L2 interface to L3 interface

[vipinrajrc]

Hi Experts,

Is it possible to convert a L2 interface to L3 interface????

Today i tried to configure IP address in 1811router. Interface fa6.

But it showed some error as "L2 interface is ot able to configure an IP address." I have enable "ip routing" in this router, but still same error message.

Is there anyway to do this????

Thanks

Vipin

[cadet alain]

Hi,

to convert a L2 port to a L3 port the command is no switchport under the interface then you can configure an ip address.

I'm not sure though that you can do this on the switch module on a 1811.

Regards.

Alain.

[vipinrajrc]

Hi,

I Have tried it...

It is showing like incomplete commanad..

Please see the following output..... Which one should i select??? Right now that port is conncted to a switch......

1811(config-if)#no switchport
% Incomplete command.

1811(config-if)#no switchport ?
  access     Set access mode characteristics of the interface
  mode       Set trunking mode of the interface
  priority   Set 802.1p priorities
  protected  Configure an interface to be a protected port
  trunk      Set trunking characteristics of the interface
  voice      Voice appliance attributes

Thanks

Vipin

[Ashish.S]

Hi vipin

Make sure the switch model. you can try # set system mode route it will work.

Regards

Ashish kumar

[Latchum Naidu · Accepted solution]

Hi Vipin,

The "switch modules in routers" vary a bit. I would guess that
yours might be like a one or two port router with a 9 port HWIC
ethernet module in it.

If it is you can do something like

create vlans 3, 4, 5, 6, 7, 8

interface FastEthernet2
switchport mode access ! may or may not be needed
switchport access vl 2

interface FastEthernet3
swit mode access ! may or may not be needed
sw access vl 3

int vl 2
ip address x.x.x.x
no shut

int vl 3
ip address y.y.y.y
no shut

You create vlans either with

conf t
vlan 2
vlan 3
end

or

vlan dat
vl 2
vl 3
exit

Latter roughly; may have forgotten.
You have to make a point of saving it anyway.
Think it may prompt.

On the 9 port HWIC it is not possible to
assign an IP address directly to a port.

Please rate the helpful posts.
Regards,
Naidu.

[vipinrajrc]

Hi Naidu,

Thank you very much........It is working.........

Thanks

Vipin

[Latchum Naidu]

Hi Vipin,

Glad my post helped you...Keep posting CSC

Please rate the helpful posts.
Regards,
Naidu.

[Ashish.S]

Yes, using #no switchport command you can make interface as L3 service. This command generally uses when we are going to configure ISP connection on sg350 switch.
Thanks & Regards
Ashish Kumar