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Configure a mac-address on a cisco2503

Hi,

Short question. Configuring a mac-address on a Eth interface. Should the 'VendorCode' of the new mac-address be 'cisco' or can I define a mac-address without any qualification?

Thanks in advance

Ruedi

3 REPLIES
Cisco Employee

Re: Configure a mac-address on a cisco2503

There is no requirements other than it should be unique on the specific subnet it is connected to.

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
New Member

Re: Configure a mac-address on a cisco2503

Hi,

I have tried to configure some mac-address on int Eth0. Sometimes it's ok, sometimes not.(See below.)

Do you have any explanation?

Thanks Ruedi

Mac-Address config auf cisco2500 Router 11.1

Original mac-address is 0010.7b38.0484

mac-address ?

H.H.H MAC address

Router(config-if)#mac-address 0011.7b38.0484

Router(config-if)#mac-address 0100.7b38.0484

% Malformed hex mac address

Router(config-if)#mac-address 0022.1111.2222

Router(config-if)#mac-address 1000.1111.2222

Router(config-if)#mac-address 1100.1111.2222

% Malformed hex mac address

Router(config-if)#mac-address

% Incomplete command.

Router(config-if)#mac-address 1011.1111.2222

Router(config-if)#mac-address 5013.1111.2222

Router(config-if)#mac-address 5A13.1111.2222

Router(config-if)#mac-address 6b6a.ef01.ae23

% Malformed hex mac address

Router(config-if)#mac-address 5A13.1111.2222

Router(config-if)#mac-address 6b6a.1111.2222

% Malformed hex mac address

Router(config-if)#

Router(config-if)#

New Member

Re: Configure a mac-address on a cisco2503

Hello,

I have tried to configure the following mac-address:

0150.5ae8.69fd and 0150.5ae8.91fb : malformed hex mac address message occurs.

cisco2503 , ios 12.2(15)T9. Our customer need exactly this addresse.

Do you have any idea, what could be wrong?

Thanks Ruedi

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