sun 280's seeing own ip

[scinerd]

so this problem is a solaris problem and I posted it in other-unix-based forum. The problem I'm have is my sun 280's are seeing there own MAC's trying to take there ip. The error I get is:


Dec 22 14:13:37 box109 ip: [ID 903730 kern.warning] WARNING: IP: Hardware address
'00:01:02:03:04:05' trying to be our address 010.002.003.004!



The odd part is the mac is the machine that should has the IP. It's happening on all my 280's which I have about 12 of. The odd part is my ultra 5's with the same os and most same patch level don't see it. I thought maybe I have a route loop or crossed cable but I don't get why other machines wouldn't see it. The only other option I can think of is maybe there is a problem with the 280's driver but this is new and I have been running most of these boxes for a while. It's not a switch since there on different switches and I don't think it's my core router because my linux boxes should be seeing it to. The problem comes and goes sometimes it will happens all day then stops for a week or a few hours. I also check if one user had been loging in and running something but a few of the boxes only root is allowed. Any ideas would be welcome.

[bandwidth_pig]

Is the router performing DHCP for you or do you have a server doing this somehwere in your network?

[scinerd]

We do have dhcp in the building but these machines have static ip's. I should also say these machines are on between 1 and 5 differenet networks. The networks are all seperated by routers and are different Ip so it's not like it's seeing it's self on the other network.

[bandwidth_pig]

How are you statically assigning IPs?

[scinerd]

standard way the ip's are in /etc/hosts. Then I have hostname.<interface> for each interface.

[stiles]

That is wierd. I did a quick google search n found (http://enug.2017networks.net/pipermail/enug/2002-July.txt) one admin that in his opinion his switch was generating an excess numbers of APR queries to the host and having the exact symptoms as you. It's at the end of the page. Good luck, that's a wierd one no doubt.

Here is another person (http://www.sunmanagers.org/pipermail/sunmanagers/2002-April/012306.html) with a 280 doing the same thing.

[stiles]

I wonder if the 280's have the same problem as the old sun multiport nics, one MAC address for all the ports. I would doubt it but it can't hurt to check.

[scinerd]

ya that's a "feature". I set local-mac-address? to true and reboot two of the boxes. It then comes up with different macs for each interface but that didn't help. If it was the solution it wouldn't explain why the single interface machines see it. I also set the interfaces I wasn't using to ip's so they wheren't 0.0.0.0 just to see if that was causing a problem but it wasn't. I'm going to explore the switch arp thing today.