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Re: IP Conflicts

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Andrew C Taubman

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Sep 3, 2008, 8:05:49 PM9/3/08
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What lan driver, date and version, in the server? Are you using VLANs at
all?

What speed/duplex settings on the server lan card and on the switch?
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Massimo Rosen

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Sep 2, 2008, 6:21:31 PM9/2/08
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Hi,

swhall wrote:
>
> I've viewed the boards for a solution to this problem, and have found
> very little help. I've tried a couple of idea's that were posted a
> while back to no avail. My server reports "TCPIP-5.22-78: This server
> and the system having hardware adrerss "xxxxxxx" have conflict for IP
> address "xx.x.x.xx".
>
> The hardware address is the address of the card that has the conflict.
> So it is in fact conflicting with itself.

It's 99.5% your switch.

CU,
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Massimo Rosen
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Massimo Rosen

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Sep 3, 2008, 3:01:51 AM9/3/08
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Hi,

swhall wrote:
>
> Alright, given that there is a new switch installed about 3 weeks ago,
> and the problem surfaced about 3 days ago. I'll replace the switch.
> The switch we just installed is a Netgear unmanaged JFS54. What switch
> have you, or others used that will not cause this conflict? Just any
> switch, other than the one we have?

It's not a general problem with a specific switch model. The switch may
be either simply broken, or there's a loop somewhere.

Massimo Rosen

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Sep 8, 2008, 4:49:25 AM9/8/08
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Hi,

bsarte wrote:
>
> I would normally buy the switch theory except I am having the same
> issue with 2 of my 15 NetWare servers and there are several NetWare
> servers

And you are sure in your case too the mac address it reports is the
actual MAC of the server itself?

If yes, it either *is* the switch, or a terribly broken NIC, or a duplex
mismatch.

Marcel Cox

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Sep 13, 2008, 3:46:30 PM9/13/08
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swhall wrote:

>Not using VLAN's. Driver is CE100B_E8s Version 1.67. Full Duplex,
>speed is 100. It's an unmanaged switch.......3rd new one on the system
>to make sure the switch is not the problem.

While if you can exclude the switch as source of the problem, then the
only possible candidate that remains is the network card of the server.
You might try to replace that one, or in case it is an on board NIC, try
adding a card and using the card instead of the onboard NIC.

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Marcel Cox

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Sep 15, 2008, 3:23:31 AM9/15/08
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swhall wrote:

>Not using VLAN's. Driver is CE100B_E8s Version 1.67. Full Duplex,
>speed is 100. It's an unmanaged switch.......3rd new one on the system
>to make sure the switch is not the problem.

BTW Note that it is not necesaarily the switch that the server is
connected to that may be the source of the problem. Any switch in your lan
could be the potential source of your problem. So I don't know if your
testing involved just connecting the server to the switch with no further
switch in your network being connected to that switch or if you just
changed the switch to which the server is connected but left the
configuration of other switches in your network.

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