Wido den Hollander created CLOUDSTACK-9406:
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Summary: Enable IPv6 Link-Local in cloud0 interface in System VMs
Key: CLOUDSTACK-9406
URL: https://issues.apache.org/jira/browse/CLOUDSTACK-9406
Project: CloudStack
Issue Type: Improvement
Security Level: Public (Anyone can view this level - this is the default.)
Components: KVM, SystemVM
Reporter: Wido den Hollander
Currently a 169.254.0.0/16 address is used for communication between the (KVM)
hypervisor and a System VM.
The address is provided through a socket to the SSVM on startup.
This adds additional complexity since such an address needs to be recorded in
the database.
IPv6 provides the Link-Local address starting with fe80:: where it is
calculated based on the MAC-address.
This address could be used to communicate with the SSVM without any prior
communication with it. The Hypervisor knows the MAC address of the SSVM and
thus it knows which address the SSVM will obtain.
On this address a provisioning daemon could run instead of the current 'patch
via socket' scripts.
Over this address the SSVM could even expose a complete REST-full API which can
be used to talk to the SSVM.
Using the IPv6 link-local address would be the first step to IPv6 in the SSVM.
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