{"id":848,"date":"2017-09-07T16:13:12","date_gmt":"2017-09-07T08:13:12","guid":{"rendered":"http:\/\/www.821121.com\/?p=848"},"modified":"2020-12-07T16:20:35","modified_gmt":"2020-12-07T08:20:35","slug":"%e8%99%9a%e6%8b%9f%e7%8e%af%e5%a2%83%e5%a6%82%e4%bd%95%e5%85%b3%e9%97%ad-virbr0","status":"publish","type":"post","link":"http:\/\/www.821121.com\/?p=848","title":{"rendered":"\u865a\u62df\u73af\u5883\u5982\u4f55\u5173\u95ed virbr0"},"content":{"rendered":"<p>\u5b89\u88c5 Xen \u6216\u5b89\u88c5 KVM \u540e\u90fd\u4f1a\u53d1\u73b0\u7f51\u7edc\u63a5\u53e3\u91cc\u591a\u4e86\u4e00\u4e2a\u53eb\u505a virbr0 \u7684\u865a\u62df\u7f51\u7edc\u63a5\u53e3\uff1a<\/p>\n<p>[oracle@whs ~]$ifconfig<br \/>\n...<br \/>\nvirbr0: flags=4099&lt;UP,BROADCAST,MULTICAST&gt;  mtu 1500<br \/>\ninet 192.168.122.1  netmask 255.255.255.0  broadcast 192.168.122.255<br \/>\nether 52:54:00:9e:6c:e6  txqueuelen 1000  (Ethernet)<br \/>\nRX packets 0  bytes 0 (0.0 B)<br \/>\nRX errors 0  dropped 0  overruns 0  frame 0<br \/>\nTX packets 0  bytes 0 (0.0 B)<br \/>\nTX errors 0  dropped 0 overruns 0  carrier 0  collisions 0<br \/>\n...<\/p>\n<p>\u8fd9\u662f\u7531\u4e8e\u5b89\u88c5\u548c\u542f\u7528\u4e86 libvirt \u670d\u52a1\u540e\u751f\u6210\u7684\uff0clibvirt \u5728\u670d\u52a1\u5668\uff08host\uff09\u4e0a\u751f\u6210\u4e00\u4e2a virtual network switch (virbr0)\uff0chost \u4e0a\u6240\u6709\u7684\u865a\u62df\u673a\uff08guests\uff09\u901a\u8fc7\u8fd9\u4e2a virbr0 \u8fde\u8d77\u6765\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b virbr0 \u4f7f\u7528\u7684\u662f NAT \u6a21\u5f0f\uff08\u91c7\u7528 IP Masquerade\uff09\uff0c\u6240\u4ee5\u8fd9\u79cd\u60c5\u51b5\u4e0b guest \u901a\u8fc7 host \u624d\u80fd\u8bbf\u95ee\u5916\u90e8\u3002\u8fd9\u4e2a virbr0 \u4e0d\u662f\u5fc5\u987b\u7684<\/p>\n<p>\u5982\u4f55\u5173\u6389\u8fd9\u4e2a virbr0 \u5462\uff1f\u5148 net-destroy \u7136\u540e net-undefine\uff0c\u6700\u540e\u91cd\u542f libvirtd \u8ba9\u8bbe\u7f6e\u751f\u6548\uff1a<\/p>\n<p>[oracle@whs ~]$virsh net-list\u00a0<br \/>\nName\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 State\u00a0 \u00a0 \u00a0 Autostart<br \/>\ndefault\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 active\u00a0 \u00a0 yes<br \/>\n[oracle@whs ~]$ virsh net-destroy default\u00a0<br \/>\nNetwork default destroyed\u00a0<br \/>\n[oracle@whs ~]$ virsh net-undefine default\u00a0<br \/>\nNetwork default has been undefined\u00a0<br \/>\n[oracle@whs ~]$ service libvirtd restart\u00a0<br \/>\nStopping libvirtd daemon:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 [\u00a0 OK\u00a0 ]\u00a0<br \/>\nStarting libvirtd daemon:\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 [\u00a0 OK\u00a0 ]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b89\u88c5 Xen \u6216\u5b89\u88c5 KVM \u540e\u90fd\u4f1a\u53d1\u73b0\u7f51\u7edc\u63a5\u53e3\u91cc<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[],"class_list":["post-848","post","type-post","status-publish","format-standard","hentry","category-linux"],"_links":{"self":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/848","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=848"}],"version-history":[{"count":2,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/848\/revisions"}],"predecessor-version":[{"id":850,"href":"http:\/\/www.821121.com\/index.php?rest_route=\/wp\/v2\/posts\/848\/revisions\/850"}],"wp:attachment":[{"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=848"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=848"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.821121.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}