[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] IPV6 Details on Xen Hypervisor
On May 6, 2011, at 2:59, "Varshney, Chamanesh Mohan (STSD)" <chamanesh-mohan.varshney@xxxxxx> wrote: > > Hi Experts, > > Our product supports Xen hypervisor on RHEL and SUSE in our environment. Now > we are going to support IPV6 support for all hypervisors. > > Can you please provide me details for Xen related to IPv6 support.I am > expecting pointers on > > - Whether Xen supports ipv6 > - Whether Protocol(like SSH etc) used in communication (North/south) supports > IPv6. > > > Please provide me pointers on the details of IPv6 on Xen. > > Regards, > Chamanesh To be pedantic: - The hypervisor does not support _any_ networking; its job is to cordinate low-level access to CPU and memory, and to pass hardware I/O requests to the "Dom0" guest OS. It's the Dom0 and DomU guest OSes which do all of the networking, so it depends on what you use and configure. - For performance, there are special "network card" drivers for domU's that communicate with back-end drivers running in the dom0. I believe there are several varieties of those you can use, but also believe they all operate down at the Ethernet frame level. Regardless, all of them will support IPv6. - Most Xen documentation, as well as configuration generation tools, assume that you want to use the Xen version of these special drivers ("VIF"), and have the dom0 be a layer-2 (Ethernet frame) bridge between the domUs and the physical LAN cards. - But there are lots of ways you could set it up. It's even possible to have no networking stack at all on the domU; you could use PCI pass-through and have the dom0 directly talk to the card. Or, you could configure the dom0 as an IPv4-IPv6 bridge, and have one or more domUs as IPv4 only. Or put IPv6 tunneling in a domU, and not bother with v6 on the dom0. Or have a domU serve as the layer-3 (IP level) router for other guests, or... - Higher level protocols, such as SSH, are completely handled by the domU or dom0 you are talking to, and have nothing to do with Xen. -- Michael South msouth@xxxxxxxxxx _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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