0sorkon opened a new issue, #8314:
URL: https://github.com/apache/cloudstack/issues/8314
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##### ISSUE TYPE
<!-- Pick one below and delete the rest -->
* Bug Report
##### COMPONENT NAME
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Categorize the issue, e.g. API, VR, VPN, UI, etc.
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~~~
Network
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##### CLOUDSTACK VERSION
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branch.
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4.18.1.0
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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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Advanced network, isolated network with dualstack ip config
##### OS / ENVIRONMENT
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Compute:
~~~
root@cloud2:~# cat /etc/os-release
PRETTY_NAME="Ubuntu 22.04.3 LTS"
NAME="Ubuntu"
VERSION_ID="22.04"
VERSION="22.04.3 LTS (Jammy Jellyfish)"
~~~
##### SUMMARY
<!-- Explain the problem/feature briefly -->
When creating an isolated network with ipv4+ipv6, ip addresses are assigned
to the VM (displayed in the interface), but are not received via DHCP from the
virtual router inside VM. At the same time ipv4 addresses are received by guest
VMs normally. Setting the enable-ra option, which is not enabled by default in
/etc/dnsmasq.conf has no effect. When assigning ipv6 manually to the guest VM
(the one specified in the interface), ping to the virtual router fails with the
error
~~~
Destination unreachable: Address unreachable.
~~~
tcpdump on the bridge where virtual interfaces are located:
~~~
12:03:15.186417 IP6 2a00:1728:23:109f:1:ff:fee7:1 > ff02::1:ff00:1: ICMP6,
neighbor solicitation, who has 2a00:1728:23:109f::1, length 32
12:03:16.210411 IP6 2a00:1728:23:109f:1:ff:fee7:1 > ff02::1:ff00:1: ICMP6,
neighbor solicitation, who has 2a00:1728:23:109f::1, length 32
12:03:17.234483 IP6 2a00:1728:23:109f:1:ff:fee7:1 > ff02::1:ff00:1: ICMP6,
neighbor solicitation, who has 2a00:1728:23:109f::1, length 32
12:03:17.234737 IP 10.1.1.254.22 > 10.1.1.1.59366: Flags [P.], seq
1169432167:1169432483, ack 3282011073, win 501, length 316
12:03:17.234945 IP 10.1.1.1.59366 > 10.1.1.254.22: Flags [.], ack 316, win
5882, length 0
12:03:18.258392 IP6 2a00:1728:23:109f:1:ff:fee7:1 > ff02::1:ff00:1: ICMP6,
neighbor solicitation, who has 2a00:1728:23:109f::1, length 32
12:03:18.410325 IP6 fe80::1:ff:fee7:2 > ff02::1: ICMP6, router
advertisement, length 104
12:03:19.282398 IP6 2a00:1728:23:109f:1:ff:fee7:1 > ff02::1:ff00:1: ICMP6,
neighbor solicitation, who has 2a00:1728:23:109f::1, length 32
12:03:20.306561 IP6 2a00:1728:23:109f:1:ff:fee7:1 > ff02::1:ff00:1: ICMP6,
neighbor solicitation, who has 2a00:1728:23:109f::1, length 32
~~~
Tested on Debian 11, Ubuntu 22.04 b CentOS5 (deployed from built-in
template). No additional configurations at host level.
##### STEPS TO REPRODUCE
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##### EXPECTED RESULTS
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##### ACTUAL RESULTS
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~~~
~~~
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