Turn WAN port into switchport

[Codeblix]

Hi all, 

I have a cisco ISR-C921-4p, it have 4 lan and 2 wan port.

I want to turn set gi4 as vlan 45 and gi5 as vlan 46

config t

int gi4

switchport mode access

switchport access vlan 45

 the above command does not work, any solution?

[paul driver]

Hello

If the rtr support sub-interfaces then you could do the follwoing:

int gi4

no shut

int gi4.45

encpsualtion dotq 45

ip address x.x.x.x

nt gi5

no shut

int gi5.46

encpsualtion dotq 46

ip address x.x.x.x

[balaji.bandi]

I do not believe you can convert the WAN port in to switch port (As Paul suggested you can do the same config  too....)

It already has 4 switch ports you can use.

Also, follow the below guide :

https://www.cisco.com/c/en/us/td/docs/routers/access/900/software/configuration/guide/900SCG/vlanconf.html