Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

catalyst 2900 destination MAC change

hello,

I'm facing some problem in my, very specific, network. All the machines are connected to a Catalyst 2900 and they all have the same IPs and MAC addresses. Is there a way to change a destination MAC address on the switch? Or, somehow, forward traffic via a specific swith port basing on some information in data?

regards,

Artur Stepniak

Everyone's tags (3)
1 REPLY
Cisco Employee

Re: catalyst 2900 destination MAC change

Hello,

Unfortunately, the switch cannot get into the packet and inspect the

contents. So, you need to find a different way to achieve what you are

looking for.

When you say all devices have same IP and same MAC, are you referring to a

load balancing environment? If it is a load balancing environment, you can

manually configure the switch to register the MAC address on all ports and

then switch will forward a copy of the packet to every port. Each server can

decide if it wants to process the data and reply. Here is a document on

Microsoft NLB for Cisco Switches.

http://www.cisco.com/en/US/products/hw/switches/ps708/products_configuration

_example09186a0080a07203.shtml

Hope this helps.

Regards,

NT

277
Views
0
Helpful
1
Replies