Red Hat Bugzilla – Bug 426720
Masquerading doesn't allow packets to be forwarded by default
Last modified: 2008-08-02 19:40:36 EDT
Description of problem:
s-c-firewall has this nice Masquerading section in it which creates the NAT
rules in the PREROUTING and POSTROUTING chains, and it even helpfully turns on
IPv4 Forwarding for you. Unfortunately, it doesn't remove the default iptables
rule that blocks all traffic in the FORWARD chain. This kinda makes the whole
"easy to configure masquerading" functionality pointless.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Enable the checkbox on an interface in the Masquerading section.
3. Note that no packets are allowed to be forwarded.
-A FORWARD -j REJECT --reject-with icmp-host-prohibited
Remove the FORWARD rule that REJECTs all packets.
Please have a look at system-config-firewall-1.0.12-4.fc8 in F-8 testing.
system-config-firewall-1.0.12-4.fc8 has been pushed to the Fedora 8 stable repository. If problems still persist, please make note of it in this bug report.