how do you configure ipv6 for a private gateway?

[bradh352]

I'm still new to cloudstack, but I have a need to connect a pre-existing network zone to a cloudstack VPC so I need to do that with a private gateway. How do I specify the IPv6 address to use as a gateway and netmask?

[DaanHoogland]

@bradh352 , I do not think adding IPv6 CIDRs is supported (yet)

[weizhouapache]

@weizhouapache could you give a litte more detail to your description of the restriction?

It sounds like you are describing a network, with uses "ROUTED" mode for IPv6 and "NATTED" mode for IPv4, which, according to the documentation, should not be supported - it's either "ROUTED" or "NATTED" for both, IPv4 and IPv6.

But probably i just misunderstand your description or i am missing the obvious?

IPv6 supports only ROUTED mode. Please refer to https://docs.cloudstack.apache.org/en/latest/plugins/ipv6.html#isolated-network-and-vpc-network-tier

The options are

• NATTED: NATTED IPv4 only.
• NATTED Dual-Stack: NATTED IPv4 and ROUTED IPv6 (only supports static routing, which was introduced in network: ipv6 static routes #5786 )
• ROUTED: both IPv4 and IPv6 (optional) are ROUTED (support both static and dynamic routing, introduced in New feature: Dynamic and Static Routing #9470)

The missing is

• NATTED Dual-Stack: NATTED IPv4 and ROUTED IPv6 (Dynamic Routing)

[bhouse-nexthop]

missing from documentation or missing from implementation?

[StepBee]

@weizhouapache thanks for your hint you were describing the "NATTED Dual-Stack" option, where of course IPv6 is routed by design.
It still confuses me is that you describe BGP for IPv6 is an option in this "NATTED Dual-Stack"
when use routed ipv6 and natted ipv4, we can support BGP for ipv6 only
but mention
NATTED Dual-Stack: NATTED IPv4 and ROUTED IPv6 (only supports static routing

[weizhouapache]

missing from documentation or missing from implementation?

@bradh352
it is missing from the implementation

when use routed ipv6 and natted ipv4, we can support BGP for ipv6 only

I mean this is missing, sorry it confused you. @StepBee

#9470 mainly focused on ROUTED mode (IPv4 or IPv4 + IPv6, static or dynamic routing), the options with NATTED mode are not changed, therefore, the in the option 2 (NATTED Dual-Stack), ipv6 only support static routing. Dynamic routing with BGP is not supported.

[weizhouapache]

oh? I can probably live with that, I didn't know that was an option. Just curious if I missed it in the documentation ?

@bradh352
if you want to try out Routed VPC, refer to https://docs.cloudstack.apache.org/en/latest/adminguide/networking/dynamic_static_routing.html