How do I put a different mac address

[cmptrnerd]

on a cisco interface and are the commands different for a pix firewall.

Mark

Mark
cmptrnerd@core.com

 

[computerhighguy]

I am not aware that you can do that. Why would you want to change the MAC address anyway?

 

[gconnect]

Router 2621XM

XXXXX(config-if)#m?
mac-address  max-reserved-bandwidth  media-type  mop  mpls
mpoa         mtu

XXXXXXX(config-if)#mac-address ?
  H.H.H  MAC address

XXXXXXXX(config-if)#mac-address

XXXXXXXX(config-if)#mac-address 1234.1234.1234 ?
  <cr>

PIX 515E (i don't see a way to alter it on the PIX

XXXXXX(config)# interface ?
Usage:  interface <hardware_id> [<hw_speed> [shutdown]]
        [no] interface <hardware_id> <vlan_id> [logical|physical] [shutdown]
        interface <hardware_id> change-vlan <old_vlan_id> <new_vlan_id>
        show interface
XXXXXXXX(config)# interface

-gC-

 

[cmptrnerd]

The reason to change the mac address is to match the mac address with a linksys router that was on a cable modem the system will only work with that mac address. I know you can put a mac address on pix firewall. My teacher for the Pix class that I'm taking said he is doing it I just didn't want to wait until class on Wed to get the answer.

The teacher also stated that one of the reasons that he put a mac address on his pix firewall was to have the hackers think it was a netgear router that they were trying to hack into.

Mark
cmptrnerd@core.com

 

[computerhighguy]

You might be able to do it using the ARP command. I haven't and won't spend much time on this. You cannot change the MAC address of the ethernet card, but it looks like you m ight be able to mask it (at least as far as ARP goes). My PIX 520 has Intel cards in it, so unless you are really, REALLY good, you won't be able to tell its a cisco device. In fact, the NIC cards are the same that you could use for a personal computer.

Good luck. I don't understand why you don't just reconfigure the Linksys or replace it, but hey. that is your business. Just sounds a bit shady.


It is what it is!!
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A+, Net+, I-Net+, Certified Web Master, MCP, MCSA, MCSE, CCNA, CCDA, and few others (I got bored one day)