FORWARD_IPV4 set to true in /etc/sysconfig/network does not set /proc/sys/net/ipv4/ip_forward to 1 as it did in 6.1. Happened on my home firewall/masquerade box running rc1.2.
This has been moved to the net.ipv4.ip_forward variable in /etc/sysctl.conf, but the installer needs to be modified to stop adding FORWARD_IPV4 to /etc/sysconfig/network. Failing that, initscripts might need to migrate the setting to preserve compatibility with older machines and upgrades.
initscripts *does* migrate the settings on upgrade; however, it won't check for changes made *after* the upgrade. This should be covered in the release notes. Assigned to the installer so we can check it there.
Fixed in latest internal version.