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. Regards, -- Jeremie Le Hen < jeremie at le-hen dot org >< ttz at chchile dot org > _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "[EMAIL PROTECTED]"
