Jon Otterholm wrote: > On 2009-04-19 11.14, "Robert Watson" <rwat...@freebsd.org> wrote: >> On Sun, 19 Apr 2009, Jon Otterholm wrote: >>> I have a router running 6.4R that does not forward packets if I disable >>> PROMISC on the interface. Hardware is a Dell PE with two Intel 82541EI >>> chipsets (if_em). I have a number (~100) of vlan-interfaces on em0. >>> Everything works as aexpected if I turn on PROMISC on em0 but forwarding >>> stops if I disable it, I can still communicate with the router directly on >>> the same logical network (for example pinging interface adress on a vlan_if >>> from a client on that vlan) but all forwarding stops. >> >> Try disabling hardware VLAN taggging/processing? I believe you should be >> able >> to do this with "ifconfig em0 -vlanhwtag" (substituting appropriate interface >> names). It could be there's a bug in how hardware-optimized tag handling is >> being managed, as when promiscuous mode is used we re-insert vlan headers in >> software for the benefits of BPF. > > I tried doing this without any luck. Running GENERIC kernconf. > >>> Some info: >>> net.inet.ip.forwarding: 1 >>> net.inet.ip.fastforwarding: 0 (enableing this does not help) >>> net.inet.tcp.recvspace=1048576 >>> net.inet.tcp.sendspace=1048576 >>> kern.ipc.maxsockbuf=16777216 >>> >>> I use PF for filtering and disableing this does not help either.
Could you send the output from `ifconfig` and `netstat -rn`? That might help us figure out what's going on. -- Chris Cowart Network Technical Lead Network & Infrastructure Services, RSSP-IT UC Berkeley
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