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Need help configuring Multi Vlan's on a single port in Cisco to connect a static printer


I have to connect a static printer (ie 10.10.1.25) using vlan 10 to a hub that has multiple devices connected that are using vlan 20 (ie 10.20.1.25). The hub is connected to switchport int gig0/12.

int gig 0/12 switchport access vlan 20

I've tried this config.....

int gig 0/12 / switchp mode trunk / switchp trunk native vlan 20 / switchp trunk allowed vlan 10

It does not work. Am I missing something? Please help!

6 replies

Userlevel 6
Hello Sammy,

If the device you are connecting is truly a hub then it will not pass tagged traffic to the switch. It will simply broadcast all the traffic into the untagged vlan on the cisco switch (Native vlan). In this scenario you will never be able to get multiple VLANs to communicate through a hub.
Patrick Voss wrote:

Hello Sammy,

If the device you are connecting is truly a hub then it will not pass tagged traffic to the switch. It will simply broadcast all the traffic into the untagged vlan on the cisco switch (Native vlan). In this scenario you will never be able to get multiple VLANs to communicate through a hub.

Thanks Patrick!
Userlevel 7
Hi Sammy,
The Hub is primarily a forum for discussion of topics related to Extreme Networks' products, services, and concepts. We're glad to have you! However, it seems your question pertains to an issue you're experiencing with Cisco equipment. That said, I'd bet someone here in our community will have some tips to offer up. We're a helpful group with a very wide set of network knowledge.

EDIT: See ^, Patrick beat me to it!
Drew C. wrote:

Hi Sammy,
The Hub is primarily a forum for discussion of topics related to Extreme Networks' products, services, and concepts. We're glad to have you! However, it seems your question pertains to an issue you're experiencing with Cisco equipment. That said, I'd bet someone here in our community will have some tips to offer up. We're a helpful group with a very wide set of network knowledge.

EDIT: See ^, Patrick beat me to it!

My apologies Drew! But I do appreciate your help.
Userlevel 6
The Hub Community is fabulous and open....this is just yet another example.

As Drew said, we're glad you joined us and hope you're rocking some high-quality purple networking gear too!
Userlevel 6
Have you asked cisco? I do not believe it is possible without some classification. The switch does not know to what vlan assign incomming frames. I know how to do it on our switches. Good luck.

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