Dear All,
We would like to have multicast setup for our VPN clients
Details
Ubuntu Server details
etho: ip: 92.168.1.200 gw: 192.168.1.1 mask: 255.255.255.0
eth1: bridged interface
br0: ip: 92.168.2.200 mask: 255.255.255.0
Version : Linux ubuntu 2.6.28-11-server
VPN Server: OpenVPN
Version - openvpn_2.1~rc11-1ubuntu3_i386.deb
VPN Interface : bridge - br0
(as a linux newbie we had exactly followed the steps given at
https://help.ubuntu.com/community/OpenVPN)
Other Servers / Service : installed mrouted from
http://archive.debian.net/potato/i386/mrouted/download
One of our servers in the LAN is running Video Lan server streaming Video to the LAN and VPN clients
Video Lan Server Details:
ip: 192.168.2.40 gw: 192.168.2.200 mask: 255.255.255.0
VLC is streaming at,
RTP MULTICAST IP: 233.1.2.5
port: 1234
Lan Client Details - ip: 192.168.2.0/24
VPN Client Details - ip: 10.10.20.10/24
VPN Clients are using OPENVPN gui and are connecting from WIN XP systems
Currently, we do not face any problem with
Ping from both LAN and VPN systems
RDP, File Transfer is working without any problem
LAN systems are able to connect and receive multicast at UDP://@233.1.2.5:1234
but, the VPN client systems could not able to connect / receive the multicast Video Stream
Suppose, if we do unicasting, even the VPN clients are able to receive the multicast Video Stream
we have not enabled firewall -UFW and have only these iptables scripts
Code:
sudo iptables -P INPUT ACCEPT
sudo iptables -P OUTPUT ACCEPT
sudo iptables -P FORWARD ACCEPT
sudo iptables -F
sudo iptables -X
sudo iptables -F -t nat
sudo iptables -F -t mangle
sudo iptables -A INPUT -j LOG --log-prefix "INPUT_DROP: "
sudo iptables -A OUTPUT -j LOG --log-prefix "OUTPUT_DROP: "
sudo iptables -A FORWARD -j LOG --log-prefix "FORWARD: "
sudo iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
sudo iptables -t nat -A POSTROUTING -j ACCEPT
and our route -n output is as follows,
Code:
Destination Gateway Genmask Flags Metric Ref Use Iface
10.10.20.2 0.0.0.0 255.255.255.255 UH 0 0 0 tun0
10.10.20.0 10.10.20.2 255.255.255.0 UG 0 0 0 tun0
192.168.2.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
0.0.0.0 192.168.1.1 0.0.0.0 UG 100 0 0 eth0
To solve this problem, which part we should concentrate
IPTABLES ?
VPN Server and its configuration?
Mrouted ?
VPN tunnel instead of Bridge ? (we tried with TUN instead of Bridge interface)
Kindly requesting you all to help us to proceed from here
Thanking you,
S Ganesh
