hi everyone

i dont know why  some guests  have network problem. for example my guest can ping the host but host cant ping the guest. but when guest ping the host  and host can ping guest too !

i attach  the hypervisor vdsm log.

my  ip addr command  show that  interfaces that related to guest is down or unknown state.

18: vnet1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master Du state UNKNOWN qlen 500
    link/ether fe:1a:4a
23: vnet0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master USD state UNKNOWN qlen 500
    link/ether fe:1a:4a
26: vnet2: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master USD state UNKNOWN qlen 500
    link/ether fe:1a:4a:16:01:57 brd ff:ff:ff:ff:ff:ff
30: ovirtmgmt: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP
    link/ether a0:b3:cc
    inet 192.168.6.7/24 brd 192.168.6.255 scope global ovirtmgmt
       valid_lft forever preferred_lft forever