Maybe you can try host interface in this case, since you are going to share the control traffic and the user traffic on the only NIC. Check https://s3-docs.fd.io/vpp/23.06/gettingstarted/progressivevpp/interface.html#create-vpp-host-interface for more details.
Regards, Xiaodong On Wed, Mar 22, 2023 at 6:50 PM <dorian_...@126.com> wrote: > Hi, > > I'm a newbie and study vpp recently. I succeed cross compiling vpp > (including my own plugin) , and it can be started up on my arm64 board > (aarch64 ubuntu 18.04). But there is only one physical NIC (eth1) which I > can use on the board, and I don't need dpdk, so there is only local0 when I > run "show int" cmd. > > My question is how to add two more ip addresses (maybe virtual > interface?) as below network tepology. > > > > My own plugin implements ip-in-ip, something like gre or gtp tunnel, to > remove ip header from port1 to port2 and add ip header from port2 to port1. > > Note that this vpp program and the whole function can run successfully on > PC vmware ubuntu virtual machine with dpdk, since I can create more ensXXX > in the virtual machine, and I use igb_uio dpdk driver to operate the > interface. But I really don't know how to implement the same function on > the board in case there is only one NIC. Both with or without dpdk is ok > for me, as it seems that igb_uio.ko is not supported on the board NIC, only > rte_kni.ko is supported, and I'm not sure if kni is still suppored in vpp > dpdk plugin. > > Any helps will be appreciated. Thanks! > Dorian > > >
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