cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
4430
Views
9
Helpful
18
Replies

ASA Subinterfaces

networker99
Level 1
Level 1

I am trying to configure sub interfaces on a Cisco ASA running v7.2 but it will not let me use the sub interface command?

18 Replies 18

Hi,

If you have an interface say it gigabit ethernet 0/1 in order to create a subinterface of gigabitethernet 0/1 you have to issue the command:

interface gigabitethernet 0/1.x where x is a number (say it 1..for example)...

I hope this help.s

Best regards.

Massimiliano.

I tried that but I get the following

ciscoasa(config-if)# int ethernet0/0.100

^

ERROR: % Invalid input detected at '^' marker.

andrew.prince
Level 10
Level 10

check your license - do you have a ASA5505 ?

Yes, which license should I have?

To be above to trunk and use sub-interfaces you need "Security Plus" Which allows for 20 vlans and trunking support.

HTH>

thanks

andrew.prince
Level 10
Level 10

check your license - do you have a ASA5505 ?

I got similar problem.

My ASA says ethernet instead of Giga.

I def have Security Plus license, Check in "about" via ASDM.

Please help.

Marcin

Hi Marcin,

do you have the same ASA 5505???

Varun

Thanks,
Varun Rao

Because ASA 5505 only have ethernet ports not gig ports.Here's  the datasheet:

http://www.cisco.com/en/US/prod/collateral/vpndevc/ps6032/ps6094/ps6120/product_data_sheet0900aecd802930c5.html

Varun

Thanks,
Varun Rao

Thanks, it is ASA 8.2

But I did that:

ciscoasa(config)# int e0/0

ciscoasa(config-if)# no nameif

ciscoasa(config-if)# no sec

ciscoasa(config-if)# no security-level

ciscoasa(config-if)# no ip ad

ciscoasa(config-if)# no ip address

and got this when trying to create subinterface:

ciscoasa(config)# int ethernet 0/0.1

                      ^

ERROR: % Invalid input detected at '^' marker.

Any ideas?

you create a vlan interface, then assign the physical interface to the vlan.

Int vlan x

Interface fa0/0

Switchport access vlan x

Sent from Cisco Technical Support iPad App

You cannot create sub-interfaces on the physical interface on the ASA 5505 but you would need to create vlan interfaces as specified above.

Thanks,

Varun

Thanks,
Varun Rao

I thought that with security plus license I can?

Basically I need outside interface to listen on more than 2 public IPs.

As outside interface is on /28 network.

If I create config as Andrew adicesed, will that work?

Marcin.

Getting Started

Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: