tampler opened a new issue #5235:
URL: https://github.com/apache/cloudstack/issues/5235
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##### ISSUE TYPE
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* Documentation Request
##### COMPONENT NAME
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Zone Configuration
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##### CLOUDSTACK VERSION
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branch.
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4.15.1
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##### CONFIGURATION
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Information about the configuration if relevant, e.g. basic network,
advanced networking, etc. N/A otherwise
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##### OS / ENVIRONMENT
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Ubuntu 20.04.2
MySql 8.0.25
cmk 6.1.0
##### SUMMARY
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I've created a zone with only one spare external IP for both Management and
Guest networks.
When I launch a zone, SystemVM won't start with the following error:
```
2021-07-22 13:16:36,962 INFO [c.c.v.VirtualMachineManagerImpl]
(Work-Job-Executor-28:ctx-0fb05ec3 job-6/job-4039 ctx-44ce61e9)
(logid:0d978522) Insufficient capacity
com.cloud.exception.InsufficientAddressCapacityException: Insufficient
address capacityScope=interface com.cloud.dc.Pod; id=1
```
Questions:
1. What's the MINIMUM IP range I need to have for both Management and Guest
networks?
2. Can I use VPN range for the Guest network
This is related to #5234
I need to buy a Public IP range from my provider, so need to know the
minimum viable range
##### STEPS TO REPRODUCE
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##### EXPECTED RESULTS
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Assign the minimal external IP range
Can choose between external and VPN IPs
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##### ACTUAL RESULTS
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SystemVM fails to boot due to "Insufficient address capacity ..."
~~~
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