question in router subinterface understanding ?

[Dr.X]

hi  ,

i just want to ask ,

if i configured subinterface on router , lets say ==>gi0/0.10 and i put encapsulation dot1q 10

does that mean , that the traffic goining out the interface gi0/0.10 will be tagged with vlan 10 ??

i want to make sure ,  does the router tag it before it leave the subinterface ??

[Jan Rolny · Accepted solution]

Hello,

it depends on if it is native vlan or not. If native vlan is configured for vlan10 then it will not be tagged. If there is not native vlan configured so it will be tagged.

Regards,

Jan

[blau grana · Accepted solution]

Hello,

In your case packets will be tagged, but as Jan mentioned if you use that particular vlan as native vlan:

encapsulation dot1Q 10 native

In that case, packets will not be tagged.

Best Regards

Please rate all helpful posts and close solved questions

[Dr.X]

thanks alot .

regards