If you configure gated to do OSPF and you have any IP aliases, gated dies and logs: Dec 9 13:37:08 kosh2 gated[247]: task_set_option: task OSPF socket 7 option GroupAdd(10) interface 205.216.92.9(eth0) group 224.0.0.5: Operation not supported by device Dec 9 13:37:08 kosh2 gated[247]: Abort gated[247] version 3-5-10: Operation not supported by device I tried changing the kernel back down to 2.0.35 and that didn't make any difference. I then installed the gated package from RHL 5.1 and it doesn't have a problem.
The Raw Hide gated-3.5.10-5 fixes a couple of problems with gated. Could you try that version and reopen this bug if your problem persists?