Jan Kiszka wrote: > Jan Kiszka wrote: >> Leonardo Pappagallo wrote: >>> hi Jan, >>> I use RTnet 8.3.1. >> I don't think so - or someone is developing another RTnet... ;) >> >> 0.8.3? >> >>> I have noticed that the real time network drivers (8139too, eepro100, >>> via_rhine, 3cXXXX) don't run in promiscue mode (linux driver run in that >>> mode). >>> I have two ethernet port and in the first port runs RT-net network >>> (rteth0, vnic0) and in the second port runs no real-time network (eth0). >>> I need to use the promiscue mode functionality in order to realize a >>> network >>> bridge between these two networks. >>> >>> I have seen into rtnetconfig that there is the promiscue mode option but I >>> think that doesn't run, because when I use RTcap with Ethreal I only see >>> packets to my host and broadcast, i don't see some packets also when I use >>> an Hub device. >>> Have you a solution for this problem? >> I'm not aware of any problem with promisc mode. I just did a quick check >> (latest svn, rt_8139too), and at least the number of IRQ events for the >> NIC is increasing when I switch on promisc mode while there is "foreign" >> traffic on the cable. Does this happen on your boxes as well? I have no >> version with rtcap enabled at hand, otherwise I would have tested this >> as well. > > Now re-checked with tcpdump+rtcap - still no problems her, all packets > can be captured when promisc mode was switched on. >
During the discussion with a user about his problem that MAC address setting doesn't always work, I realised a potential reason also for the observed behaviour here: Both MAC address setting and promisc mode change are only allowed on down->up transitions of a device (RTnet philosophy: avoid hardware reconfiguration during runtime). So far RTnet accepted such changes but entered inconsistent states. I have prepared now a patch that detects and rejects illicit requests of rtifconfig, I'm just waiting for berlios to accept checkins again... Jan
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