Hello! > all has strange semantics; some values are broadcast, some are not. All the values are broadcast. Special values are: "forwarding" and, as result, "accept_redirects". Change in "all/forwarding" overwrites settings on another interfaces and changes "accept_redirects". Which is really funny, but really necessary as soon as per-interface "forwarding" flag exists. I feel a compunction that perf-interface "forwarding" is created, it is useless, ambiguous and painful feature. > Probably only Alexey remembers them correctly (he invented it); I do not remember anything including their names. But as soon as name is known, further is self evident. If it is difficult to guess look into linux/inetdevice.h, where rules of "broadcasting" are described unambiguously. Alexey - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html