Description of problem: IPv6 is not displayed in system detail for RHEL5 clients, but for RHEL6 yes. This bug is similar to bug 821424, but I tried to add IPv6 reverse record to /etc/hosts with no effect. And this bug is only with RHEL5 clients, RHEL6 clients are OK. Satellite-5.4.1 is OK, because it doesn't display IPv6 field. Version-Release number of selected component (if applicable): Satellite-5.5.0-RHEL6-re20120911 (RHEL5, RHEL6) How reproducible: 100% Steps to Reproduce: 1. We have got a server with Sat 5.5.0 on RHEL6 (or RHEL5) and client's machine with RHEL5 (with IPv6 address). 2. We registre the client's machine to Satellite. (In my case , I used activation key). 3. We can try rhn-profile-sync, but no effect. 4. At page /rhn/systems/details/Overview.do (system detail), we get IPv6 Address: unknown At page /rhn/systems/details/SystemHardware.do (hardware), we get empty field. Actual results: IPv6 Address: unknown (system detail) IPv6 Address: (hardware) Expected results: We get IPv6 address similarly as with RHEL6 clients. Additional info: ONLY with RHEL5 clients.