RE: IP Address Conflict

["Harman, Roger" <Roger.Harman@xxxxxxxxxx>]

Nope.


-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Jack Kingsley
Sent: Thursday, September 09, 2010 7:46 AM
To: Midrange Systems Technical Discussion
Subject: Re: IP Address Conflict

U using multiple lpar's on the same box possibly.

On Thu, Sep 9, 2010 at 10:36 AM, Harman, Roger <Roger.Harman@xxxxxxxxxx>wrote:

> This morning, after installing PTF's, on the last IPL (not starting to a
> restricted state) I had an IP address conflict that gave me a whale of a
> scare.  We've not changed anything but the system is reporting another MAC
> address using that same IP.  Only the last two digits are different.  D0 vs
> C0.  On the Ethernet line description, I find that my system is the D0.  Not
> a clue what the other is buit it is not one of our other two boxes.
>
> I've removed the offending interface on the 520 but I can still see the
> info from a PC command line via  arp -a 10.100.40.11 [the dupe ip address].
>  Interesting that it shows the address as being dynamic but our DHCP server
> has no lease issued.  We've always used the 10.100.40.xx static for the IBM
> boxes.
>
> Does the 520 (8203-E4A) have two distinct NIC's and/or MAC's?  I know there
> is a different interface for the LAN console but I can't find any evidence
> of another MAC address.
>
> Tracert does not show multiple hops that would help me find it or narrow
> the scope.
>
> Any other suggestions?
>
>
> Roger Harman
> I.T. Manager
> Knott's Berry Farm
> 8039 Beach Blvd.
> Buena Park, CA  90620
> v: 714-220-5359
> f: 714-220-5471
> Roger.Harman@xxxxxxxxxx<mailto:Roger.Harman@xxxxxxxxxx>
>
>
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