Hi Folks,
Last week I asked if I could spoof ARP responses to try and forward IP traffic
through my firewall. The problem being that I need to connect my network to
someone else's who is using part of the same subnet - no IP address conflict
tho'.
Now I'm wondering if I could use IP aliasing - more than one IP address on one
NIC, and then set up some IPCHAINS or IPTABLES to forward that traffic on a
different i/f.
Ideally, I'd like a node on my network to connect to 10.1.0.34 by sending the
packets to 10.1.1.115 and then have that traffic NAT'd as 192.168.105.1
routed to 192.168.105.2. Obviously response packets being unNAT'd and
forwarded back to the host.
Here's a rough schematic.
||
|| My network traffic
||
-----------------------
| 10.1.1.115 |
| aliases 10.1.0.1, |
| 10.1.0.34 etc | Firewall
| |
| 192.168.105.1 |
|---------------------|
||
|| (NAT'd traffic)
||
-----------------------
| 192.168.105.2 |
| |
| rest of the world | Router
| |
-----------------------
--
Gary Stainburn
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