From Bugzilla Helper: User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5b) Gecko/20030901 Description of problem: ifcfg-eth0-range1 inherits the IPADDR from ifcfg-eth0 and then uses the netmask from ifcfg-eth0-range1 to define a new ( sometimes wrong ) local subnet. This can cause routing problems. Problem occurs as far back as RH7.3 Version-Release number of selected component (if applicable): initscripts-7.14-1 How reproducible: Always Steps to Reproduce: 1. define eth0 to be a /29 subnet ( mask 255.255.255.252 ) 2. create a 5 element range for eth0:{0~5) in a /26 subnet (mask 255.255.255.192 )(almost any two CIDR sizes will do) 3. service network restart netstat -rn Actual Results: eth0 's address will have two different local subnets defined... one a /29 and one a /26. Any other addresses within the /26 subnet that are not REALLY local to eth0 will not route properly. (i.e. via default route). It looks like the problem in in the way that the ifcfg-eth0-range files are handled.. In the scripts, they are using the value of IPADDR and NETMASK to create a route... Since the range files don't set IPADDR, it is inherited from ifcfg-eth0 thus you get : route add -net (IPADDR from ifcfg-eth0 && NETMASK from ifcfg-eth0-range0 ) gw $GATEWAY if the netmasks from the two files match, then you're fine. if they don't then some near-neighbours (networking-wise) will appear to be unreachable. Expected Results: eth0 only has one one 'local' route/netmask. Additional info: Problem happens independent of the addresses for the range workaround: Add the following to the end of ifcfg-eth?-range* IPADDR="$IPADDR_START" This will cause the scripts to create a spurious route for the first address in the range (with an apporpriate netmask) as opposed to one for eth0 (with an incorrect netmask). I think that the real solution is to not do initialization for range scripts... but that's a bit more work to write up.
Closing bugs on older, no longer supported, releases. Apologies for any lack of response. Please try to reproduce this on a current release, such as Fedora Core 4. If the issue persists, please open a new issue.