10-01-2018 02:16 PM - edited 03-08-2019 04:17 PM
I have a device that I need to trunk the port to. Because we don't specify the native vlan as 1 or configure it at all. I have issues when I add the trunk to the port. All of the other subnets work fine but that native. I thought I could get this to work using the switchport trunk native vlan 1 on the port but it doesn't show on my screen like its a default config and doesn't work.
10-01-2018 02:21 PM - edited 10-01-2018 04:12 PM
Hello
@TRACY HARTMANN wrote:
I have a device that I need to trunk the port to. Because we don't specify the native vlan as 1 or configure it at all. I have issues when I add the trunk to the port. All of the other subnets work fine but that native. I thought I could get this to work using the switchport trunk native vlan 1 on the port but it doesn't show on my screen like its a default config and doesn't work.
Vlan 1 is indeed the default native vlan hence when you apply it it doesn't show up in the config of the trunk ( show int x/x switchprn)
Now when you say it doesn't work can you elaborate on what doesn't work?
10-01-2018 03:01 PM
Hi
You don't need to configure the switch ports to be native vlan 1 as it's the default on all switch ports.
you can check by
# show interface switchport
# show interface trunk
10-02-2018 12:46 AM
Hi,
AS mentioned the default native VLAN will be VLAN 1 but you are facing some issue then share the trunk port configuration from both ends.
Regards,
Deepak Kumar
10-02-2018 06:13 AM
Yes I realize that the default Vlan is 1 the issue is that I am connecting it to a non-cisco device and it is not seeing it tagged as 1. So when I make a port a trunked port it can see ALL of the other Vlans but Vlan 1. I was thinking if I used the Native Vlan command it would help tag it but that doesn't seem to be the case.
10-02-2018 06:30 AM
10-02-2018 06:43 AM
Hi,
I want to consider your mind on two points:
1. Are you using simple trunk port or making an allowed list on trunk port?
2. Did you try with making another VLAN (test) as native on the port?
Regards,
Deepak Kumar
10-02-2018 09:11 AM - edited 10-02-2018 09:17 AM
Hello
@TRACY HARTMANN wrote:
Yes I realize that the default Vlan is 1 the issue is that I am connecting it to a non-cisco device and it is not seeing ittagged as 1.
I would say it wouldn't as vlan 1 isnt tagged in the first place as its the native vlan by default, however you can tag the native if you wish by a global switch command -vlan dot1q tag native
Can you tell us what you connecting to?
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