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Cannot Ping Nlb Cluster 2008


Solution: Commands must be sent to the cluster's primary IP address, which was assigned in the Network Load Balancing Properties dialog box. Thanks for helping make community forums a great place.

Proposed as answer by Alex LvModerator Thursday, May 08, 2014 9:32 AM Thursday, April 17, 2014 2:02 AM Reply | Quote Thanks cluster IP Reply hydn 66 Posts Re: Issue: NLB can't ping cluster IP from outside cluster. Please feel free to let us know if you need further assistance. have a peek here

Hope that helps... This documentation is archived and is not being maintained. Both those servers can also ping the cluster IP. After the cluster hosts start, they begin converging, but they never complete convergence.

Cannot Ping Nlb Cluster Ip From Different Subnet

Microsoft Customer Support Microsoft Community Forums United States (English) Sign in Home Windows Server 2012 R2 Windows Server 2008 R2 Library Forums We’re sorry. We did try changing it to IGMP Multicast on 2012 but experienced the same symptoms ultimately. Cause: A break in a redundant switch caused the cluster to separate into two clusters, creating two default hosts.

Cluster ip: After created NLB with Unicast, I can ping the cluster ip from these 2 servers, but when I enter the cluster ip in browser, got http 404 not Would we find alien music meaningful? You are unable to create a Network Load Balancing cluster in a 64-bit version environment. Kb960916 First Name Please enter a first name Last Name Please enter a last name Email We will never share this with anyone.

Solution: Configure your proxy server to use multiple IP addresses. Nlb Host Unreachable This choice instructs the cluster members to respond to ARPs for their virtual address using a multicast MAC address for example 0300.5e11.1111 and to send IGMP Membership Report packets. Manage Your Profile | Site Feedback Site Feedback x Tell us about your experience... An unusual number of TCP connections to the cluster's IP address are being reset by the server or the client.

These topics assume that your system and applications meet the minimum requirements for NLB. Nlb Cluster Ip Not Reachable The OK or FAIL column Visiting Singapore for attending Conference. You’ll be auto redirected in 1 second. Solution: Make sure that your router has proxy ARP support turned on.

Nlb Host Unreachable

Cause: Your switch is configured to reject broadcast packets. Community Additions ADD Show: Inherited Protected Print Export (0) Print Export (0) Share IN THIS ARTICLE Is this page helpful? Cannot Ping Nlb Cluster Ip From Different Subnet 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 ? Nlb Unicast Vs Multicast In this way, when a client ARPs for the cluster’s virtual IP address, the cluster responds with multicast MAC for example 0300.5e11.1111.

Cause: The cluster hosts have become members of different subnets, so all the hosts are not accessible on the same network. navigate here Thanks for helping make community forums a great place. Why are LEDs in my home unaffected by voltage drop? For more information, see: Overview of Network Load Balancing and Installing Network Load Balancing. Cannot Ping Cluster Ip Address

There is no reply when you use the dedicated IP address of a host to specify it as a target for a remote control command. Solution: Allow ICMP traffic through the router or firewall. Reply Zhao Ji Ma -... 762 Posts Re: Issue: NLB can't ping cluster IP from outside cluster. Check This Out Solution: Log on as a user who is in the local Administrators group of the computer that is running NLB.

Nothing yet.... Cluster Operation Mode For more information, see Network Load Balancing Manager Properties. Solution: Configure your proxy server to use multiple IP addresses.

This ensures that the network trace to be captured in the next steps will show ARP communication.

Start a Network Monitor network capture on the NLB node. Now you are able to connect to Windows Server 2008 NLB Virtual IP Address from hosts in different subnets when NLB is in Unicast Mode 47 years ago Reply Savio F This setup will prevent the external physical switches from interfering.- Rebuild the NLB from scratch with the same config as the 2008 one (multicast, no IGMP, same affinity)- From the test Windows Nlb Across Subnets Cause: The network traffic is coming from a limited number of IP addresses, possibly due to the setting on a proxy server.

http://social.technet.microsoft.com/Forums/en-US/winserverPN/thread/373eb373-56ba-4d0c-9e32-4b67a8a1e894/?ffpr=0 Any suggestion? Cause: If your cluster is configured for unicast mode, a switch might have learned the NLB network adapter's MAC address. Solution: Use NLB Manager to ensure that all hosts are configured with the same cluster operation mode. http://sauvblog.com/cannot-ping/cannot-ping-client-from-server-2008.html Command to add static ARP entry Arp –s Note: Microsoft is aware of this issue and we will keep you posted regarding its status.

Connectivity to the cluster is denied to some users, but not all. Network Load Balancing is not load balancing applications, and the default host handles all network traffic. I'm going to talk about troubleshooting approaches in another blog post. For more information, see the sections titled Cluster parameters, Host parameters, and Port rules in Network Load Balancing Manager Properties.

When invoking the Network Load Balancing remote control commands from a computer outside the cluster, there is no response from one or more cluster hosts. Virtual Private Network (VPN) calls fail when you make a change that causes convergence (such as adding a host, removing a host, or draining a host). You can find more information about this problem at the following link: http://www.cisco.com/en/US/products/hw/switches/ps708/products_configuration_example09186a0080a07203.shtml (Taken from the above link) Multicast Mode Another solution is to use multicast mode Mixing Windows Server 2003 and Windows Server 2008 in the same cluster is not supported for long periods of time.

Connect with top rated Experts 24 Experts available now in Live! However, specifying the host by its priority (ID) works. Product catalog Where does \thepage kick in? Cause: A layer-three switch is being used.

Solution: Open the Network Load Balancing Properties dialog box on each cluster host and verify that all hosts have identical port rules. Promoted by Experts Exchange Engage with tech pros in our community with native advertising, as a Vendor Expert, and more. Since these are all IIS websites, there are two port rules (for port 80 and 443). Suggested Solutions Title # Comments Views Activity How to have a separate survey result in SharePoint 2013? 1 63 70d User with a laptop that has a home version of Windows

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 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 Like Show 0 Likes (0) Actions Go to original post Actions Remove from profile Feature on your profile More Like This Retrieving data ... So other systems in the same VLAN/subnet can't resolve the NLB-vIP's MAC via ARP either?

When you are using Network Load Balancing with Microsoft Internet Security and Acceleration (ISA) Server, one cluster host logs blocked packets that are directed to the dedicated Internet Protocol (IP) address Cause: One host is unable to send or receive heartbeats. Solution: Disable HTTP keep-alive values. Be aware that this may expose your system to additional security risk.