Re: IPv4+IPv6 Dual Stack Networking for Shared Networks
Op 20/02/2024 om 09:16 schreef Wei ZHOU: Hi, For a shared network with IPv6, you need to configure SLAAC on the upstream router, as CloudStack VR is not the IPv6 gateway. Correct with a few additions: - Make sure you set the lifetime of the RA to something like 60s and the interval to 10s, this makes for a fast failover OR - Use VRRPv3 and sent out SLAAC with the Unicast VRRPv3 address - You might want to sent the rDNS servers with SLAAC as well - Make sure privacy extensions are disabled inside the VMs Wido -Wei On Tue, 20 Feb 2024 at 09:00, Ozhan Karaman wrote: Hi All; I am using Cloudstack 4.19, I am trying to enable IPv4+IPv6 Dual Stack Networking for Shared Networks, so I add a new network with both dual stack ip definitions in Shared Mode. I started the vm and I noticed that I don't get ipv6 ip from VR. I connected to VR to check dhcp server/dnsmasq setup and it's setup is ok but I noticed that VR's eth0 does only have an ipv4 ip address not v6. I started to investigate more in VR and I noticed that ipv6 is disabled by sysctl settings so network setup could not be successfully applied. By the way, I am using the 4.19 SystemVM template. So it looks like the VR image does not like to work with IPv6, I started to investigate Network Offerings to check out if ipv6 needs to be enabled for shared networking somewhere but I could not find any specific settings. Does anyone have any clue for the missing piece? Thanks Ozhan
Re: IPv4+IPv6 Dual Stack Networking for Shared Networks
Hi, For a shared network with IPv6, you need to configure SLAAC on the upstream router, as CloudStack VR is not the IPv6 gateway. -Wei On Tue, 20 Feb 2024 at 09:00, Ozhan Karaman wrote: > Hi All; > > I am using Cloudstack 4.19, I am trying to enable IPv4+IPv6 Dual Stack > Networking for Shared Networks, so I add a new network with both dual stack > ip definitions in Shared Mode. I started the vm and I noticed that I don't > get ipv6 ip from VR. > > I connected to VR to check dhcp server/dnsmasq setup and it's setup is ok > but I noticed that VR's eth0 does only have an ipv4 ip address not v6. I > started to investigate more in VR and I noticed that ipv6 is disabled by > sysctl settings so network setup could not be successfully applied. By the > way, I am using the 4.19 SystemVM template. > > So it looks like the VR image does not like to work with IPv6, I started to > investigate Network Offerings to check out if ipv6 needs to be enabled for > shared networking somewhere but I could not find any specific settings. > > Does anyone have any clue for the missing piece? > > Thanks > Ozhan >
IPv4+IPv6 Dual Stack Networking for Shared Networks
Hi All; I am using Cloudstack 4.19, I am trying to enable IPv4+IPv6 Dual Stack Networking for Shared Networks, so I add a new network with both dual stack ip definitions in Shared Mode. I started the vm and I noticed that I don't get ipv6 ip from VR. I connected to VR to check dhcp server/dnsmasq setup and it's setup is ok but I noticed that VR's eth0 does only have an ipv4 ip address not v6. I started to investigate more in VR and I noticed that ipv6 is disabled by sysctl settings so network setup could not be successfully applied. By the way, I am using the 4.19 SystemVM template. So it looks like the VR image does not like to work with IPv6, I started to investigate Network Offerings to check out if ipv6 needs to be enabled for shared networking somewhere but I could not find any specific settings. Does anyone have any clue for the missing piece? Thanks Ozhan
