Bridge在启动时不从DHCP服务器获取IP
我在我的ubunut 16.04盒子上创建了一座桥。 网桥在启动时无法从网络上的DHCP服务器获取IP。
/ etc / network / interfaces：
# interfaces(5) file used by ifup(8) and ifdown(8) auto br0 iface br0 inet dhcp bridge-ifaces eno1 bridge-ports eno1 up ifconfig eno1 up iface eno1 inet manual auto lo iface lo inet loopback 机器启动时，它没有连接到LAN，没有互联网连接。 我的局域网上的IP是192.168.11.xx. 引导时桥的IP是10.255.212.1。
在开机时：
bas@Viky:~$ ifconfig br0 Link encap:Ethernet HWaddr fc:aa:14:72:d0:af inet addr:10.255.212.1 Bcast:0.0.0.0 Mask:255.255.255.0 inet6 addr: fe80::feaa:14ff:fe72:d0af/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:397 errors:0 dropped:0 overruns:0 frame:0 TX packets:212 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:506043 (506.0 KB) TX bytes:18913 (18.9 KB) eno1 Link encap:Ethernet HWaddr fc:aa:14:72:d0:af UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1191 errors:0 dropped:4 overruns:0 frame:0 TX packets:951 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1285826 (1.2 MB) TX bytes:108134 (108.1 KB) Interrupt:20 Memory:f7c00000-f7c20000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:189 errors:0 dropped:0 overruns:0 frame:0 TX packets:189 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1 RX bytes:13790 (13.7 KB) TX bytes:13790 (13.7 KB) vethVOCFUV Link encap:Ethernet HWaddr fe:4e:32:1f:b7:f4 inet6 addr: fe80::fc4e:32ff:fe1f:b7f4/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:743 errors:0 dropped:0 overruns:0 frame:0 TX packets:793 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:85052 (85.0 KB) TX bytes:776556 (776.5 KB)
启动后，可以通过ifdown -a和ifup -a更正。
bas@Viky:~$ sudo ifdown -a [sudo] password for bas: Killed old client process Internet Systems Consortium DHCP Client 4.3.3 Copyright 2004-2015 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/br0/fc:aa:14:72:d0:af Sending on LPF/br0/fc:aa:14:72:d0:af Sending on Socket/fallback DHCPRELEASE on br0 to 192.168.11.1 port 67 (xid=0x79a7a104)
建立网络：
bas@Viky:~$ sudo ifup -a Waiting for br0 to get ready (MAXWAIT is 32 seconds). Internet Systems Consortium DHCP Client 4.3.3 Copyright 2004-2015 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/br0/fc:aa:14:72:d0:af Sending on LPF/br0/fc:aa:14:72:d0:af Sending on Socket/fallback DHCPDISCOVER on br0 to 255.255.255.255 port 67 interval 3 (xid=0x177d1021) DHCPDISCOVER on br0 to 255.255.255.255 port 67 interval 3 (xid=0x177d1021) DHCPREQUEST of 192.168.11.28 on br0 to 255.255.255.255 port 67 (xid=0x21107d17) DHCPOFFER of 192.168.11.28 from 192.168.11.1 DHCPACK of 192.168.11.28 from 192.168.11.1 bound to 192.168.11.28 -- renewal in 274608 seconds.
我不明白为什么网桥在启动时没有从DHCP服务器获取IP地址。
有人可以帮忙解决这个问题吗？
我从哪里开始这个网络挑战？
巴斯
（因为我对这个问题没有得到任何回应，我认为它是广泛的。因此提出了这个子问题。）
我相信你的桥段，看起来应该是这样的：
它是bridge_ports而不是桥接端口
auto br0 iface br0 inet dhcp bridge_ports eno1 bridge_stp off bridge_fd 0 bridge_maxwait 0 iface eno1 inet manual
更多信息可以在这里找到。
我的系统示例：
$ cat /etc/network/interfaces # The network interface auto br0 iface br0 inet dhcp bridge_ports eth0 bridge_stp off bridge_fd 0 bridge_maxwait 0 iface eth0 inet manual auto lo iface lo inet loopback $ ifconfig br0 Link encap:Ethernet HWaddr 00:21:85:94:46:a4 inet addr:10.0.0.100 Bcast:10.0.0.255 Mask:255.255.255.0 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:195 errors:0 dropped:0 overruns:0 frame:0 TX packets:211 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:39400 (39.4 KB) TX bytes:27433 (27.4 KB) eth0 Link encap:Ethernet HWaddr 00:21:85:94:46:a4 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:278675 errors:0 dropped:0 overruns:0 frame:0 TX packets:263759 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:110002223 (110.0 MB) TX bytes:408874062 (408.8 MB) lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:64269 errors:0 dropped:0 overruns:0 frame:0 TX packets:64269 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1 RX bytes:23474196 (23.4 MB) TX bytes:23474196 (23.4 MB)
希望这可以帮助！