WARNING:IP: Hardware address '02:bf:0a:d0:00:2a' trying to be our address

Hi,
When my system boots up the following error message is prompted:
WARNING:IP: Hardware address '02:bf:0a:d0:00:2a' trying to be our address
I perused documentation and it states that this occurrs when the ATM lane device is set to promiscuous mode by running snoop -d lane0. The corrective action to be taken should be to not ket the ATM lane device rin in promiscuous mode & not to ignore the warning.
What I want to know is how to implement the resolution?
Thanks!

Ok, my mistake.
So that PC is also trying to use 192.168.0.1.
And it must be doing arp broadcasts on the LAN.
Solaris should probably be ignoring them since it has an 10.x.x.x address on the lan. So it shouldnt care about 192.168.0.x addresses on the LAN.
Only on the crossover network.
But apparently it cares anyway.
So I suggest you change the cluster heartbeat addresses to something else thats less likely to be chosen by random computers on your lan.
Or figure out why the PC is trying to use 192.168.0.1. It could be someone running vmware or virtual box.
Or vlan you lan, so your critical servers arent sharing a network with random poorly configured PC's.

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WARNING: IP: Hardware address '08:00:20:c4:1f:e8' trying to be our address

""ERROR""
WARNING: IP: Hardware address '08:00:20:c4:1f:e8' trying to be our address 192.168.001.001
I have 2nodes of Sun solaris9 and both are configured in Veritas Cluster. The cluster nodes have 2 heartbeats connected cross.
The cross cables are connected with the below IP's
LAN1 of node1 192.168.2.1
LAN2 of node1 192.168.2.2
LAN1 of node2 192.168.1.1
LAN2 of node2 192.168.1.2
All the above LAN are connected with cross but still there is ip conflict message in the dmesg. The error is mention above

Ok, my mistake.
So that PC is also trying to use 192.168.0.1.
And it must be doing arp broadcasts on the LAN.
Solaris should probably be ignoring them since it has an 10.x.x.x address on the lan. So it shouldnt care about 192.168.0.x addresses on the LAN.
Only on the crossover network.
But apparently it cares anyway.
So I suggest you change the cluster heartbeat addresses to something else thats less likely to be chosen by random computers on your lan.
Or figure out why the PC is trying to use 192.168.0.1. It could be someone running vmware or virtual box.
Or vlan you lan, so your critical servers arent sharing a network with random poorly configured PC's.

Sun Trunking 1.& kern Warning Hardware address trying to be our IP addresse

Using Sun Trunking 1.3 on a solaris 10 11/06 V490 server.
setenv local-mac-address? is set to true
Obviously server Aggregate MAC address corresponds to first NIC local MAC address. Second NIC has its specific MAC address.
Aggregate seams OK (traffic continues undisrupted when unplugging a card)
but :
1) Should I worry kernel is logging from toime to time messages such as :
WARNING: IP: Hardware address '00:14:4f:3b:60:f4' trying to be our address IP_address !
2) There is no load balancing between the 2 NIC interfaces as reported by nettr -stats 0 interval=2
Traffic always flows using NIC 2.
Appreciated,
Lor.

That depends on the switch.
SunTrunking 1.3 is compatible with Cisco EtherChannel for example. I believe there's a manual configuration on the switch to say that these two ports are participating in an etherchannel linkage. SunTrunking is an 802.11ad protocol. If they haven't done that, then the switch is just assuming the two ports are normal and have separate hosts behind them.
If instead of SunTrunking you were using Solaris 10 Link Aggregation, then you'd ask the networking guys to turn on LACP, which sets up a communication so the devices can describe their trunk/network setup. SunTrunking doesn't let you do that.
What interfaces do you have on the Solaris box?
Darren

Hardware address trying to be our address

We get this kern.warning approximately every 3/4 of an hour.
WARNING: IP: Hardware address '08:00:20:c4:1f:e8' trying to be our address 192.168.001.001
I found a description on sunsolve. What confuses me with this is the fact, that not only 192.168.001.001 is our address but 08:00:20:c4:1f:e8 is our hardware address too.
Has anyone made some experiences with this?
Thanks in advance
Frank

If you are trying to use SunTrunking or link aggregation, yes, the switch or network device must be configured to support it as well.
Otherwise one link sends a packet, the switch doesn't realize the links are to the same logical interface and returns the packet on the other link. The host sees the return packet and complains about an IP conflict.
For SunTrunking you probabaly have to configure etherchannel (or the equivalent) manually. For link aggregation you probably want to configure LACP to get the link correct.
Darren

Hardware Address error/warning

anyone ever see this during a setup?
WARNING: Hardware address cc:cc:cc:dd:dd:dd trying to be our address 192.168.10.10
I'm setting up a T2000 and going through newtwork setup, but on boot up I get that error/warning.
any thoughts?

That's a network configuration issue.
A generic IP address conflict.
As it states, there's another computer on your subnet that's already using that IP.
A Google search with "hardware address trying to be " keywords gets you 4,180,000+ results on this issue.
Pick a different IP for your new system,
or find that other system and have it use a different IP.

Which is the right hardware address?

If I look at Prefs->Built-in Ethernet -> Ethernet, the panel quotes an 'ethernet ID'. System Profiler -> Network gives a MAC address. Both of these look like plausible hardware addresses(6 pairs of letters and digits with colons between), but they're different. Does anyone know which is the right one to quote to register on a (BootP) network? And, just out of interest (unless there's something weird about my Macbook) what the other one refers to?
I need to get this registered to our university network but (surprise surprise) the IT people don't support Apples so they're no use.....
Thanks

Ethernet is the category name for both the Airport and "Built-in Ethernet" devices under which the MAC addresses are listed. If you click on Network in the System Profiler left-hand panel, you should see a list of active services. This is a list of all possible network connections. One of these should be "Built-in Ethernet", and is also referred to as "en0" (Airport is "en1"). When you select "Built-in ethernet", its properties and settings appear in the pane below. This MAC address should, of course, be the same as the one in the Network preference pane.
bd

Primary network port (en0) is not reporting its hardware address properly

We have always had no problems with watching instant movies on Netflix until today for some reason, called Netflix and they said to contact Apple. We tried to reinstall the player and everything but they found out the "primary network port (en0) is not reporting its hardware address properly", not sure what that means. Since my phone support is expired they won't help me on the phone, so I'm hoping someone might have a solution for me here. Thank you.
Here's what the netflix tech support email said:
During the course of troubleshooting your experience watching instantly from Netflix on your Apple computer we discovered that your primary network port (en0) is not reporting its hardware address properly. The Microsoft Silverlight player that Netflix utilizes for watching instantly requires the correct hardware address of this network port to play back digitally protected content. The primary network port is typically the Ethernet port on the computer (with the exception being the Macbook Air) and reasons for playback failure can include hardware failure of the port itself or incorrect software configuration.
Please contact Apple for assistance with properly configuring the network interface(s) on your Apple computer at http://www.apple.com/support/expert or contact your local Apple Store for an appointment.
Thank you for choosing Netflix,

I have the same issue on a MacMini with a defunct Ethernet port. The primary port is en0 however it's an Apple a/b/g Airport card and apparently that combination isn't seen as valid by silverlight.

Bluetooth "unknown" hardware address showing up as Network Sharing address

On a brand new out-of-the-box iMac (27-inch, Mid 2011) OS 10.7.3, the Bluetooth "unknownxxxxxxxxxxxx" hardware address showing up in Network Sharing preferences as shared name under File Sharing, Remote Login and Remote Management. the first portion is the same as the Bluetooth hardware address for the Apple Wireless Keyboard and Apple Magic Mouse that came with and is connected to this computer. I have an existing Magic Trackpad connected that has a completely different hardware address.
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On each of your machines, use
Applications -> Utilities -> Network Utility -> Info
and cycle through all the *Network Interfaces* checking the *Hardware Address*, which will be of the form nn:nn:nn:nn:nn:nn
and see if it matches 00:0d:93:b0:ef:be.
You will have to click on the *Network Interfaces* pop-up menu to select alternate interfaces to check their MAC addresses.
Alternately, you can look in
System Preferences -> Network
Select each interface, and click Advanced and look at the Ethernet tab. Repeat for each interface. Actually a lot more clicking.
Or from Applications -> Utilities -> Terminal use the ifconfig command. It will list all your network interfaces at once. You then have to dig through the output to find the MAC addresses.
ifconfig
or
ifconfig | grep ether
If you have VMware or Parallels installed it will create a virtual ethernet interface.
And of course you have an ethernet MAC address as well as an Airport MAC address.
However, if you have in intruder, change your WAP2 password. That would knock the intruder off the LAN for a little while. If you did that and the address stayed, you could fairly sure that it was one of your systems as only you could get the new WAP2 password to your systems so quickly.
NOTE: It is not easy to crack WAP2. They would have to do some serious computing and or be very lucky guessing to crack it quickly.

DHCP manual bindings/reservations don't work when using hardware-address

We have used manual bindings in a limited fashion and can assign them fine if we use the "client-identifier" as the matching criteria; The problem is we need to expand our usage of them but don't want to depend on the client machines having a properly filled in "dhcp client-id" field. The problem is we cannot get manual bindings to assign using simply the hardware-address / MAC address.
Here is the config we are using:
ip dhcp pool res_test
host 10.2.17.80 255.255.255.0
hardware-address 5c96.9d74.efa7
default-router 10.2.17.1
dns-server 10.2.17.14 10.2.17.113
domain-name ardemgaz.com
netbios-name-server 10.2.17.14 10.2.17.113
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show ip dhcp binding
10.2.17.80 5c96.9d74.efa7 Infinite Manual
10.2.17.193 015c.969d.74ef.a7 Dec 04 2014 08:40 PM Automatic
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ip dhcp pool res_test
host 10.2.17.80 255.255.255.0
hardware-address 015c.969d.74ef.a7
default-router 10.2.17.1
dns-server 10.2.17.14 10.2.17.113
domain-name ardemgaz.com
netbios-name-server 10.2.17.14 10.2.17.113
But then you get the following, after clearing the binding and renewing the lease from the client:
show ip dhcp binding
10.2.17.80 015c.969d.74ef.a7 Infinite Manual
10.2.17.193 015c.969d.74ef.a7 Dec 04 2014 08:50 PM Automatic
Which makes no sense to me. Is it even possible to specify the MAC address to receive a manual binding? This is using the following version:
show ver
Cisco Internetwork Operating System Software
IOS (tm) MSFC Software (C6MSFC-JSV-M), Version 12.1(27b)E1, RELEASE SOFTWARE (fc2)

The IOS DHCP server is going to use the client identifier if one is present and will only fall back on the MAC address if one isn't present. I've been working with these devices for years and still haven't found a way to create a universal reservation that will work for both client identifiers and MAC addresses. At this point, I usually fall back to a server-based DHCP solution that has this flexibility and configure a DHCP relay on the switch.

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how to change the hardware address (MAC) of my printer to match my mac

Hello @giomarcondes ,
Welcome to the HP Support Forums!
I understand that you wish to alter the MAC address on your HP Deskjet Ink Advantage 3525 e-All-in-One Printer to match the MAC address of your Mac OS X computer. Unfortunately, what you're requesting is not supported. Just to clarify, "a media access control address (MAC address) is a unique identifier assigned to network interfaces for communications on the physical network segment". They are programmed into the device and are not designed to be changed. (Source: MAC address)
Are you experiencing issues configuring your HP Deskjet on your wireless network to communicate with your Mac computer?
If you do actually require support configuring the wifi connection on your printer I would be more than happy to assist you with this. I look forward to hearing from you!
X-23
I work on behalf of HP
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I read several docs about the dhcp manual bindings. Im not even tried yet but can somebody tell me which is right(hardware-address or client-indentifier) for Cisco IP Phones?.
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WARNING:IP: Hardware address '02:bf:0a:d0:00:2a' trying to be our address

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