openvpn for windows server - Networking

This is a discussion on openvpn for windows server - Networking ; Hi, Here is the my network configuration client: win2000_1 eth1: 172.27.246.222 server: win2000_2 eth1:172.27.246.223 win2000_2 eth2:192.168.11.210 ( This network also connected to other networks 192.168.7.0 ,192.168.2.0 by gateway 192.168.11.254) -My requirement is client should have 192.168.10.0/24 ipaddress and it should ...

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  1. openvpn for windows server

    Hi,

    Here is the my network configuration

    client:
    win2000_1 eth1: 172.27.246.222

    server:
    win2000_2 eth1:172.27.246.223
    win2000_2 eth2:192.168.11.210 ( This network also connected to other
    networks 192.168.7.0 ,192.168.2.0 by gateway 192.168.11.254)

    -My requirement is client should have 192.168.10.0/24 ipaddress and it
    should be able to ping any machine in 192.168.11.0/24,192.168.7.0/24
    etc

    *************************************************s erver****************

    Windows 2000 IP Configuration

    Ethernet adapter Local Area Connection 3vpn server's)

    Connection-specific DNS Suffix . :
    IP Address. . . . . . . . . . . . : 192.168.10.1
    Subnet Mask . . . . . . . . . . . : 255.255.255.252
    Default Gateway . . . . . . . . . :

    Ethernet adapter Local Area Connection 2:

    Connection-specific DNS Suffix . :
    IP Address. . . . . . . . . . . . : 172.27.246.223
    Subnet Mask . . . . . . . . . . . : 255.255.254.0
    Default Gateway . . . . . . . . . : 172.27.246.254

    Ethernet adapter Local Area Connection:

    Connection-specific DNS Suffix . :
    IP Address. . . . . . . . . . . . : 192.168.11.201
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . : 192.168.11.254

    *****************************************client*** *****************************
    C:\>ipconfig

    Windows 2000 IP Configuration

    Ethernet adapter Local Area Connectionvpn client's)

    Connection-specific DNS Suffix . :
    IP Address. . . . . . . . . . . . : 192.168.10.6
    Subnet Mask . . . . . . . . . . . : 255.255.255.252
    Default Gateway . . . . . . . . . :

    Ethernet adapter Local Area Connection172:

    Connection-specific DNS Suffix . :
    IP Address. . . . . . . . . . . . : 172.27.246.210
    Subnet Mask . . . . . . . . . . . : 255.255.254.0
    Default Gateway . . . . . . . . . :

    ************************************************** *************************************

    I am able to connect client to server, but i am not able to ping any
    machine in the 11.0, 7.0, 2.0 except 192.168.11.210


    I am attachting the server config and client config file,
    please suggest me that what best config for these type of VPN network

    ******************************
    server open vpn 2.0
    ***********************
    # Which local IP address should OpenVPN
    # listen on? (optional)
    local 172.27.246.223

    # Which TCP/UDP port should OpenVPN listen on?
    # If you want to run multiple OpenVPN instances
    # on the same machine, use a different port
    # number for each one. You will need to
    # open up this port on your firewall.
    port 1194

    # TCP or UDP server?
    ;proto tcp
    proto udp

    # "dev tun" will create a routed IP tunnel,
    # "dev tap" will create an ethernet tunnel.
    # Use "dev tap0" if you are ethernet bridging
    # and have precreated a tap0 virtual interface
    # and bridged it with your ethernet interface.
    # If you want to control access policies
    # over the VPN, you must create firewall
    # rules for the the TUN/TAP interface.
    # On non-Windows systems, you can give
    # an explicit unit number, such as tun0.
    # On Windows, use "dev-node" for this.
    # On most systems, the VPN will not function
    # unless you partially or fully disable
    # the firewall for the TUN/TAP interface.
    ;dev tap
    dev tun

    # Windows needs the TAP-Win32 adapter name
    # from the Network Connections panel if you
    # have more than one. On XP SP2 or higher,
    # you may need to selectively disable the
    # Windows firewall for the TAP adapter.
    # Non-Windows systems usually don't need this.
    ;dev-node MyTap

    # SSL/TLS root certificate (ca), certificate
    # (cert), and private key (key). Each client
    # and the server must have their own cert and
    # key file. The server and all clients will
    # use the same ca file.
    #
    # See the "easy-rsa" directory for a series
    # of scripts for generating RSA certificates
    # and private keys. Remember to use
    # a unique Common Name for the server
    # and each of the client certificates.
    #
    # Any X509 key management system can be used.
    # OpenVPN can also use a PKCS #12 formatted key file
    # (see "pkcs12" directive in man page).
    ca ca.crt
    cert server.crt
    key server.key # This file should be kept secret

    # Diffie hellman parameters.
    # Generate your own with:
    # openssl dhparam -out dh1024.pem 1024
    # Substitute 2048 for 1024 if you are using
    # 2048 bit keys.
    dh dh1024.pem

    # Configure server mode and supply a VPN subnet
    # for OpenVPN to draw client addresses from.
    # The server will take 10.8.0.1 for itself,
    # the rest will be made available to clients.
    # Each client will be able to reach the server
    # on 10.8.0.1. Comment this line out if you are
    # ethernet bridging. See the man page for more info.
    server 192.168.10.0 255.255.255.0

    # Maintain a record of client <-> virtual IP address
    # associations in this file. If OpenVPN goes down or
    # is restarted, reconnecting clients can be assigned
    # the same virtual IP address from the pool that was
    # previously assigned.
    ;ifconfig-pool-persist ipp.txt

    # Configure server mode for ethernet bridging.
    # You must first use your OS's bridging capability
    # to bridge the TAP interface with the ethernet
    # NIC interface. Then you must manually set the
    # IP/netmask on the bridge interface, here we
    # assume 10.8.0.4/255.255.255.0. Finally we
    # must set aside an IP range in this subnet
    # (start=10.8.0.50 end=10.8.0.100) to allocate
    # to connecting clients. Leave this line commented
    # out unless you are ethernet bridging.
    ;server-bridge 192.168.11.254 255.255.255.0 192.168.11.240
    192.168.11.250

    # Push routes to the client to allow it
    # to reach other private subnets behind
    # the server. Remember that these
    # private subnets will also need
    # to know to route the OpenVPN client
    # address pool (10.8.0.0/255.255.255.0)
    # back to the OpenVPN server.
    ;push "route 192.168.16.0 255.255.255.0"
    ;push "route 192.168.7.0 255.255.255.0"
    ;push "route 192.168.2.0 255.255.255.0"
    ;push "route 192.168.5.0 255.255.255.0"


    # To assign specific IP addresses to specific
    # clients or if a connecting client has a private
    # subnet behind it that should also have VPN access,
    # use the subdirectory "ccd" for client-specific
    # configuration files (see man page for more info).

    # EXAMPLE: Suppose the client
    # having the certificate common name "Thelonious"
    # also has a small subnet behind his connecting
    # machine, such as 192.168.40.128/255.255.255.248.
    # First, uncomment out these lines:
    ;client-config-dir ccd
    ;route 192.168.12.0 255.255.255.0

    # Then create a file ccd/Thelonious with this line:
    # iroute 192.168.40.128 255.255.255.248
    # This will allow Thelonious' private subnet to
    # access the VPN. This example will only work
    # if you are routing, not bridging, i.e. you are
    # using "dev tun" and "server" directives.

    # EXAMPLE: Suppose you want to give
    # Thelonious a fixed VPN IP address of 10.9.0.1.
    # First uncomment out these lines:
    ;client-config-dir ccd
    ;route 192.168.10.0 255.255.255.0
    # Then add this line to ccd/Thelonious:
    ;ifconfig-push 192.168.10.6 192.168.10.1

    # Suppose that you want to enable different
    # firewall access policies for different groups
    # of clients. There are two methods:
    # (1) Run multiple OpenVPN daemons, one for each
    # group, and firewall the TUN/TAP interface
    # for each group/daemon appropriately.
    # (2) (Advanced) Create a script to dynamically
    # modify the firewall in response to access
    # from different clients. See man
    # page for more info on learn-address script.
    ;learn-address ./script

    # If enabled, this directive will configure
    # all clients to redirect their default
    # network gateway through the VPN, causing
    # all IP traffic such as web browsing and
    # and DNS lookups to go through the VPN
    # (The OpenVPN server machine may need to NAT
    # the TUN/TAP interface to the internet in
    # order for this to work properly).
    # CAVEAT: May break client's network config if
    # client's local DHCP server packets get routed
    # through the tunnel. Solution: make sure
    # client's local DHCP server is reachable via
    # a more specific route than the default route
    # of 0.0.0.0/0.0.0.0.
    push "redirect-gateway"

    # Certain Windows-specific network settings
    # can be pushed to clients, such as DNS
    # or WINS server addresses. CAVEAT:
    # http://openvpn.net/faq.html#dhcpcaveats
    push "dhcp-option DNS 172.27.243.1"
    ;push "dhcp-option WINS 10.8.0.1"

    # Uncomment this directive to allow different
    # clients to be able to "see" each other.
    # By default, clients will only see the server.
    # To force clients to only see the server, you
    # will also need to appropriately firewall the
    # server's TUN/TAP interface.
    ;client-to-client

    # Uncomment this directive if multiple clients
    # might connect with the same certificate/key
    # files or common names. This is recommended
    # only for testing purposes. For production use,
    # each client should have its own certificate/key
    # pair.
    #
    # IF YOU HAVE NOT GENERATED INDIVIDUAL
    # CERTIFICATE/KEY PAIRS FOR EACH CLIENT,
    # EACH HAVING ITS OWN UNIQUE "COMMON NAME",
    # UNCOMMENT THIS LINE OUT.
    ;duplicate-cn

    # The keepalive directive causes ping-like
    # messages to be sent back and forth over
    # the link so that each side knows when
    # the other side has gone down.
    # Ping every 10 seconds, assume that remote
    # peer is down if no ping received during
    # a 120 second time period.
    keepalive 10 120

    # For extra security beyond that provided
    # by SSL/TLS, create an "HMAC firewall"
    # to help block DoS attacks and UDP port flooding.
    #
    # Generate with:
    # openvpn --genkey --secret ta.key
    #
    # The server and each client must have
    # a copy of this key.
    # The second parameter should be '0'
    # on the server and '1' on the clients.
    ;tls-auth ta.key 0 # This file is secret

    # Select a cryptographic cipher.
    # This config item must be copied to
    # the client config file as well.
    cipher BF-CBC # Blowfish (default)
    ;cipher AES-128-CBC # AES
    ;cipher DES-EDE3-CBC # Triple-DES

    # Enable compression on the VPN link.
    # If you enable it here, you must also
    # enable it in the client config file.
    comp-lzo

    # The maximum number of concurrently connected
    # clients we want to allow.
    ;max-clients 100

    # It's a good idea to reduce the OpenVPN
    # daemon's privileges after initialization.
    #
    # You can uncomment this out on
    # non-Windows systems.
    ;user nobody
    ;group nobody

    # The persist options will try to avoid
    # accessing certain resources on restart
    # that may no longer be accessible because
    # of the privilege downgrade.
    persist-key
    persist-tun

    # Output a short status file showing
    # current connections, truncated
    # and rewritten every minute.
    status openvpn-status.log

    # By default, log messages will go to the syslog (or
    # on Windows, if running as a service, they will go to
    # the "\Program Files\OpenVPN\log" directory).
    # Use log or log-append to override this default.
    # "log" will truncate the log file on OpenVPN startup,
    # while "log-append" will append to it. Use one
    # or the other (but not both).
    ;log openvpn.log
    ;log-append openvpn.log

    # Set the appropriate level of log
    # file verbosity.
    #
    # 0 is silent, except for fatal errors
    # 4 is reasonable for general usage
    # 5 and 6 can help to debug connection problems
    # 9 is extremely verbose
    verb 3

    # Silence repeating messages. At most 20
    # sequential messages of the same message
    # category will be output to the log.
    ;mute 20


    ************************************************** ***
    Client
    **************************************************
    ##############################################
    # Sample client-side OpenVPN 2.0 config file #
    # for connecting to multi-client server. #
    # #
    # This configuration can be used by multiple #
    # clients, however each client should have #
    # its own cert and key files. #
    # #
    # On Windows, you might want to rename this #
    # file so it has a .ovpn extension #
    ##############################################

    # Specify that we are a client and that we
    # will be pulling certain config file directives
    # from the server.
    client

    # Use the same setting as you are using on
    # the server.
    # On most systems, the VPN will not function
    # unless you partially or fully disable
    # the firewall for the TUN/TAP interface.
    ;dev tap
    dev tun

    # Windows needs the TAP-Win32 adapter name
    # from the Network Connections panel
    # if you have more than one. On XP SP2,
    # you may need to disable the firewall
    # for the TAP adapter.
    ;dev-node MyTap

    # Are we connecting to a TCP or
    # UDP server? Use the same setting as
    # on the server.
    ;proto tcp
    proto udp

    # The hostname/IP and port of the server.
    # You can have multiple remote entries
    # to load balance between the servers.
    remote 172.27.246.223 1194
    ;remote my-server-2 1194

    # Choose a random host from the remote
    # list for load-balancing. Otherwise
    # try hosts in the order specified.
    ;remote-random

    # Keep trying indefinitely to resolve the
    # host name of the OpenVPN server. Very useful
    # on machines which are not permanently connected
    # to the internet such as laptops.
    resolv-retry infinite

    # Most clients don't need to bind to
    # a specific local port number.
    nobind

    # Downgrade privileges after initialization (non-Windows only)
    ;user nobody
    ;group nobody

    # Try to preserve some state across restarts.
    persist-key
    persist-tun

    # If you are connecting through an
    # HTTP proxy to reach the actual OpenVPN
    # server, put the proxy server/IP and
    # port number here. See the man page
    # if your proxy server requires
    # authentication.
    ;http-proxy-retry # retry on connection failures
    ;http-proxy [proxy server] [proxy port #]

    # Wireless networks often produce a lot
    # of duplicate packets. Set this flag
    # to silence duplicate packet warnings.
    ;mute-replay-warnings

    # SSL/TLS parms.
    # See the server config file for more
    # description. It's best to use
    # a separate .crt/.key file pair
    # for each client. A single ca
    # file can be used for all clients.
    ca ca.crt
    cert client1.crt
    key client1.key

    # Verify server certificate by checking
    # that the certicate has the nsCertType
    # field set to "server". This is an
    # important precaution to protect against
    # a potential attack discussed here:
    # http://openvpn.net/howto.html#mitm
    #
    # To use this feature, you will need to generate
    # your server certificates with the nsCertType
    # field set to "server". The build-key-server
    # script in the easy-rsa folder will do this.
    ;ns-cert-type server

    # If a tls-auth key is used on the server
    # then every client must also have the key.
    ;tls-auth ta.key 1

    # Select a cryptographic cipher.
    # If the cipher option is used on the server
    # then you must also specify it here.
    cipher BF-CBC

    # Enable compression on the VPN link.
    # Don't enable this unless it is also
    # enabled in the server config file.
    comp-lzo

    # Set log file verbosity.
    verb 3

    # Silence repeating messages
    ;mute 20

  2. Re: openvpn for windows server

    hi
    I think that you must create "ccd" directory and create file here.
    File name is client1.
    Write in that file:
    push "route 192.168.11.0 255.255.255.0"

    Sorry for my English.

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