missing "mac-address" command

[Abdullah Net]

Hello there,

I wanted to change the mac address of a specific interface in my 2960 switch. According to many websites i've been to, this can be easily done by using the "mac-address" command under any interface. But, that command does not exist in my switch even though i have the newest IOS (version 15). I even tried it on my 3560G switch but with no luck.

********************************

L2-Switch(config)#int fa 0/8

L2-Switch(config-if)#mac?

mac  macro

********************************

What could be the reason?

Abdul,

[mmacdonald70]

This isn't supported on fixed configuration switches:

http://www.cisco.com/en/US/products/hw/switches/ps700/products_tech_note09186a00801c9b4e.shtml#l2_mac

[Abdullah Net]

What is a fixed configuration switch?

[mmacdonald70]

I modular switch allows you to add cards (6500, 4500, 6800), a fixed configuration switch doesn't (2960, 3560, 4948). 

http://www.cisco.com/en/US/products/hw/switches/products_category_buyers_guide.html#fx_sw

[Abdullah Net]

hmm then why cisco 2960 switch in GNS3 and packet tracer has the ability to change the mac address?

[Abdullah Net]

mmacdonald70,

According to the website you have provided me,

"
2950(config)#interface fa0/2
2950(config-if)#mac-address 0007.0007.0002
2950(config-if)#interface vlan 2
2950(config-if)#mac-address 0007.0007.0022
"

I believe 2950 is a fixed configuration switch and it has the ability to change the mac address of its interfaces. It doesn't make sense to me.

Abdul,