Q-in-Q tunneling

[Mukesh Kumar]

I am having a Cisco 2921 router having IOS c2900-universalk9-mz.SPA.151-4.M3.bin. In which i have installed the HWIC-4ESW module.

I need to configure q-in-q tunneling.

As it is given in the following cisco document that q-in-q tunneling is supported on this module. 
http://www.cisco.com/c/en/us/td/docs/routers/access/ISRG2/software/feature/guide/QinQ_L2PT.pdf

But when i enter into the interface it is not showing dot1q-tunnel mode.

This is the output from the router.

2921(config)#int f 0/0/0
2921(config-if)#switchport mode ?
  access  Set trunking mode to ACCESS unconditionally
  trunk   Set trunking mode to TRUNK unconditionally

Can anyone tell me why it is not showing dot1q-tunnel mode and what i have to do to configure this interface as a dot1q-tunnel interface?

Regards,
Mukesh Kumar
Network Engineer
Spooster IT Services

[Mark Pace Balzan · Accepted solution]

Hi Mukesh,

you should check that your ios version supports this feature. Check the config guide and release notes for your version, or use feature navigator cisco.com/go/fn 

also check if you need any license. As of ios 15.x some features need to be licensed

hope this helps

mark