyconnect.app on iPhone to connect to it. The connection goes well, but I can not get data through the server. I also tried with no route defined, which equals 0.0.0.0/0.0.0.0 . This time, I can?t access any website on my phone? ================================================= I have tried these commands: sysctl -w net.ipv4.ip_forward=1 iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE iptables -I INPUT -j ACCEPT ================================================= But it still doesn?t work? Here is my config file: ================================================= # User authentication method. Could be set multiple times and in that case # all should succeed. # Options: certificate, pam. #auth = "certificate" auth = "plain[/etc/ocserv/pwd]" #auth = "pam" # The plain option requires specifying a password file which contains # entries of the following format. # "username:groupname:encoded-password" # One entry must be listed per line, and 'ocpasswd' can be used # to generate password entries. #auth = "plain[/etc/ocserv/ocpasswd]" # A banner to be displayed on clients #banner = "Welcome" # Use listen-host to limit to specific IPs or to the IPs of a provided # hostname. #listen-host = [IP|HOSTNAME] # Limit the number of clients. Unset or set to zero for unlimited. #max-clients = 1024 max-clients = 0 # Limit the number of client connections to one every X milliseconds # (X is the provided value). Set to zero for no limit. #rate-limit-ms = 100 # Limit the number of identical clients (i.e., users connecting # multiple times). Unset or set to zero for unlimited. max-same-clients = 2 # TCP and UDP port number tcp-port = 443 udp-port = 443 # Keepalive in seconds keepalive = 32400 # Dead peer detection in seconds. dpd = 240 # Dead peer detection for mobile clients. The needs to # be much higher to prevent such clients being awaken too # often by the DPD messages, and save battery. # (clients that send the X-AnyConnect-Identifier-DeviceType) mobile-dpd = 1800 # MTU discovery (DPD must be enabled) try-mtu-discovery = true # The key and the certificates of the server # The key may be a file, or any URL supported by GnuTLS (e.g., # tpmkey:uuid=xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxx;storage=user # or pkcs11:object=my-vpn-key;object-type=private) # # There may be multiple certificate and key pairs and each key # should correspond to the preceding certificate. server-cert = /etc/ssl/certs/server-cert.pem server-key = /etc/ssl/private/server-key.pem # Diffie-Hellman parameters. Only needed if you require support # for the DHE ciphersuites (by default this server supports ECDHE). # Can be generated using: # certtool --generate-dh-params --outfile /path/to/dh.pem #dh-params = /path/to/dh.pem # If you have a certificate from a CA that provides an OCSP # service you may provide a fresh OCSP status response within # the TLS handshake. That will prevent the client from connecting # independently on the OCSP server. # You can update this response periodically using: # ocsptool --ask --load-cert=your_cert --load-issuer=your_ca --outfile response # Make sure that you replace the following file in an atomic way. #ocsp-response = /path/to/ocsp.der # In case PKCS #11 or TPM keys are used the PINs should be available # in files. The srk-pin-file is applicable to TPM keys only, and is the # storage root key. #pin-file = /path/to/pin.txt #srk-pin-file = /path/to/srkpin.txt # The Certificate Authority that will be used to verify # client certificates (public keys) if certificate authentication # is set. # The object identifier that will be used to read the user ID in the client # certificate. The object identifier should be part of the certificate's DN # Useful OIDs are: # CN = 2.5.4.3, UID = 0.9.2342.19200300.100.1.1 #cert-user-oid = 0.9.2342.19200300.100.1.1 # The object identifier that will be used to read the user group in the # client certificate. The object identifier should be part of the certificate's # DN. Useful OIDs are: # OU (organizational unit) = 2.5.4.11 #cert-group-oid = 2.5.4.11 # The revocation list of the certificates issued by the 'ca-cert' above. #crl = /path/to/crl.pem # GnuTLS priority string tls-priorities = "NORMAL:%SERVER_PRECEDENCE:%COMPAT" # To enforce perfect forward secrecy (PFS) on the main channel. #tls-priorities = "NORMAL:%SERVER_PRECEDENCE:%COMPAT:-RSA" # The time (in seconds) that a client is allowed to stay connected prior # to authentication auth-timeout = 40 # The time (in seconds) that a client is allowed to stay idle (no traffic) # before being disconnected. Unset to disable. #idle-timeout = 1200 # The time (in seconds) that a mobile client is allowed to stay idle (no # traffic) before being disconnected. Unset to disable. #mobile-idle-timeout = 2400 # The time (in seconds) that a client is not allowed to reconnect after # a failed authentication attempt. #min-reauth-time = 2 # Cookie validity time (in seconds) # Once a client is authenticated he's provided a cookie with # which he can reconnect. This option sets the maximum lifetime # of that cookie. cookie-validity = 86400 # ReKey time (in seconds) # ocserv will ask the client to refresh keys periodically once # this amount of seconds is elapsed. Set to zero to disable. rekey-time = 172800 # ReKey method # Valid options: ssl, new-tunnel # ssl: Will perform an efficient rehandshake on the channel allowing # a seamless connection during rekey. # new-tunnel: Will instruct the client to discard and re-establish the channel. # Use this option only if the connecting clients have issues with the ssl # option. rekey-method = ssl # Script to call when a client connects and obtains an IP # Parameters are passed on the environment. # REASON, USERNAME, GROUPNAME, HOSTNAME (the hostname selected by client), # DEVICE, IP_REAL (the real IP of the client), IP_LOCAL (the local IP # in the P-t-P connection), IP_REMOTE (the VPN IP of the client), # ID (a unique numeric ID); REASON may be "connect" or "disconnect". #connect-script = /usr/bin/myscript #disconnect-script = /usr/bin/myscript # UTMP use-utmp = true # D-BUS usage. If disabled occtl tool cannot be used. If enabled # then ocserv must have access to register org.infradead.ocserv # D-BUS service. See doc/dbus/org.infradead.ocserv.conf use-dbus = true # PID file. It can be overriden in the command line. pid-file = /var/run/ocserv.pid # The default server directory. Does not require any devices present. #chroot-dir = /path/to/chroot # socket file used for IPC, will be appended with .PID # It must be accessible within the chroot environment (if any) socket-file = /var/run/ocserv-socket # The user the worker processes will be run as. It should be # unique (no other services run as this user). run-as-user = nobody run-as-group = nogroup # Set the protocol-defined priority (SO_PRIORITY) for packets to # be sent. That is a number from 0 to 6 with 0 being the lowest # priority. Alternatively this can be used to set the IP Type- # Of-Service, by setting it to a hexadecimal number (e.g., 0x20). # This can be set per user/group or globally. #net-priority = 3 # Set the VPN worker process into a specific cgroup. This is Linux # specific and can be set per user/group or globally. #cgroup = "cpuset,cpu:test" # # Network settings # # The name of the tun device device = vpns # The default domain to be advertised default-domain = example.com # The pool of addresses that leases will be given from. ipv4-network = 192.168.1.0 ipv4-netmask = 255.255.255.0 # The advertized DNS server. Use multiple lines for # multiple servers. # dns = fc00::4be0 dns = 8.8.8.8 # The NBNS server (if any) #nbns = 192.168.1.3 # The IPv6 subnet that leases will be given from. #ipv6-network = fc00:: #ipv6-prefix = 16 # The domains over which the provided DNS should be used. Use # multiple lines for multiple domains. #split-dns = example.com # Prior to leasing any IP from the pool ping it to verify that # it is not in use by another (unrelated to this server) host. ping-leases = false # Unset to assign the default MTU of the device # mtu = # Unset to enable bandwidth restrictions (in bytes/sec). The # setting here is global, but can also be set per user or per group. #rx-data-per-sec = 40000 #tx-data-per-sec = 40000 # The number of packets (of MTU size) that are available in # the output buffer. The default is low to improve latency. # Setting it higher will improve throughput. output-buffer = 10 # Routes to be forwarded to the client. If you need the # client to forward routes to the server, you may use the # config-per-user/group or even connect and disconnect scripts. # # To set the server as the default gateway for the client just # comment out all routes from the server. #route = 192.168.1.0/255.255.255.0 #route = 192.168.5.0/255.255.255.0 #route = fef4:db8:1000:1001::/64 # Configuration files that will be applied per user connection or # per group. Each file name on these directories must match the username # or the groupname. # The options allowed in the configuration files are dns, nbns, # ipv?-network, ipv4-netmask, ipv6-prefix, rx/tx-per-sec, iroute, route, # net-priority and cgroup. # # Note that the 'iroute' option allows to add routes on the server # based on a user or group. The syntax depends on the input accepted # by the commands route-add-cmd and route-del-cmd (see below). #config-per-user = /etc/ocserv/config-per-user/ #config-per-group = /etc/ocserv/config-per-group/ # The system command to use to setup a route. %R will be replaced with the # route/mask and %D with the (tun) device. # # The following example is from linux systems. %R should be something # like 192.168.2.0/24 #route-add-cmd = "ip route add %R dev %D" #route-del-cmd = "ip route delete %R dev %D" # # The following options are for (experimental) AnyConnect client # compatibility. # Client profile xml. A sample file exists in doc/profile.xml. # This file must be accessible from inside the worker's chroot. # It is not used by the openconnect client. #user-profile = profile.xml # Binary files that may be downloaded by the CISCO client. Must # be within any chroot environment. #binary-files = /path/to/binaries # Unless set to false it is required for clients to present their # certificate even if they are authenticating via a previously granted # cookie and complete their authentication in the same TCP connection. # Legacy CISCO clients do not do that, and thus this option should be # set for them. #cisco-client-compat = false #Advanced options # Option to allow sending arbitrary custom headers to the client after # authentication and prior to VPN tunnel establishment. route = 3.0.0.0/255.0.0.0 route = 4.0.0.0/255.0.0.0 route = 8.0.0.0/255.0.0.0 route = 198.0.0.0/255.0.0.0 route = 209.0.0.0/255.0.0.0 route = 210.0.0.0/255.0.0.0 route = 216.0.0.0/255.0.0.0 route = 61.0.0.0/255.0.0.0 route = 64.0.0.0/255.0.0.0 route = 66.0.0.0/255.0.0.0 route = 70.0.0.0/255.0.0.0 route = 72.0.0.0/255.0.0.0 route = 74.0.0.0/255.0.0.0 route = 173.0.0.0/255.0.0.0 route = 204.0.0.0/255.0.0.0 route = 69.0.0.0/255.0.0.0 route = 199.0.0.0/255.0.0.0 route = 203.0.0.0/255.0.0.0 route = 31.0.0.0/255.0.0.0 #custom-header = "X-My-Header: hi there? ================================================= The log output from ocserv: root@(none):/etc/ocserv# ocserv -fd 1 -c ocserv.conf listening (TCP) on 0.0.0.0:443... listening (TCP) on [::]:443... listening (UDP) on 0.0.0.0:443... listening (UDP) on [::]:443... ocserv[16755]: main: initialized ocserv 0.3.2 ocserv[16756]: sec-mod initialized (socket: /var/run/ocserv-socket.16755) ocserv[16757]: worker: 114.242.249.136:49837 accepted connection ocserv[16756]: sec-mod received request from pid 16757 and uid 65534 ocserv[16757]: worker: 114.242.249.136:49837 sending message 'resume data store request' to main ocserv[16757]: worker: 114.242.249.136:49837 TLS handshake completed ocserv[16755]: main: 114.242.249.136:49837 main received message 'resume data store request' of 258 bytes ocserv[16755]: main: 114.242.249.136:49837 TLS session DB storing 370dbc147d686005ecba7fcdc572ae971e08ce49eb56fbea454a8e92989b7952 ocserv[16757]: worker: 114.242.249.136:49837 cannot find username in client XML message ocserv[16757]: worker: 114.242.249.136:49837 failed reading username ocserv[16757]: worker: 114.242.249.136:49837 sent sid: oOXMmwTyvI0p96y+ ocserv[16757]: worker: 114.242.249.136:49837 received sid: oOXMmwTyvI0p96y+ ocserv[16757]: worker: 114.242.249.136:49837 sending message 'auth init' to main ocserv[16755]: main: 114.242.249.136:49837 main received message 'auth init' of 15 bytes ocserv[16755]: main: 114.242.249.136:49837 auth init for user 'rankjie' from '114.242.249.136:49837' ocserv[16755]: main: 114.242.249.136:49837 sending message 'auth reply' to worker ocserv[16757]: worker: 114.242.249.136:49837 received auth reply message (value: 2) ocserv[16757]: worker: 114.242.249.136:49837 continuing authentication for '' ocserv[16757]: worker: 114.242.249.136:49837 received sid: oOXMmwTyvI0p96y+ ocserv[16757]: worker: 114.242.249.136:49837 sending message 'auth request' to main ocserv[16755]: main: 114.242.249.136:49837 main received message 'auth request' of 10 bytes ocserv[16755]: main: 114.242.249.136:49837 auth req for user 'rankjie' ocserv[16755]: main: 114.242.249.136:49837 accepting user 'rankjie' ocserv[16755]: main: 114.242.249.136:49837 auth deinit for user 'rankjie' ocserv[16755]: main: 114.242.249.136:49837 selected IP for 'rankjie': 192.168.1.144 ocserv[16755]: main: 114.242.249.136:49837 assigned IPv4 to 'rankjie': 192.168.1.145 ocserv[16755]: main: 114.242.249.136:49837 assigning tun device vpns0 ocserv[16755]: main: 114.242.249.136:49837 user 'rankjie' of group '[unknown]' authenticated ocserv[16755]: main: 114.242.249.136:49837 sending (socket) message 2 to worker ocserv[16757]: worker: 114.242.249.136:49837 received auth reply message (value: 1) ocserv[16757]: worker: 114.242.249.136:49837 user 'rankjie' logged in ocserv[16765]: worker: 114.242.249.136:49838 accepted connection ocserv[16756]: sec-mod received request from pid 16765 and uid 65534 ocserv[16765]: worker: 114.242.249.136:49838 sending message 'resume data store request' to main ocserv[16765]: worker: 114.242.249.136:49838 TLS handshake completed ocserv[16755]: main: 114.242.249.136:49838 main received message 'resume data store request' of 278 bytes ocserv[16755]: main: 114.242.249.136:49838 TLS session DB storing bfb58e4c8272fd942edb32c5ea070e7d8529ff735bf931394fcb177a446a5b55 ocserv[16765]: worker: 114.242.249.136:49838 unexpected URL /+CSCOT+/translation-table?type=combined-manifest&textdomain=AnyConnect ocserv[16755]: main: 114.242.249.136:49838 main-misc.c:487: command socket closed ocserv[16755]: main: 114.242.249.136:49838 removing client '' with id '16765' ocserv[16766]: worker: 114.242.249.136:49839 accepted connection ocserv[16756]: sec-mod received request from pid 16766 and uid 65534 ocserv[16766]: GnuTLS error (at worker-vpn.c:691): A TLS fatal alert has been received.: CA is unknown ocserv[16755]: main: 114.242.249.136:49839 main-misc.c:487: command socket closed ocserv[16755]: main: 114.242.249.136:49839 removing client '' with id '16766' ocserv[16767]: worker: 114.242.249.136:49840 accepted connection ocserv[16756]: sec-mod received request from pid 16767 and uid 65534 ocserv[16767]: worker: 114.242.249.136:49840 sending message 'resume data store request' to main ocserv[16767]: worker: 114.242.249.136:49840 TLS handshake completed ocserv[16755]: main: 114.242.249.136:49840 main received message 'resume data store request' of 258 bytes ocserv[16755]: main: 114.242.249.136:49840 TLS session DB storing 119d90232ea53289c98711695a9495ed834792d542f165f3ec7a1358b82ab950 ocserv[16767]: worker: 114.242.249.136:49840 sending message 'auth cookie request' to main ocserv[16755]: main: 114.242.249.136:49840 main received message 'auth cookie request' of 261 bytes ocserv[16755]: main: 114.242.249.136:49840 accepting user 'rankjie' ocserv[16755]: main: 114.242.249.136:49840 auth deinit for user 'rankjie' ocserv[16755]: main: 114.242.249.136:49837 disconnecting 'rankjie' due to new cookie connection ocserv[16755]: main: 114.242.249.136:49840 assigned IPv4 to 'rankjie': 192.168.1.145 ocserv[16755]: main: 114.242.249.136:49840 assigning tun device vpns1 ocserv[16755]: main: 114.242.249.136:49840 user 'rankjie' of group '[unknown]' re-authenticated (using cookie) ocserv[16755]: main: 114.242.249.136:49840 sending (socket) message 2 to worker ocserv[16767]: worker: 114.242.249.136:49840 received auth reply message (value: 1) ocserv[16767]: worker: 114.242.249.136:49840 suggesting DPD of 1800 secs ocserv[16767]: worker: 114.242.249.136:49840 sending IPv4 192.168.1.145 ocserv[16767]: worker: 114.242.249.136:49840 adding route 3.0.0.0/255.0.0.0 ocserv[16767]: worker: 114.242.249.136:49840 adding route 4.0.0.0/255.0.0.0 ocserv[16767]: worker: 114.242.249.136:49840 adding route 8.0.0.0/255.0.0.0 ocserv[16767]: worker: 114.242.249.136:49840 adding route 198.0.0.0/255.0.0.0 ocserv[16767]: worker: 114.242.249.136:49840 adding route 209.0.0.0/255.0.0.0 ocserv[16767]: worker: 114.242.249.136:49840 adding route 210.0.0.0/255.0.0.0 ocserv[16767]: worker: 114.242.249.136:49840 adding route 216.0.0.0/255.0.0.0 ocserv[16767]: worker: 114.242.249.136:49840 adding route 61.0.0.0/255.0.0.0 ocserv[16767]: worker: 114.242.249.136:49840 adding route 64.0.0.0/255.0.0.0 ocserv[16767]: worker: 114.242.249.136:49840 adding route 66.0.0.0/255.0.0.0 ocserv[16767]: worker: 114.242.249.136:49840 adding route 70.0.0.0/255.0.0.0 ocserv[16767]: worker: 114.242.249.136:49840 adding route 72.0.0.0/255.0.0.0 ocserv[16767]: worker: 114.242.249.136:49840 adding route 74.0.0.0/255.0.0.0 ocserv[16767]: worker: 114.242.249.136:49840 adding route 173.0.0.0/255.0.0.0 ocserv[16767]: worker: 114.242.249.136:49840 adding route 204.0.0.0/255.0.0.0 ocserv[16767]: worker: 114.242.249.136:49840 adding route 69.0.0.0/255.0.0.0 ocserv[16767]: worker: 114.242.249.136:49840 adding route 199.0.0.0/255.0.0.0 ocserv[16767]: worker: 114.242.249.136:49840 adding route 203.0.0.0/255.0.0.0 ocserv[16767]: worker: 114.242.249.136:49840 adding route 31.0.0.0/255.0.0.0 ocserv[16767]: worker: 114.242.249.136:49840 peer's CSTP MTU is 1356 (ignored) ocserv[16767]: worker: 114.242.249.136:49840 TCP MSS is 1397 ocserv[16767]: worker: 114.242.249.136:49840 reducing MTU due to TCP MSS to 1389 ocserv[16767]: worker: 114.242.249.136:49840 DTLS ciphersuite: AES128-SHA ocserv[16767]: worker: 114.242.249.136:49840 peer's DTLS MTU is 1356 (overhead: 95) ocserv[16767]: worker: 114.242.249.136:49840 suggesting DTLS MTU 1323 ocserv[16767]: worker: 114.242.249.136:49840 suggesting CSTP MTU 1323 ocserv[16767]: worker: 114.242.249.136:49840 plaintext MTU is 1388 ocserv[16767]: worker: 114.242.249.136:49840 sending message 'tun mtu change' to main ocserv[16767]: worker: 114.242.249.136:49840 setting MTU to 1388 ocserv[16755]: main: 114.242.249.136:49840 main received message 'tun mtu change' of 3 bytes ocserv[16755]: main: 114.242.249.136:49840 setting vpns1 MTU to 1388 ocserv[16767]: worker: 114.242.249.136:49840 sending message 'session info' to main ocserv[16755]: main: 114.242.249.136:49840 main received message 'session info' of 51 bytes ocserv[16755]: main: 114.242.249.136:49837 main-misc.c:487: command socket closed ocserv[16755]: main: 114.242.249.136:49837 removing client 'rankjie' with id '16757' ocserv[16755]: main: DTLS record version: 1.0 ocserv[16755]: main: DTLS hello version: 1.0 ocserv[16755]: main: 114.242.249.136:49840 sending (socket) message 10 to worker ocserv[16755]: main: 114.242.249.136:49840 passed UDP socket ocserv[16767]: worker: 114.242.249.136:49840 reducing MTU due to TCP MSS to 1368 ocserv[16767]: worker: 114.242.249.136:49840 sending message 'tun mtu change' to main ocserv[16767]: worker: 114.242.249.136:49840 setting MTU to 1367 ocserv[16755]: main: 114.242.249.136:49840 main received message 'tun mtu change' of 3 bytes ocserv[16767]: worker: 114.242.249.136:49840 worker received message udp fd of 0 bytes ocserv[16767]: worker: 114.242.249.136:49840 received new UDP fd and connected to peerocserv[16755]: main: 114.242.249.136:49840 setting vpns1 MTU to 1367 ocserv[16767]: worker: 114.242.249.136:49840 setting up DTLS connection ocserv[16767]: worker: 114.242.249.136:49840 sending message 'tun mtu change' to main ocserv[16767]: worker: 114.242.249.136:49840 setting MTU to 1302 ocserv[16767]: worker: 114.242.249.136:49840 DTLS handshake completed (plaintext MTU: 1302) ocserv[16755]: main: 114.242.249.136:49840 main received message 'tun mtu change' of 3 bytes ocserv[16755]: main: 114.242.249.136:49840 setting vpns1 MTU to 1302
