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andyortlieb
Asked: 2011-11-04 11:11:27 +0800 CST

Network issue migrating an VMWare guest to an OpenVZ container

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I've migrated a server from vmware to openvz, both are running on the same physical host (I plan to eliminate vmware). If I give the new openvz container a new IP anybody on the LAN and outside network can get to it with no problem, but as soon as I change its IP address to the original IP (that the vmware guest used to have), only the host server and its contained virtual machines can get to it.

I have made sure to change the IP on the old virtual machine.

linux vmware-server networking openvz

2 Answers

  1. Best Answer

    Adding the hint as an answer:

    You might be running into an ARP caching issue - have you verified the ARP cache contents of the hosts which are unable to connect?

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  2. My openvz host still had a static route to the VM I migrated from openvz to KVM.

    A route del -host <ip_addr> fixed the issue for me.

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