Re: [libvirt] [PATCH 1/2] qemu: Remove network type limitation for qemuARPGetInterfaces

On 09/10/2018 02:55 PM, Chen Hanxiao wrote: IMO, As long as the host interface and the guest interface communicated through osi layer3 or above, Host kernel will maintaince the corresponding ip <-> macentry in arp able. What you mentioned above remind me one thing: I forgot to mention that if the switch doesn't support hairpin mode, thenthe virtual interfaces which backend is mactap can't communicate withhost, that means the host arp table won't include the ip <-> mac information of suchvirtual interfaces. Inthis case, the qemuARPGetInterfaces can't get IP. So I'd like to change the code to only ignore VIR_DOMAIN_NET_TYPE_DIRECT in patch V2, For anyelsenet types, the code will iterate the arp table for loopto try to search if there is a matched entry. what do you think? Thanks, Lin