Hi everybody,
We installed CentOS on all our servers. We are having some problems in configuring the landscape and stabilizing the environment.
This is what we are looking at:
ADSL ROUTER (192.168.99.1)
|
| (eth0) 192.168.98.4
GATEWAY SERVER (CENTOS )
| (eth1) 192.168.99.4
|
|
|
|
SWITCH (DLINK)
|
|
|
|
| (192.168.99.0/24)
OTHER SERVERS AND COMPUTERS
Now, the gateway server has 2 interfaces. eth1 being the internal interface and eth0 being the external interface. The internal interface serves the internal network with a DHCP Server.
This above conf is working fine. We applied some standard IP table rules on the gateway.
The problem comes when we try using a bridge for eth1. We will need to install openVPN on the server and need to operate it in the bridge mode. But as soon as the bridge is started and eth1 is binded to it, no one can access the system from outside. No-one can also access internet from inside the network. do we need to use ebtables or spanning tree protocol? Building of this landscape has been a bottleneck for our project.
The openvpn clients need to get their ips from the dhcp server runnign on eth1.
I have attached a file described the landscape in detail in jpg file here.
http://www.indience.com/landscape/landscape.jpg
Any help is appreciated.
Regds
Roney