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NLB ping problem between 2 NLB servers

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5 replies

by kenderkn

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hi all,
running 2 servers W2k3 web edt. on a NLB cluster.

Cluster has been perfomring well till recently.

on Server1 i cant ping Server2's assigned IP address. I can ping all the other bound IP addresses (for multiple websites) but not the one assinged

on Server2 is the same situation.

Is this normal for NLB or is this anomolous? I have recently inheireted this network and NLB is farly new to me. Did a Google for the problem with not thta much help.

thank for the help!!

5 replies

by rindi1

This sounds like some kind of firewall setting which doesn't allow pings. This could have been set by a security update from M$. These settings should be available via local area connection properties. Check the settings for port 8, which is normally used for "Ping".

Also if the system itself still functions, I'd leave it as it is, since if you can't ping it, it is more secure against manipulation from outside.

by shmaltz

Yes it normal for NLB to behave this way. A side effect of NLB is that the cluster members CANNOT communicate with each other. Test it from another machine.

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