Hi, I have a computer with two NIC cards "eth0" and "eth1".
It is connected to a VPN server via eth0. The client "tun0" ip address is "10.100.100.2" and the VPN server "tun0" ip address is "10.100.100.1". I have eth1 connected to a different subnet "10.1.2.0/24" and ip address of eth1 is "10.1.2.1". I want to ping from "10.100.100.1" to "10.1.2.1". I have enabled forwarding from eth0 to eth1 and have done NATing for packets going out of eth0. But I am not able to ping from "10.100.100.1" to "10.1.2.1". All is see in wireshark is a ARP broadcast saying "who has 10.1.2.1? tell 10.100.100.1". There is no reply to that broadcast. The strange thing is that I am able to ping from "10.100.100.1" to "10.1.2.1" without forwarding of any sort if I use a "tap" adapter in the VPN. 1) Why is it so? 2) Any suggestions as to how I can do the same thing using the "tun" adapter? -- Thanks and Regards, Hrishikesh Murali
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