HWIC-4ESW on ISR 2821

Answered Question
Dec 29th, 2009

Hello,

I'm trying to configure vlans for the installed HWIC-4ESW on a 2821 router running the IOS image c2800nm-advsecurityk9-mz.124-3i.bin.  I've entered the following:

R(config)# vlan ?

accounting VLAN accounting configuration

As you can see above, I'm missing the vlan configuration options (e.g. database...)?

How do I configure vlans with the above image?

Thanks,

Frank

I have this problem too.
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Correct Answer by Jon Marshall about 6 years 11 months ago

fntowo2009 wrote:

Hello,

I'm trying to configure vlans for the installed HWIC-4ESW on a 2821 router running the IOS image c2800nm-advsecurityk9-mz.124-3i.bin.  I've entered the following:

R(config)# vlan ?

accounting VLAN accounting configuration

As you can see above, I'm missing the vlan configuration options (e.g. database...)?

How do I configure vlans with the above image?

Thanks,

Frank

Frank

If memory serves me correct (and it may not do !!) i beleiev you have to use vlan-database mode to configure vlans on the ISR ie.

R# vlan-database

then from there you should be able to configure vlans.

Jon

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Correct Answer
Jon Marshall Tue, 12/29/2009 - 12:35

fntowo2009 wrote:

Hello,

I'm trying to configure vlans for the installed HWIC-4ESW on a 2821 router running the IOS image c2800nm-advsecurityk9-mz.124-3i.bin.  I've entered the following:

R(config)# vlan ?

accounting VLAN accounting configuration

As you can see above, I'm missing the vlan configuration options (e.g. database...)?

How do I configure vlans with the above image?

Thanks,

Frank

Frank

If memory serves me correct (and it may not do !!) i beleiev you have to use vlan-database mode to configure vlans on the ISR ie.

R# vlan-database

then from there you should be able to configure vlans.

Jon

fntowo2009 Tue, 12/29/2009 - 13:56

Thanks Jon!

My mistake. I was trying to enter the vlan database in config mode...

Cheers,

Frank

Paolo Bevilacqua Tue, 12/29/2009 - 14:20

My understanding is that in recent (few years) IOS, vlan configuration is not needed anymore, and vlan database

obsoleted.

Jon Marshall Tue, 12/29/2009 - 14:23

Paolo

vlan-database is not the preferred way on switches these days ie. you simply configure vlans from the config prompt but there is still a need for a vlan database on the switches, you just configure it differently.

As for the ISRs, for some reason they still use vlan database mode rather than config mode to configure vlans. Not sure why.

Jon

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