Hi all,


First of all: when trying to search the lists on MarkMail 
(https://cloudstack.apache.org/mailing-lists.html) I get a warning that the 
entered information will be transmitted insecurely (no HTTPs). If I accept 
that, MarkMail redirects back to HTTPs but does not present a valid certificate 
(unknown issuer, Firefox 58.0.2


Now, to the question:


We have a VPC with a pretty large CIDR (, which however only has 
tiers in the upper half ( We now would like to reduce the VPC 
CIDR. Is it safe to edit this in the database and then do a VPC restart with 
cleanup? Anything else to consider?


We use VPN s2s tunnel, so I guess we need to change the remote subnet on the 
other VPN endpoints, but other than that?


Is it possible like that, any problems to expect?


Thanks and regards




Daniel Herrmann

Network Engineer – Fraunhofer Private Cloud

CCIE #55056 (Routing and Switching)

Cisco CCDP, CCIP; Fluke CCTT


Fraunhoferstraße 5, 64283 Darmstadt

Tel.: +49 6151 155346

Mail: daniel.herrm...@zv.fraunhofer.de


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