I have a ISR 4321 Router in my Cisco Packet Tracer, and I added a NIM-ES2-4 module, but the The NIM-ES2-4 provides four switching ports.

which are Gig0/1/0 - Gig0/1/3. because I want to use the four ports as Router interface to connect four Switches. but the module only provide switchports.

enter image description here

So, how to solve this problem?

I tried use the no switchport, but there is no this command.

Router(config-if)#no switchport 
% Incomplete command.
  • Have you tried no switchport on the interface configuration? – user36472 Nov 15 '18 at 11:45
  • I can not, there is no this command. you can see the NIM-ES2-4 module. – three-blocks Nov 15 '18 at 11:56
  • Use jonathanjo's method below, that is your only chance then. – user36472 Nov 15 '18 at 12:07
  • I am also experiencing the same issues. now my question is this? after creating the vlans on the routers, are we meant to configure the LAN interface on the same router? thanks – Charles Lazarus Dec 10 '19 at 12:02

The usual way is to put the separate switch ports into different VLANs, then create virtual interfaces.

That is, four configurations like this:

interface Gig0/1/0
 switchport access vlan 10
 no ip address

interface Vlan10
 ip address

This works with any router+switch, not just switch modules inside routers, but you have to have a trunk between the router and switch, or several cables.

(Edit: see Andrey's vital comment: you might well need to create the VLANs too, depending on models/versions etc.)

  • 2
    I would also mention, that probably it will require actual VLAN creation: #(conf-t) vlan 10. In some cases devices will create non-existing VLAN right after switchport access vlan 10, but sometimes they're not. – Andrey Prokhorov Nov 15 '18 at 12:27
  • Very good point, updated. – jonathanjo Nov 15 '18 at 12:30
  • 1
    You could also mention sub-interfaces on a router interface. – Ron Maupin Nov 15 '18 at 16:27
  • @jonathanjo So, do you mean the Router only use one physical interface, and create multi virtual interfaces? – three-blocks Nov 16 '18 at 3:03
  • @three-blocks yes exactly like that. You use one physical interface and then create SVI's (VLAN) to route instead. – user36472 Nov 16 '18 at 8:04

4-ports non-POE Layer 2 Gigabit Ethernet Switch Network Interface Module (NIM-ES2-4)

This module provides only Layer-2 support, so you can't use it's interfaces in Layer-3 mode.

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