Hi sun manager folks,
thanks to Pedro Roque (roque@di.fc.ul.pt) for a swift reply,
original message _
> I am running a newly installed Sparcserver1000 with
> Solaris 2.3 - lightly patched. It runs as my Oracle server
> Over the last few days it has started putting messages of the form:-
> Aug 9 11:00:33 fis05 unix: IP: Hardware address '08:00:20:1c:05:0a' trying to be our address 034.002.040.150!
> Aug 9 14:41:44 fis05 unix: IP: Hardware address '08:00:20:1c:05:0a' trying to be our address 034.002.040.150!
> into the /var/adm/messages file, and splatted over the system console.
> the really confusing bit about this message is that this is the Hardware and IP address of this machine itself:-
> fis05# ifconfig -a
> lo0: flags=849<UP,LOOPBACK,RUNNING,MULTICAST> mtu 8232
> inet 127.0.0.1 netmask ff000000
> le0: flags=863<UP,BROADCAST,NOTRAILERS,RUNNING,MULTICAST> mtu 1500
> inet 34.2.40.150 netmask fffffc00 broadcast 34.2.43.255
> ether 8:0:20:1c:5:a
Pedro pointed out the ease of configuring hardware address if intruders are trying to spoof, bugs,
and 2 ethernets with the same address. ( a sun feature here is that two ethernets in the same box
will have the same mac address ).
solution appears to be more prosaic. the Coms guys rechecked the cabling, and, sure enough,
the cable into the inteligent routing/bridging HUB was loose. When given a fresh port the
error messages continued for another two hours, but then completely disappeared.
I have today applied the jumbo patch set from the maintenace CD volume 1 - hopefully fixing any
left over OS bugs.
ray
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