我被 KVM 上的桥接问题搞疯了。我有一台 Ubuntu 22.10 服务器，KVM 托管桥接主机，该主机从与主机相同的网络获取 IP。更新到 UBUNTU 23.04 后，它不再工作了。谁能帮助我？
**ifconfig**
br0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.0.2 netmask 255.255.255.0 broadcast 192.168.0.255
inet6 fe80::244e:18ff:fed6:b629 prefixlen 64 scopeid 0x20<link>
ether 26:4e:18:d6:b6:29 txqueuelen 1000 (Ethernet)
RX packets 6883389 bytes 9894516783 (9.8 GB)
RX errors 0 dropped 279 overruns 0 frame 0
TX packets 4085716 bytes 2144786872 (2.1 GB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
enp2s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
ether 44:1e:a1:3b:78:0d txqueuelen 1000 (Ethernet)
RX packets 9583280 bytes 10215881814 (10.2 GB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 5077805 bytes 2230623200 (2.2 GB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 18
virbr0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
inet 192.168.122.1 netmask 255.255.255.0 broadcast 192.168.122.255
ether 52:54:00:0d:bc:93 txqueuelen 1000 (Ethernet)
RX packets 33412 bytes 4982419 (4.9 MB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 28802 bytes 14846506 (14.8 MB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
**brctl show**
bridge name bridge id STP enabled interfaces
br-4becbc5f00c4 8000.02421d943049 no
br-91f699252029 8000.0242a8b934e2 no
br-e638cb326bd4 8000.02429d009cae no
br0 8000.264e18d6b629 no enp2s0
vnet4
docker0 8000.0242fc1f43fe no
virbr0 8000.5254000dbc93 yes
**ip route**
default via 192.168.0.1 dev br0 proto static
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
172.18.0.0/16 dev br-91f699252029 proto kernel scope link src 172.18.0.1 linkdown
172.19.0.0/16 dev br-e638cb326bd4 proto kernel scope link src 172.19.0.1 linkdown
172.20.0.0/16 dev br-4becbc5f00c4 proto kernel scope link src 172.20.0.1 linkdown
192.168.0.0/24 dev br0 proto kernel scope link src 192.168.0.2
192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 linkdown
**HOST ON KVM**
root@homeassistant:—# ip a
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default glen 1000
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host noprefixroute valid_lft forever preferred_lft forever
2: ens1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default glen 1000 link/ether 52:54:00:9c:c6:cb brd ff:ff:ff:ff:ff:ff altname enp2sl inet6 fe80::a07f:b2a7:2716:d1f8/64 scope link noprefixroute valid_lft forever preferred_lft forever