Re: VLAN and Linux system services

On Thu, Mar 24, 2005 at 10:24:33AM -0500, [email protected] wrote:
> telnetd, sshd, inetd, etc. aren't VLAN-aware, are they?  Am I right
> that the way to make those things work on a VLAN is by creating
> VLAN-specific interfaces (eth0.vid, etc.)?  So, if I had interfaces
> for VLAN 23 and 567 and frame tagged with VLAN ID 234 came in, it
> would get dropped because there's no interface for it, right?  But
> if I had an application like Ethereal listening on a raw socket,
> I'd see that message even though the intended application (say,
> telnetd) would never see it.

Yep, that's right.

libpcap on the physical interface, set to promiscuous mode sees
everything on the wire even if the networking stack ignores the
packets.


//Peter