On 02/08/2011 11:29 AM, Jeff Mitchell wrote: > Hello, > > I have a bridge to various interfaces. There is an IP address on the > bridge, and hosts on the interfaces connected to the bridge use the > bridge's IP address as a gateway. STP is off and the forwarding delay is > set to 0. > > This has been working fine, however, today I needed to change around > some IPv6 addresses on the connected hosts. I made the IPv6 changes and > rebooted those boxes, only to find that suddenly no traffic -- IPv4 *or* > IPv6 -- was passing through the bridge. > > When I pulled up tshark to see what was going on, traffic suddenly > started flowing again. And even as I type this, as long as tshark is > running on that interface (no matter what the capture filter is), > traffic is flowing. The moment I stop tshark from running, traffic > stops. IOW, the bridge is only passing traffic while in promiscuous mode. > > I didn't change the IP address on the bridge itself. As far as I can > tell I didn't do anything odd whatsoever. But I have no idea what's > causing this and I'd really like to not reboot the box if at all possible. > > Does anyone have any idea what might be causing this and/or how to > troubleshoot this? What kernel version? And, you are sniffing the physical interface, or the bridge? Maybe send us output of brctl show, and ifconfig -a? Promisc bit is sometimes hard to detect properly, so if you can, please post /sys/class/net/[iface-name]/flags If bit 0x100 is set, the NIC is actually promisc, regardless of what ifconfig -a shows. Thanks, Ben > > Thanks, > Jeff > _______________________________________________ > Bridge mailing list > Bridge@xxxxxxxxxxxxxxxxxxxxxxxxxx > https://lists.linux-foundation.org/mailman/listinfo/bridge -- Ben Greear <greearb@xxxxxxxxxxxxxxx> Candela Technologies Inc http://www.candelatech.com _______________________________________________ Bridge mailing list Bridge@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/bridge
