To my knowledge, the IOS based switches I have in my network, the vlan 1 can't be removed from the trunks, in the case of 2924/2950/3524...
Larry Letterman Network Engineer Cisco Systems ----- Original Message ----- From: "Jim Devane" To: Sent: Wednesday, January 29, 2003 3:53 PM Subject: Defautl VLAN woes [7:62152] > All, > > This will probably sound like a horrendous situation but unfortunately > networks are not always master-planned communities! > > However, I have a Cisco router connected to a 2924 switch connected to a > Riverstone 8600 > There are 2 100FX connections coming from the GSR to the 2924 and 2 10/100 > (Cu) connection from the 2924 to the 8600 (yes, a loop) > > The first connection is a routed connection with the GSR and the 8600 both > having L3 addresses on their respective ports ( .1 and .2 /30) > The second connection is a L2 tagged connection trunking VLANs 25 and 26. > > When I set the 2924 for switchport mode multi it will move the VLANS but > raises hell since the MTU is off and there is packet loss. > To fix that scenario I use siwtchport mode trunk to get the right MTU. But > my problem is this..in trunk mode the defualt VLAN, VLAN 1 is automatically > included. I have tried to remove it (switchport mode trunk allowed-vlans > remove 1) but it does not remove. I can exclude the default VLAN on the > riverstone, but wiht the Cisco transporting it the RS freaks out since it > hears it's own MAC on two different ports. The RS had no problem when the > Cisco was in multi mode since the default VLAN was not transported > > x.x.64.1/30 x.x.64.2/30 > GSR 7/0 ----------------2924 ------------------ et.2.2 RS8600 > 7/1 ------ 25------ -----------25----- et.2.4 > > My question/problems: > > Does anyone know if it is possible to have a trunk on a 2924 and not include > VLAN1 ? > > Is my only other alternate to make the routed connection connect to access > ports on the 2924 and exclude that VLAN from the trunk on the tagged > connection? > > Any ideas? > > Thanks for you time and in advance for any help, > Jim [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=62156&t=62152 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
