OpenVPN Push Route Trouble



  • Can somebody please explain whats going wrong with my push route command. Setup is fairly simple. WAN = x.x.x.x LAN = 10.79.10.0/24 and I used 10.79.40.0/24 for the OpenVPN subnet. I then did a push route for the 10.79.10.0/24 subnet. The OpenVPN clients can connect and get an IP address in the .40 subnet but they cannot ping address in the local (.10) subnet.

    Here is my server config

    writepid /var/run/openvpn_server0.pid
    #user nobody
    #group nobody
    daemon
    keepalive 10 60
    ping-timer-rem
    persist-tun
    persist-key
    dev tun
    proto udp
    cipher AES-256-CBC
    up /etc/rc.filter_configure
    down /etc/rc.filter_configure
    client-to-client
    server 10.79.40.0 255.255.255.0
    client-config-dir /var/etc/openvpn_csc
    push "route 10.79.10.0 255.255.255.0"
    lport 1194
    ca /var/etc/openvpn_server0.ca
    cert /var/etc/openvpn_server0.cert
    key /var/etc/openvpn_server0.key
    dh /var/etc/openvpn_server0.dh
    comp-lzo

    Any thoughts?



  • is it allowed from firewall rules?



  • Shouldn't be a firewall issue. Since this is in a test environment, both the WAN and LAN interfaces are completely open. (any any any etc) Just to summarize:

    WAN:                        X.X.X.X            Currently its a private address in a test environment but I tested on a WAN address with same results. (ie, fear of NAT and routing issues with private addresses)
    LAN:                        10.79.10.0/24    Local network on LAN port.
    OpenVPN subnet        10.79.40.0/24    The empty subnet used for OpenVPN clients connecting in.

    What seems different with OpenVPN as compared to an IPSec or PPTP in PFSense is there is no interface associated with OpenVPN so I have no way of doing any firewall rules for the .40.0/24 OpenVPN subnet.

    Here are several externally hosted screenshots that should really help out with troubleshooting:

    http://host.atomiklan.com/1.png            (Shows the OpenVPN server front page)
    http://host.atomiklan.com/2.png            (Shows the OpenVPN detailed configurations)
    http://host.atomiklan.com/3.png            (Shows the LAN firewall rules)
    http://host.atomiklan.com/4.png            (Shows the WAN firewall rules()
    http://host.atomiklan.com/5.png            (Shows an IP config command on the client computer that is connected to the OpenVPN server)
    http://host.atomiklan.com/6.png            (Shows the OpenVPN client log window upon successful connection)
    http://host.atomiklan.com/7.png            (Shows the routing table on the Client computer)
    http://host.atomiklan.com/8.png            (Shows the routing table on the OpenVPN server)
    http://host.atomiklan.com/8.png            (Shows IP address assigned to the Client upon successful connection)



  • RESOLVED!

    Cryptography mis-configured

    Push route command is successful. Layer 3 communication now successful. Thank you everyone for helping.


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