Question

Isolated Network

Asked by: lnrivera

Hi,

I have a managed switch linksys SRW2024, and I have 10 computers connected to this switch in the same subnet and I want that all computers can only see the IP Gateway, (Not the computers each other).

Then all the computers see the Gateway but not see the rest of computers in the same LAN and in the same subnet (Using the managed switch)

I understand that i need to use ACL, any suggestion or example?

Thanks

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Asked On
2009-08-29 at 07:02:19ID24691941
Tags

ACL ISOLATED LINKSYS SRW2024

Topics

Network Switches & Hubs

,

Miscellaneous Networking

,

Network Design & Methodology

Participating Experts
3
Points
500
Comments
9

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Answers

 

by: donjohnstonPosted on 2009-08-29 at 08:27:22ID: 25214335

 

by: NothingSiriusPosted on 2009-08-29 at 08:40:36ID: 25214363

How about a seperate VLAN for each computer?

 

by: donjohnstonPosted on 2009-08-29 at 08:45:09ID: 25214375

But then you'll need a layer 3 device with an interface for each VLAN. It would work, but not a very efficient IP addressing scheme.  

 

by: NothingSiriusPosted on 2009-08-29 at 11:07:22ID: 25214786

<shrugs> Not very efficient, but with 256 available VLANs and only 10 computers...

 

by: NothingSiriusPosted on 2009-08-29 at 11:22:21ID: 25214837

Ok, confusion is mine. We can't define 10 VLANs, assign them to seperate ports,  and then simply attach one computer to each port? The switch supports trunking .. so we'd define the default gateway in the trunk. Am I being too simplistic?

 

by: lnriveraPosted on 2009-08-29 at 11:54:59ID: 25214933

I can't use VLAN

 

by: lnriveraPosted on 2009-08-29 at 12:05:14ID: 25214970

I want to use The IP Based ACL (Access Control List) , and bound to a port

Anybody can give me a example?

Thanks

 

by: donjohnstonPosted on 2009-08-29 at 13:52:08ID: 25215314

This platform uses a GUI interface for ACL configurations. I don't know how to give you an example using the graphical interface.

But like I stated previously, page 34 is where you'll find the instructions.

http://www.cisco.com/en/US/docs/switches/lan/csbms/srw2048/administration/guide/SRW-US_v10_UG_A-Web.pdf

 

by: LucFPosted on 2009-08-31 at 10:14:20ID: 25224499

Hi lnrivera,

The SRW2024 has Private VLAN Edge (PVE) functionality which is meant for this kind of configurations.

Check the userguide mentioned by donjohnston at page 25:
"PVE When a port is a Private VLAN Edge (PVE) port, it bypasses the Forwarding Database and forwards all unicast, multicast, and broadcast traffic to an uplink."

Regards,

LucF

20120131-EE-VQP-002

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