On Fri, 25 Mar 2005 19:08:30 +0100, Peter Stuge <stuge-vlan@xxxxxxx> wrote: > On Fri, Mar 25, 2005 at 08:06:29AM -0800, Derek Fedel wrote: > > Hi All, > > > > I'm experiencing this strange issue where I can send an email fine > > from either VLAN as long as its text only, no attachment, but when I > > try to send with an attachment, it just hangs the email server process > > (qmail-smtpd in this case). Is this something that may be caused by an > > MTU problem? > > Everyone calls it an MTU problem but it has nothing to do with > transmission and everything to do with reception. The NIC/driver > combination you're using cannot receive fullsize tagged packets. > (since they are up to four bytes larger than the plain ethernet spec > maximum) > > Sorry if I misnomered. > > I've got a RealTek 8100 series card and a eepro100 as my > > two VLAN interfaces, and this phenomenon doesnt occur at an office > > that we don't have VLANs. > > Make sure you're using the e100 driver rather than the eepro100 > driver for the Intel card. > Actually, I am using the e100 driver. Not quite sure why I referred to it that way. Anyway, I'm replacing both of those cards with Fa311's (natsemi) and I'm almost positive that the natsemi driver has large packet handling. > //Peter > _______________________________________________ > Vlan mailing list > Vlan@xxxxxxxxxxxx > http://www.lanforge.com/mailman/listinfo/vlan >
