topic Sub Interface on Cisco ASA 5505 in Network Security

Sub Interface on Cisco ASA 5505

ray_stone — Mon, 11 Mar 2019 15:32:42 GMT

Hi Experts, Can we make sub interface on Cisco ASA 5505 model and if its possible then do that interface need to be upgraded into Trunk Port. Pls explain briefly. Thanks

Re: Sub Interface on Cisco ASA 5505

andrew.prince — Fri, 15 May 2009 08:49:55 GMT

No - it's not possible, with a basic license, you need a Security Plus license.

HTH>

Re: Sub Interface on Cisco ASA 5505

ray_stone — Fri, 15 May 2009 08:54:23 GMT

Yes, we have Security Plus License installed.

Re: Sub Interface on Cisco ASA 5505

andrew.prince — Fri, 15 May 2009 09:03:34 GMT

the just create a sub interface on the physical interface that connects to a trunk port:-

interface ethernet 1.1

vlan <>

HTH>

Re: Sub Interface on Cisco ASA 5505

ray_stone — Fri, 15 May 2009 09:14:06 GMT

Can you explain briefly and give an example, if possible. Thanks

Re: Sub Interface on Cisco ASA 5505

andrew.prince — Fri, 15 May 2009 09:17:08 GMT

See my previous post - explanation & example already provided.

Sub Interface on Cisco ASA 5505

Maykol Rojas — Thu, 03 Nov 2011 07:45:49 GMT

Model Guidelines

Subinterfaces are not available for the ASA 5505 ASA

http://www.cisco.com/en/US/docs/security/asa/asa82/configuration/guide/intrface.html

Mike

Sub Interface on Cisco ASA 5505

kafsavant — Wed, 24 Apr 2013 13:27:44 GMT

I have been working on a configuration in which I wanted to do subinterfaces as well. I found that you can not create them even with having a security plus license.

Keith

Sub Interface on Cisco ASA 5505

Jouni Forss — Wed, 24 Apr 2013 13:31:18 GMT

Hi,

To my understanding you only configure Vlan interfaces on the ASA5505 just like a L3 Switch.

For example

interface Vlan10

nameif LAN

security-level 100

ip add 10.10.10.1 255.255.255.0

interface Ethernet0/1

switcport access vlan 10

Then you either make physical ports on the ASA5505 as Access Mode ports on that Vlan ID or configure a physical interface as a Trunk

Configuring the Trunk will require the Security Plus License.

- Jouni

Sub interfaces are available

Peter Long — Sat, 18 Jul 2015 17:20:02 GMT

Sub interfaces are available on all ASA models and Next Gen Models EXCEPT the ASA 5505.

Cisco ASA 5500 - Sub Interfaces and VLANS

Pete