Hi,
On Thu, Feb 07, 2008 at 11:20:52AM -0600, Kiecker, Alan W wrote: > I need to set up ports on a 2960-24TC-L so that outbound ports retain > the VLAN tag. > > I have configured the ports as trunks with VLAN IDs 7 and 13. The > native VLAN is 13. This should tag any inbound untagged packets with > VLAN 13. no. as far as I remember "native vlan" means: when a packet arrives on a port belonging to this vlan, do _not_ tag it when sending it over a trunk. "native vlan" kind-of means: "play that 802.1q does not exist" ;-) This is what I want, but outbound packets are a different > story. > > The command reference states in the Usage Guidelines for the "switchport > trunk" command that "If a packet has a VLAN ID that is the same as the > sending-port native VLAN ID, the packet is sent without a tag; > otherwise, the switch sends the packet with a tag." > > My interpretation of this is that outbound packets with VLAN ID 7 will > be sent with the tag, but packets with VLAN ID 13 will be sent without > the tag. > > Is there anyway to not have this tag removed? yes... just use another vlan as the native one (and, in your case, do not use vlan 7. use - say - vlan 666). and: "removed" is a bit misleading (term) here. packets arriving at ports (usually) have no tags at all (why should they, anyway?). They get tagged when sent over a trunk (to inform the other end: "this packet belongs to vlan xy"). So (usually) there's nothing to be "removed". just something (= the tag) to be added. in all cases except for the "native vlan"... thanks, Enno Check out www.troopers08.org! ERNW GmbH - Breslauer Str. 28 - 69124 Heidelberg - www.ernw.de Tel. +49 6221 480390 - Fax 6221 419008 - Cell +49 173 6745902 PGP FP 055F B3F3 FE9D 71DD C0D5 444E C611 033E 3296 1CC1 Handelsregister Heidelberg: HRB 7135 Geschaeftsfuehrer: Roland Fiege, Enno Rey _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
