topic Re: change mac address in Operating System - HP-UX

change mac address

Maurizio_5 — Thu, 05 Jun 2003 15:45:44 GMT

Hi,
I've a rp5470 HPUX 11 server,
it has two nic, is it possible to change the NICs' mac address?

Regards,
Maurizio

Re: change mac address

John Meissner — Thu, 05 Jun 2003 15:47:50 GMT

yeah... just replace the nic with a new one :)

I don't belive it's possible.. it's hard coded into the nic I believe

Re: change mac address

Pete Randall — Thu, 05 Jun 2003 15:48:14 GMT

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x154735a43b46d71190080090279cd0f9,00.html
http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x10c1d08cc06fd511abcd0090277a778c,00.html

Pete

Re: change mac address

Maurizio_5 — Thu, 05 Jun 2003 15:56:22 GMT

I see that changing the sw mac address is possible, but which is the mac address used by the switch tha connect the server to the gateway?
If I change the mac addres does the switch correct and renew all the arp table?

Regards,
Maurizio

Re: change mac address

John Meissner — Thu, 05 Jun 2003 15:56:33 GMT

Pete - you've caused me to lean something new today... thank you. Sorry for my flawed answer Maurizio

Re: change mac address

Paul Sperry — Thu, 05 Jun 2003 15:58:10 GMT

in /etc/rc.config.d directory depending on the nic you are using the file will vary.
mine is hpetherconf. Any way look for the file containing
HP_ETHER_STATION_ADDRESS[0]
grep HP_ETHER_STATION_ADDRESS[0] *

edit it to be

HP_ETHER_STATION_ADDRESS[0]="whateever_mac_address"

and reboot.

be carefull you don't use a mac that is allready on your lan/wan

Re: change mac address

twang — Thu, 05 Jun 2003 15:59:01 GMT

go to /etc/rc.config.d, find your NIC's coresponding conf file,eg. /etc/rc.config.d/hpbase100conf, then change the following variable to desired value HP_BASE100_STATION_ADDRESS[0]=0x00306E031990

Re: change mac address

Pete Randall — Thu, 05 Jun 2003 15:59:29 GMT

Maurizio,

I don't know for certain but strongly believe that the switch will see the software mac address.

Pete

Re: change mac address

Bill Douglass — Thu, 05 Jun 2003 16:01:58 GMT

Your layer 2 devices will see the new mac address, as that is what will be listed in packets coming from the host after you make the change.

You may need to dump the ARP table on your switch and/or gateway, esp. if you have a firewall like a cisco PIX.

Why do you want to change the MAC address?

Re: change mac address

Maurizio_5 — Thu, 05 Jun 2003 16:12:48 GMT

Hi,
I've to create a port aggregation manualy without APA, so test the working nic each 30'' and if It doesn't work a script shout down it and start-up the second nic with the same IP.

Re: change mac address

Caesar_3 — Fri, 06 Jun 2003 17:57:22 GMT

Hello!

Yes it's posiable:
1. run /usr/sam/sbin/laninfo
(* if i wrong in the path try to search)
it will return you your NICs the last field is the type of the card (hpbase100, hpether, etc.)
remember the name.
2. cd /etc/rc.config.d
3. open file hpbase100 or hpether or other that is like the name that you get from the laninfo inside fill the parameters of your card and the wanted mac adress.

Caesar