01-22-2019 06:56 PM
HI,
We just got an ISR 4331 and I am in the process of configuring it.
However, when I try to access interface Vlan 1, I am unable to access interface Vlan 1:
RTR(config)#interface vlan1
^
% Invalid input detected at '^' marker.
I can access interface Vlan 1 on another pre-configured router with the same command so I am not sure if I missed something in configuration? Also, I can access vlan 1 but not through the interface command:
RTR(config)#vlan 1
RTR(config-vlan)#
Could someone help me, please? Thanks.
Solved! Go to Solution.
01-24-2019 01:12 AM
RTR(config)# interface vlan1
and
RTR(config)# vlan 1
are different commands
the first configures an interface for the vlan so you can give it an ip-address
the second configures a vlan so you can give it a name, not an ip-address
try show vlan and show interface vlan [n] on both routers
if a router is a real router (L3 device) , then it does not know about vlan's (L2 ) !
however it may recognize dot1q encapsulated (sub)interfaces.
you can check the modules installed with show inventory
01-22-2019 07:32 PM
Hi @csasak,
Is it possible that the switch module is missing from your device? You could check the inventory on your device.
Regards
01-23-2019 10:58 AM
@luis_cordova wrote:Hi @csasak,
Is it possible that the switch module is missing from your device? You could check the inventory on your device.
Regards
I had thought about that being the problem but do you know how I could check that? I didn't order this device so I'm not sure what was ordered with it. I've done "show platform" and "show hardware" commands but I don't know what to look for or look at.
01-22-2019 07:36 PM
01-22-2019 10:57 PM
Adding to other post check - Confirm that on the inventory of the device.
If both the device same hardware like the other one working for you,
Then follow below guide to configure VLAN :
01-24-2019 01:12 AM
RTR(config)# interface vlan1
and
RTR(config)# vlan 1
are different commands
the first configures an interface for the vlan so you can give it an ip-address
the second configures a vlan so you can give it a name, not an ip-address
try show vlan and show interface vlan [n] on both routers
if a router is a real router (L3 device) , then it does not know about vlan's (L2 ) !
however it may recognize dot1q encapsulated (sub)interfaces.
you can check the modules installed with show inventory
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