Hey all,
I'm running a TUN setup with redirect-gateway def1 to tunnel from a Client running on a workplace network to a Server running on my Windows 10 computer at home (with a router as my gateway). Everything has been working great, including bypassing the VPN for traffic directed to the Client's local subnet. However, I'd really like to be able to access devices on the Server's local subnet from the Client, but have been mostly unsuccessful in this regard. I can ping my router on 192.168.26.1, but I can't ping any other devices on the Server's LAN from the Client computer, including the Server on 192.168.26.99. Please help!
Here's my setup:
10.8.0.0: OpenVPN virtual subnet
192.168.26.0: Server LAN
10.0.0.0: Client LAN
IP_Forwarding set up on Client and Server
Router (Server gateway) set up to route 10.8.0.0 to 192.168.26.99 (Server local IP)
port 1194
proto udp
dev tun
ca "C:\\Program Files\\OpenVPN\\config\\ca.crt"
cert "C:\\Program Files\\OpenVPN\\config\\server.crt"
key "C:\\Program Files\\OpenVPN\\config\\server.key" # This file should be kept secret
dh "C:\\Program Files\\OpenVPN\\config\\dh2048.pem"
server 10.8.0.0 255.255.255.0
;ifconfig-pool-persist ipp.txt
;ifconfig
push "redirect-gateway def1"
push "dhcp-option DNS 8.8.8.8"
push "route 192.168.26.0 255.255.255.0"
route 192.168.26.0 255.255.255.0 net_gateway
keepalive 10 60
push ping 10
push ping-restart 60
comp-lzo
persist-key
persist-tun
status openvpn-status.log
verb 5
##############################################
# 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 my-server-static-ip 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 "C:\\Program Files\\OpenVPN\\config\\ca.crt"
cert "C:\\Program Files\\OpenVPN\\config\\js_sa.crt"
key "C:\\Program Files\\OpenVPN\\config\\js_sa.key"
# Verify server certificate by checking that the
# certicate has the correct key usage set.
# 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 keyUsage set to
# digitalSignature, keyEncipherment
# and the extendedKeyUsage to
# serverAuth
# EasyRSA can do this for you.
remote-cert-tls 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 x
# 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 5
explicit-exit-notify 2
ping 10
ping-restart 60
route-method exe
route-delay 2
;route-nopull
;route remote_host 255.255.255.255 net_gateway
;route 0.0.0.0 0.0.0.0 10.8.0.1
;route 192.168.26.0 255.255.255.0
route 10.0.0.0 255.255.0.0 net_gateway
# Silence repeating messages
;mute 20
