Re: VLAN issues

[Joerg Sonnenberger <joerg@xxxxxxxxxxxxxxxxx>]

On Sun, Mar 25, 2007 at 06:09:06PM +0200, Gergo Szakal wrote:
>      The rest of the ethernet NICs supported by DragonFly can run VLANs using
>      software emulation in the vlan driver.  However, most of them lack the
>      capability of transmitting and/or receiving oversized frames.  Using such
>      a NIC as a parent interface implies a reduced MTU on the corresponding
>      vlan interfaces.  In the modern Internet, this is likely to cause tcp(4)
>      connectivity problems due to massive, inadequate icmp(4) filtering that
>      breaks the Path MTU Discovery mechanism.

It isn't likely to be that bad due to PPPoE :-)

Joerg