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Beginner

Intersight HX Install - Summary Step: IP address: 169.254.1.20 at default port: 443 is reachable.

First post here on the community. I am install my first HX cluster with a Cisco Intersight and on the validation I am getting Summary - Summary Step: IP address: 169.254.1.20 at default port: 443 is reachable and Cluster Data IP Not Used: IP address: 169.254.1.20 at default port: 443 is reachable. any advice how to bypass this and so the install will continue and not fail?

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Cisco Employee

Re: Intersight HX Install - Summary Step: IP address: 169.254.1.20 at default port: 443 is reachable.

Hi and welcome to the community.

 

First, double check and make sure there are no other devices (outside of HX) that are on the storage VLAN that use link local IP addressing.

Second, I believe this can happen if you are re-installing a cluster that was previously configured, or if you've attempted the install of a new cluster multiple times and the installation has progressed passed a certain point before failing (where it has already assigned the IP addresses previously). We are working on some enhancements to the installation process to safe guard against this type of behavior, but they have not been rolled out yet in Intersight.

 

To resolve, I would try downloading the HyperFlex specific ESX install ISO (from the HyperFlex section of software.cisco.com) and re-install ESXi on your HyperFlex nodes. After you've re-installed the HX specific ESXI ISO on each node, try the installation again through Intersight.

 

When you run the installation again through Intersight, please go into your "Storage Configuration" policy for you HyperFlex Cluster profile and make sure to check the box for "Clean up Disk Partitions" as well.

 

Hope that helps.

Thanks,

Mike

Highlighted
Cisco Employee

Re: Intersight HX Install - Summary Step: IP address: 169.254.1.20 at default port: 443 is reachable.

Hi and welcome to the community.

 

First, double check and make sure there are no other devices (outside of HX) that are on the storage VLAN that use link local IP addressing.

Second, I believe this can happen if you are re-installing a cluster that was previously configured, or if you've attempted the install of a new cluster multiple times and the installation has progressed passed a certain point before failing (where it has already assigned the IP addresses previously). We are working on some enhancements to the installation process to safe guard against this type of behavior, but they have not been rolled out yet in Intersight.

 

To resolve, I would try downloading the HyperFlex specific ESX install ISO (from the HyperFlex section of software.cisco.com) and re-install ESXi on your HyperFlex nodes. After you've re-installed the HX specific ESXI ISO on each node, try the installation again through Intersight.

 

When you run the installation again through Intersight, please go into your "Storage Configuration" policy for you HyperFlex Cluster profile and make sure to check the box for "Clean up Disk Partitions" as well.

 

Hope that helps.

 

Highlighted
Beginner

Re: Intersight HX Install - Summary Step: IP address: 169.254.1.20 at default port: 443 is reachable.

I was also able to get the system deployed with the Hyperflex installer so I know there are not any issues.I received the error message and reinstalled with Cisco ESXi. I then installed with the Hyperlex installer and was able to get deployed. I then re-imaged with the Cisco ESXi and tried again with Intersight and got he error again.

 

Thanks

Highlighted
Cisco Employee

Re: Intersight HX Install - Summary Step: IP address: 169.254.1.20 at default port: 443 is reachable.

Hello. Is this a fresh install or have these nodes been previously installed into a cluster? I believe this error means there is an IP address conflict because it already in existance from a previous install attempt.  

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Beginner

Re: Intersight HX Install - Summary Step: IP address: 169.254.1.20 at default port: 443 is reachable.

This is a fresh install. I am able to deploy with the Hyperflex installer with no issues. I wiped the systems with the Cisco HX ESXi image and redeployed with intersight and I get the error.

Highlighted
Beginner

Re: Intersight HX Install - Summary Step: IP address: 169.254.1.20 at default port: 443 is reachable.

this is a response I got back from Cisco that fixed the problem. I did not fix it, but someone on my network team and Firewall team fixed the issue.

 

We’ve seen before where this is caused by one of the following:

  • Proxy ARP enabled on the router.
  • 169.254.1.0/24 being used as VPN tunnel endpoints on the upstream router.
  • A firewall / proxy intercepting port 443 traffic.
  • An actual Duplicate IP where another host has 169.254.1.20 configured.

 

We were able to work around it by blackholing the traffic by routing it to a null interface ‘ip route 169.254.1.0 255.255.255.0 Null 0’ (verify the routing table first). If you go this route you would want to exclude it from route redistribution if they are redistributing static routes.

Collaborator

Re: Intersight HX Install - Summary Step: IP address: 169.254.1.20 at default port: 443 is reachable.

This happened to me twice in one day for two different installs (same customer, different DCs)

Now, I'm not sure if it has any bearing on the situation, but in each case the Data VLAN was not completely local to the FIs and immediate upstream devices. In other words, there actually WERE other devices on the network.  I'm not too sure how the Intersight installer tests to see if there is a device on the VLAN (one would assume that an ARP request would be sent followed by a TCP SYN on port 443) but I suspect it is not quite what it should be.

So that is just my 2c

RedNectar
aka Chris Welsh


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