Red Hat Bugzilla – Bug 144018
Boot hangs on start of iptables
Last modified: 2007-11-30 17:10:57 EST
Description of problem:
Have been using iptables as a host-based firewall for some time. Made
a minor mod to open access to internal network. Now, system
consistently hangs during boot when setting up this new iptable
Version-Release number of selected component (if applicable):
kernel: 2.6.9-1.6_FC2 or 2.6.5-1.358
100% reproducible. Note: kernel has specified: acpi=off netprofile=XXX
Steps to Reproduce:
1. Configure iptables as per attachment.
3. System hangs
Once the system has booted, I can manually configure iptables and the
configuration works. I can also start and stop iptables however many
times I like using the saved tables that hang at boot. To work around
the problem, I simply disabled start of iptables at boot and mamually
start them whenever I reboot. I have done a verification of all system
packages, and everything checks ok.
Created attachment 109270 [details]
This variation of iptables configuration causes the system to hang on boot
Created attachment 109271 [details]
This variation of iptables configuration has worked for years w/o problems
This can not work, you are dropping all traffic on lo.