+++ This bug was initially created as a clone of Bug #119614 +++ When having IPv6 enabled (sysconfig/network having NETWORKING_IPV6=yes), the ifdown script triggers kernel module autoloading of "tun6to4" (even if there is no 6to4 tunneling configured) - which does not exist. I guess the scripts are trying to check the device "tun6to4" for existence and config, but this device doesn't exist, and there is a mapping missing in modprobe.conf.dist which maps "tun6to4" to "sit". I'm not sure wether my analysis is correct, so I'm assigning this bug to initscripts first... maybe it needs forwarding to the "modutils" component with a request to add the alias. Version-Release number of selected component (if applicable): initscripts-7.31.18.el-1 Even this may have been fixed in latest Fedora, it needs an errata for RHEL3 as the problem also occurs there.
This problem is resolved in the next release of Red Hat Enterprise Linux. Red Hat does not currently plan to provide a resolution for this in a Red Hat Enterprise Linux update for currently deployed systems. With the goal of minimizing risk of change for deployed systems, and in response to customer and partner requirements, Red Hat takes a conservative approach when evaluating changes for inclusion in maintenance updates for currently deployed products. The primary objectives of update releases are to enable new hardware platform support and to resolve critical defects.