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Windows 2008 Nlb Cannot Ping


Create a wiki article about it! Cause: One of the cluster hosts is configured with a host priority identifier equal to 1. Most routers do not respond to ARP Requests with Unicast Sender IP and Multicast Sender MAC (Multicast Cluster MAC). Thanks in advance for you assistance. http://macinstruct.net/cannot-ping/windows-2008-vpn-cannot-ping-server.html

That way, the NIC used for that communication keeps their separate MAC addresses. SERVER NAME IP ADDRESS TYPE PL2008-01.pintolake.net Server 1 PL2008-02.pintolake.net Server 2 PL2008-V.pintolake.net Virtual cluster name and IP address of Servers 1/2 In this example both servers only However, by combining the resources of two or more computers running one of the products in Windows Server 2008 into a single virtual cluster, NLB can deliver the reliability and performance After the cluster hosts start, they begin converging, but they never complete convergence.

Cannot Ping Nlb Cluster Ip From Different Subnet

NLB remote control commands will not work correctly if they are sent from a computer that has IPSec configured so that the remote control traffic is encrypted by IPSec. Edited by Yagmoth555MVP, Moderator Saturday, April 19, 2014 2:13 AM Proposed as answer by Alex LvModerator Monday, April 21, 2014 1:43 AM Marked as answer by Alex LvModerator Thursday, May 08, Essentially the answers to the above questions resulted in answers which indicated that all had been configured correctly so I started to look at other reasons for this problem.

If you do not want to use multicast support, you can interconnect the cluster hosts with a hub or coaxial cable instead of with a switch. Installing the NLB feature To use Network Load Balancing (NLB), a computer must have only TCP/IP on the adapter on which NLB is installed. Have a good day. 0 Message Author Comment by:Cymbaline652013-01-28 Comment Utility Permalink(# a38826247) Thanks, PaciB. Kb960916 Join our community for more solutions or to ask questions.

You can follow any responses to this entry through the RSS 2.0 feed. Nlb Host Unreachable One such friend is a chap called Josh Andrews. This was, of course very frustrating - everything seemed to be working correctly, however you could not use RDP or Ping the cluster interface outside the cluster nodes. If we wanted to configure this from PL2008-02 then we would need to connect to the PL2008-V cluster first then add the host to the cluster.

Clear the ARP cache on the NLB node as in step 1. Nlb Cluster Ip Not Reachable Cluste is configured in unicast mode with 2 NIC. Cause: A break in a redundant switch caused the cluster to separate into two clusters, creating two default hosts. If the convergence does not complete, see the following issue later in this Troubleshooting topic:After the cluster hosts start, they begin converging, but they never complete convergence You cannot view or

Nlb Host Unreachable

Solution: Ensure that all hosts are configured with the same cluster operation mode. Regards, Philippe Don't forget to mark as answer or vote as helpful to help identify good information. ( linkedin endorsement never hurt too :o) ) Answer an interesting question ? Cannot Ping Nlb Cluster Ip From Different Subnet It looks like it's still pointing to arp. 0 LVL 16 Overall: Level 16 Windows Server 2008 7 MS Legacy OS 2 Message Expert Comment by:PaciB2013-01-28 Comment Utility Permalink(# a38826576) Nlb Unicast Vs Multicast When attempting to use Network Load Balancing Manager to connect to a host in your cluster, you receive the error "Host unreachable." Cause: Internet control message protocol (ICMP) to the host

SSH / Telnet Software Networking Manage Active Directory Integration for ESXi Hosts Video by: Brian Teach the user how to join ESXi hosts to Active Directory domains Open vSphere Client: Join his comment is here Josh was now able to proceed with configuring his NLB Windows 2008 Terminal Servers. HTTP) & other for Heartbeat. JPPinto.com - Tech Blog Seasoned IT Dude - MCSE, MCSA, MCTS: SharePoint 2010, MCP Home Tech Series About JPPinto Categories Recent Posts Update Enom Domain Name via PowerShell (Dynamic DNS Cannot Ping Cluster Ip Address

Do not add any other protocols (for example, IPX) to this adapter. When using Telnet or attempting to browse a computer outside the cluster from a cluster host, there is no response. Thanks! 8 years ago Reply tachnem I'm glad this was posted, I've been trying to track down this issue for a while now. this contact form Solution: Use the ping command to test connectivity.

so based on this article: http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1556 I have to put it into the same ESXi host to make sure the NLB converged. Nlb Host Status Converging Each VM has a single NIC.We are finding that after a few short minutes of inactivity, the NLB's IP address will timeout until the NIC on either VM is disabled/enabled, and Also need to identify correct terminology (put in a glossary) and stick to it - using "NLB", "Management", "Heartbeat" and other terms to describe NICs is just confusing. "Best Practice" says

Solution: Verify that you can use ping to access the cluster from a client on the cluster's subnet and to access the cluster hosts' dedicated IP addresses from a computer outside

Login. Ping each server locally and remotely Ping the virtual IP locally and remotely – you should do this three times from each location. please reply Leave a comment Name (required) Mail (required) Website Spam protection: Sum of 3 + 7 ? Network Load Balancing Windows 2008 R2 However, specifying the host by its priority (ID) works.

Re: Microsoft Server 2012 NLB (multicast) times out after several minutes motenoob12 May 12, 2015 12:56 PM (in response to MKguy) MKguy wrote: Machines on the same subnet are also This will inhibit convergence. Was the port range for the Clustered IP address of the NLB configured to allow RDP and ICMP? http://macinstruct.net/cannot-ping/windows-2008-cannot-ping-router.html After 20 minutes of floundering on Google I decided to rest my head on the keyboard, sob a little and contemplate defeat.

Join & Write a Comment Already a member? Use numbers that are greater than 1. Can you ping them if you add a static ARP entry on these systems? This identifier is used to identify the node in the cluster.

With both being set to use multicast, I am not sure why the results show a multicast IP on 2012 but not on 2008? Based on your recommendation, I compared line for line the configuration of the 2012 NLB vs our working 2008 NLBs. Traffic alternates unexpectedly between the cluster hosts, and it breaks TCP connections.