Hi,
Thanks for all the tutorials about OpenVPN,
I managed to do a VPN between my server and my client, I can ping the server from the client and conversely.
My server in on red hat 6 and my client is on Linux 14.04.
Here the configuration of my server :
port 443
proto tcp
dev tun
ca /etc/openvpn/easy-rsa/keys/ca.crt
cert /etc/openvpn/easy-rsa/keys/server.crt
key /etc/openvpn/easy-rsa/keys/server.key
crl-verify /etc/openvpn/easy-rsa/keys/crl.pem
dh /etc/openvpn/easy-rsa/keys/dh2048.pem
server 10.8.0.0 255.255.255.0
ifconfig-pool-persist ipp.txt
push "route 10.100.1.0 255.255.255.0"
route 10.100.0.0 255.255.255.0
keepalive 10 120
tls-auth /etc/openvpn/easy-rsa/keys/ta.key 0
comp-lzo
persist-key
persist-tun
client-config-dir ccd
status /var/log/openvpn-status.log
log /var/log/openvpn.log
verb 3
My ccd directory have a file , who is "client" this is the common name of my single client
The file client contain : iroute 10.100.0.0 255.255.255.0
Here is the configuration of my client:
client
dev tun
proto tcp
remote IPpublic
resolv-retry infinite
nobind
user nobody
group nobody
persist-key
persist-tun
ca /etc/openvpn/keys/ca.crt
cert /etc/openvpn/keys/client.crt
key /etc/openvpn/keys/client.key
ns-cert-type server
tls-auth /etc/openvpn/keys/ta.key 1
comp-lzo
verb 3
Here is a draw of my topology (can't upload at work)

(
http://imgur.com/joEik19)
I enabled the ip_forward (1) on the server and the client, but i didn't find the configuration of the iptable for both side (client and server) and i guess this is where i fail.
If you want more information I can provide logs etc...
I hope someoen can help me , thank you
Best regards, luztik.