> eth0 is a BNC network, if that matters. > Now the problem is that the bridge appears to sometimes "reflect" frames > received on eth0 back to eth0. When I ping from one PC another PC on the I was going to tell you to check the terminators, I've seen many weird things in BNC nets because of terminator problems, but reading this... > On the bridge with brctl showmacs br0 I can see where 00:A0:24:CF:E8:8E > is supposed to be. It should be on port no. 1. Nevertheless, > brctl showmacs br0 sometimes shows the 00:a0:24:cf:e8:8e on port no. 2, > i.e. eth1. This is when the duplicates/reflections occur. The bridge should not learn that that mac is on port 2 if it is not, are you shure there is no loop in the net, or another thing that could be causing packages with that mac to be on port 2? > 2 00:00:c0:0a:26:69 no 10.52 > 2 00:a0:24:cf:e8:8e no 0.37 > then after unplugging eth1 on the bridge and pinging from 192.168.0.1 to > 192.168.0.39: > 1 00:00:c0:0a:26:69 no 36.85 > 1 00:a0:24:cf:e8:8e no 44.13 Note that not only one machine is changing the interface, I see two on the output you sent, don't know if there can be even more at some other time. > The bride does not work; I cannot ping through it; strangely though dhcp > does work through it, as does arp resolution. > My network is very simple. There's only that one bridge linking two > ethernet collission domains. After reading this I don't know what to say, I see no logic in any of this things, I wouldn't blame the bridge, maybe a harware/driver problem, I wouldn't know, I'm thinking in some interrupt sharing or something, but it doesn't make sense at all. > Unlike what /usr/share/doc/bridge-utils/README.Debian.gz says, STP seems > to be disabled by default. Yes, there was a change in the kernel default since I wrote that document, and as the document says, they can change anytime. > Any help on figuring out what's going wrong would be very much > appreciated. I'm sorry but I wouldn't know what to say about all this. > completely puzzled, Georg Me too, if you find what is going on... just post it on the list. Regards... -- Manty/BestiaTester -> http://manty.net
