traffic redirection issue
 

Hello!

I need redirect incoming traffic, it's coming via a local address, to a virtual interface eth0:1 because i need this interface for a vpn .

Which is the best way to do it ?

I was thinking about iptables, but i guess could be made using static route maybe..

Well any tip or suggestion will be very thankfully

Hope be cleard

Regards!

Though I haven't understood your topology, I feel it is a basic case of routing. Use (static) route here.

Hello pronoy, thanks for your reply

i used a static route to redirect the traffic on the lan host to the host allowed in a vpn server. but now i dont know over what ip is the traffic lefting the server.

i did a iptable rule on the vpn client, like this;

Chain FORWARD (policy ACCEPT)
target prot opt source destination
tcp -- 192.168.0.11 xxx.xxx.xxx.xxx <- server eth0:1 ip

but looking the tcpdump on the vpn client allowed, i cant see if the traffic is outgoing via the eth0:1 instead i see something like this

13:06:11.621804 IP 192.168.0.11 > ipvpnserver: icmp 64: echo request seq 127
13:06:12.622034 IP 192.168.0.11 > ipvpnserver: icmp 64: echo request seq 128
13:06:13.623060 IP 192.168.0.11 > ipvpnserver: icmp 64: echo request seq 129
13:06:14.624144 IP 192.168.0.11 > ipvpnserver: icmp 64: echo request seq 130
13:06:15.624938 IP 192.168.0.11 > ipvpnserver: icmp 64: echo request seq 131
13:06:16.625754 IP 192.168.0.11 > ipvpnserver: icmp 64: echo request seq 132

Maybe sounds a bit confused, and my english is not very good, but if you need futher information to looking for a solution, feel free to post it.

Regards and thanks again!.

guillermo,
Sorry, I could not get the topology as par your configuration !
It will help to understand, if you provide information like:
1. Draw a ascii diagram of your network mentioning the vpn server, client and other hosts (with some ip address).
2. What kind of vpn client/server you are using ?
3. Why you need iptables ?

Thanks,
pronoy

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