+++ Nilesh Chaudhari [13/04/02 22:59 +0100]: <snip>
+---------+ +----------+ +---------+ +-------+ | Home PC |----| Cable GW |---<> Internet <>--| Off. GW |--|Off. PC| +---------+ +----------+ +---------+ +-------+
- Since both the PCs are on private subnets, even if we managed to
route the packets from the home PC to the office gateway, the office gateway will reject the packets bound for its private subnet because they are initiated from an external host. (This is if a firewall has been configured properly).
Correct. That is why a VPN is needed. A VPN is an IPSEC tunnel over IP. This means that the RFC 1918 packet is encapsulated in a valid public IP packet, which the gateway will accept and the VPN server on the gateway will deal with.
- IPSEC won't work because the Cable GW does natting on the packets
originating from the Home PC. And there is not control over the cable GW.
BTW, according to the original mail, both PCs are behind a cable modem from the same provider.
- We can connect to the Office PC with a PPTP connection, but it will
need a VPN service on the Office GW.
In any case, you'll atleast need a VPN server on your Office GW.
Without a proper diagram of the logical setup, it is hard to guess exactly what is needed. <snip>
He can't do even an ssh/scp without his admin's grace. So Amish, try maskaoing your admin. (That'll not help much if he is a good admin)
This will depend in the exact need.
Devdas Bhagat