On Thu, Nov 02, 2006 at 06:12:22PM +0100, 'Jeremie Le Hen' wrote: > Hi Raymond, > > On Tue, Oct 31, 2006 at 11:10:47AM -0500, Raymond Wagner wrote: > > Your other method is that I keep NAT on the internal interface as normal, > > and then create VLANs, bridged to the external interface, to each computer > > with an external IP. Those machines would communicate as normal on the > > internal network, but use the VLAN interface for external access. I've not > > used VLANs before, so I don't know exactly how they work. I know the > > wrapper causes some overhead, and my switch drops packets >1500 bytes. Do I > > have to lower the MTU on the internal network, or just the VLANs and > > external? Also, will my ISP know not to send the larger packets? > > 802.1q (namely VLAN) adds a 4-bytes header which means your network > adapter must support a MTU of 1504 bytes. AFAIK, most of network > cards do this. I haven't heard of problems like this so far. > > I've Cc'ed Andrew Thompson which has imported if_bridge(4) from > OpenBSD into FreeBSD. He will likely be able to answer your question > and tell whether it is possible to bridge two VLAN interfaces > (attached to a physical interface) with another physical interface.
That will work fine. The area where the bridge lacks is bridging vlan trunks but you do not appear to be doing that. Andrew _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
