[GitHub] [cloudstack] hstan77 commented on issue #4463: IPv6 Subnet Support for AdvanceZone NAT

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hstan77 commented on issue #4463:
URL: https://github.com/apache/cloudstack/issues/4463#issuecomment-878969855


   Hi All,
   
   i suggested before in on gitshub to do like this, may be can consider it:
   
   Physical Router have IPv6 with /48 prefix
   
   Cloudstack allocates each VR with one /64 prefix , and VR will have
   function of DHCP6 to assign to the VM .  Cloudstack VR have a default route
   to the /48 IP in Physical Router.
   
   Cloudstack only allocates  the  /64 of /48 that available in Physical
   router to VR.  and VR assign IPv6 via DHCP6 to the VM.
   
   The router side need to make sure the /48 is only use for Cloudstack , but
   not self allocate it to others to avoid overlap.
   
   For IPv6, minimum to use in Router is /48 cause that is like minimum prefix
   to annocue to outside world,  This /48 is similar to /24 in IPv4 .
   While Ipv6 /64 is similar to /32 in IPv4 k which is like a single IP .   So
   in this way, it shall no need any BGP / OSPF session between Cloustack and
   Physical Router.  The traffic will reach /64 at VR and VR route to VM
   single IPv6
   
   We can try on this.
   
   
   On Tue, Jul 13, 2021 at 5:14 PM Wei Zhou ***@***.***> wrote:
   
   > @wido <https://github.com/wido> @GabrielBrascher
   > <https://github.com/GabrielBrascher> @mkriegs <https://github.com/mkriegs>
   > @hstan77 <https://github.com/hstan77> @luhaijiao
   > <https://github.com/luhaijiao>
   > we are investigating the ipv6 support in cloudstack, (see my colleague
   > Alex's email in users/dev mailing list:
   > https://markmail.org/message/dd7uihxwpav6jhkc). It would be nice to get
   > your input.
   >
   > —
   > You are receiving this because you were mentioned.
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   > <https://github.com/apache/cloudstack/issues/4463#issuecomment-878919734>,
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   -- 
   Regards,
   Hean Seng
   


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