Rob Sterenborg wrote: > > I want packets originating from internet to $OUT to be accepted by > > the gateway and redirected to $IN. Without the ifconfig, the > > gateway appears to accept only packets to itself. > > Yes. The gateway has 2 IP addresses, 1 public ($OUT) and 1 private > ($IN). No, I want the gateway to have a public address other than $OUT, and the private address shouldn't be $IN, because that's what COMPUTER's address. Maybe an example help explain what I want. Say, GATEWAY has public address 200.1.1.1 and private address 192.168.1.1. COMPUTER is connected to the private network and has private address 192.168.1.2. However, I want to make it appear that COMPUTER exists as a node on the internet, on the same subnet as GATEWAY. The public address of COMPUTER should be 200.1.1.2. When a packet to 200.1.1.2 reaches GATEWAY, it should be NAT'ed to 192.1.1.2 and passed to COMPUTER, and vice versa. > > I want the gateway to have an IP address of its own, distinct from > > $OUT. > > I don't see the point in "appearing to come from another IP", because > reply packets would not reach you anymore (private IP), or you'd have > asymmetric routing (2nd public IP). Yes, there is a second public IP.
