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Rackspace Firewall/Gateway Setup

Fresh5 days ago
Mar 15, 2026595 views
Confidence Score0%
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Problem

I have rackspace account and wish to have this sort of setup: Firewall/Gateway eth0 - Public IP (56.X.X.X) eth1 - Private IP (10.X.X.X) Ubuntu 10.10. Accepts connections from the internet and routes port 80 to node1 (10.x.x.x) node1 eth0 - Disabled Public IP (56.X.X.X) eth1 - Private IP (10.X.X.X) …

Error Output

# Generated by iptables-save v1.4.4 on Fri Jun 17 18:09:39 2011
*nat
:PREROUTING ACCEPT [0:0]
:OUTPUT ACCEPT [1:452]
:POSTROUTING ACCEPT [1:452]
-A P…

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1 Fix

Canonical Fix
Unverified Fix
New Fix – Awaiting Verification

Fix for: Rackspace Firewall/Gateway Setup

Low Risk

You appear to be missing a masquerade in the routers POSTROUTING table! This is a very simplified version of my own forwarding rules on my ASUS EEEPC acting as router for my wired and wireless networks. I won't guarantee that this will work, because…

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Environment