That is correct in a case of 802.1q trunks. In a case of ISL, there is no native VLAN, no matter what "show interface switchport" says.
-- Marko Milivojevic - CCIE #18427 (SP R&S) Senior CCIE Instructor - IPexpert On Thu, May 10, 2012 at 7:29 AM, Bob McCouch <[email protected]> wrote: > I believe the exception there is L2 control packets (VTP, CDP, STP, DTP, > etc) that will all be sent untagged over the link whether the native VLAN > is actually allowed on the trunk or not. > > Marko, do I have that right? > > > > On Thu, May 10, 2012 at 8:33 AM, Rob Hoover <[email protected]> wrote: > >> You have to list the native VLAN in the allowed statement or the packet >> will be dropped. >> On May 10, 2012 3:31 AM, "imad Abdallah" <[email protected]> >> wrote: >> >> > >> > Hi,I'm bit confused regarding native vlan and trunk allowed vlan. Let's >> > say we have two switches connected via trunk. Both switches have the >> > default native vlan (vlan 1). On the trunk between them, we issued the >> > command: swi trun allo vlan 2-100. So the native vlan 1 is not allowed on >> > the trunk. is it mandatory for the native vlan to be allowed on thee >> trunk? >> > Do we need to change the native vlan from (1) to any other vlan that are >> > allowed through the trunk? Thanks >> > _______________________________________________ >> > For more information regarding industry leading CCIE Lab training, please >> > visit www.ipexpert.com >> > >> > Are you a CCNP or CCIE and looking for a job? Check out >> > www.PlatinumPlacement.com >> > >> > http://onlinestudylist.com/mailman/listinfo/ccie_rs >> > >> _______________________________________________ >> For more information regarding industry leading CCIE Lab training, please >> visit www.ipexpert.com >> >> Are you a CCNP or CCIE and looking for a job? Check out >> www.PlatinumPlacement.com >> >> http://onlinestudylist.com/mailman/listinfo/ccie_rs >> > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > www.PlatinumPlacement.com > > http://onlinestudylist.com/mailman/listinfo/ccie_rs _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com http://onlinestudylist.com/mailman/listinfo/ccie_rs
