The nth module is not compiled iptables v1.2.11: Couldn't load match `nth':/lib64/iptables/libipt_nth.so: cannot open shared object file: No such file or directory The client would like the have the "nth" module as detailed in the iptables man page to be included with our kernel. This module matches every 'n'th packet against the specified rule. 2. Business Justification The client is attempting to migrate a load balanced cluster onto his Z series machine. As cluster suite is not currently available/supported on Z series he is having to use Round Robin DNS to load balance across their hipervisor to several z/VM guests. They feel they would have better reliability/performance using the 'nth' module approach. 3. Proposed Target Releases As the migration is still in a planning/testing phase, the desired release is for RHEL4/5. 4. Architectures Required This client only needs zSeries. 5. Technical Status There appears to be a patch avaiable via Patch-O-Matic: http://www.fifi.org/doc/iptables-dev/html/netfilter-extensions-HOWTO-3.html#ss3.7 6. Testing and Verification Code is upstream so I assume rudimentary troubleshooting has been undertaken already.