Centos 브리지가 패킷을 전달하지 않음

Centos 브리지가 패킷을 전달하지 않음

저는 CentOS 6.5 64를 사용하고 있으며 xen을 사용하여 가상 머신(CentOS)을 생성하고 있습니다.

구성된 경우

[root@CentOS ~]# ifconfig
eth0      Link encap:Ethernet  HWaddr 08:00:27:54:B3:FA
          inet6 addr: fe80::a00:27ff:fe54:b3fa/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:10087 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6094 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:763616 (745.7 KiB)  TX bytes:541789 (529.0 KiB)

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:5 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:560 (560.0 b)  TX bytes:560 (560.0 b)

vif2.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:32 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3969 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:32
          RX bytes:2088 (2.0 KiB)  TX bytes:267825 (261.5 KiB)

xenbr0    Link encap:Ethernet  HWaddr 08:00:27:54:B3:FA
          inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::a00:27ff:fe54:b3fa/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:9896 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1892 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:613149 (598.7 KiB)  TX bytes:284945 (278.2 KiB)

brctl표시

[root@CentOS ~]# brctl show
bridge name     bridge id               STP enabled     interfaces
xenbr0          8000.08002754b3fa       yes             eth0
                                                        vif2.0

xl 네트워크 목록

[root@CentOS ~]# xl network-list xc
Idx BE Mac Addr.         handle state evt-ch   tx-/rx-ring-ref BE-path
0   0  00:16:3e:22:4f:4b     0     4     10   768/769         /local/domain/0/backend/vif/2/0

brctl 쇼맥 xenbr0

[root@CentOS ~]# brctl showmacs xenbr0
port no mac addr                is local?       ageing timer
  2     00:16:3e:22:4f:4b       no                89.35
  1     00:1e:8c:19:62:67       no                 0.00
  1     00:22:6b:fe:b9:36       no                 4.92
  1     08:00:27:54:b3:fa       yes                0.00
  1     90:c1:15:c4:89:6d       no                25.00
  1     e0:2a:82:3d:c0:c5       no                 3.78
  2     fe:ff:ff:ff:ff:ff       yes                0.00

평평한

동일한 호스트에서 가상 머신을 ping합니다.

[root@CentOS ~]# ping 192.168.1.120
PING 192.168.1.120 (192.168.1.120) 56(84) bytes of data.
64 bytes from 192.168.1.120: icmp_seq=1 ttl=64 time=2.78 ms
64 bytes from 192.168.1.120: icmp_seq=2 ttl=64 time=0.916 ms
64 bytes from 192.168.1.120: icmp_seq=3 ttl=64 time=0.917 ms
^C
--- 192.168.1.120 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2370ms
rtt min/avg/max/mdev = 0.916/1.538/2.782/0.879 ms

로컬 네트워크의 장치에서 가상 머신 ping

C:\Users\motaz>ping 192.168.1.120

Pinging 192.168.1.120 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.

iptables

[root@CentOS ~]#  iptables -L -v
Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination
   11   700 ACCEPT     all  --  any    any     anywhere             anywhere            state RELATED,ESTABLISHED
    0     0 ACCEPT     icmp --  any    any     anywhere             anywhere
    0     0 ACCEPT     all  --  lo     any     anywhere             anywhere
    0     0 ACCEPT     tcp  --  any    any     anywhere             anywhere            state NEW tcp dpt:ssh
    0     0 REJECT     all  --  any    any     anywhere             anywhere            reject-with icmp-host-prohibited

Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
 pkts bytes target     prot opt in     out     source               destination
    0     0 ACCEPT     all  --  any    any     anywhere             anywhere            PHYSDEV match --physdev-is-bridged
    0     0 REJECT     all  --  any    any     anywhere             anywhere            reject-with icmp-host-prohibited

Chain OUTPUT (policy ACCEPT 8 packets, 864 bytes)
 pkts bytes target     prot opt in     out     source               destination

누구든지 나에게 이 문제를 해결할 수 있는 아이디어를 줄 수 있다면 매우 감사하겠습니다.

brctl 쇼 stp xenbr0

[root@CentOS images]# brctl showstp xenbr0
xenbr0
 bridge id              8000.080027798267
 designated root        8000.080027798267
 root port                 0                    path cost                  0
 max age                  20.00                 bridge max age            20.00
 hello time                2.00                 bridge hello time          2.00
 forward delay             2.00                 bridge forward delay       2.00
 ageing time             300.00
 hello timer               0.65                 tcn timer                  0.00
 topology change timer     0.00                 gc timer                 109.38
 hash elasticity           4                    hash max                 512
 mc last member count      2                    mc init query count        2
 mc router                 1                    mc snooping                1
 mc last member timer      1.00                 mc membership timer      260.00
 mc querier timer        255.00                 mc query interval        125.00
 mc response interval     10.00                 mc init query interval    31.25
 flags


eth0 (0)
 port id                0000                    state                forwarding
 designated root        8000.080027798267       path cost                  4
 designated bridge      8000.080027798267       message age timer          0.00
 designated port        8001                    forward delay timer        0.00
 designated cost           0                    hold timer                 0.00
 mc router                 1
 flags

답변1

먼저 VirtualBox를 사용하여 XEN 서버를 호스팅하는 경우 무선이 아닌 이더넷을 사용하고 있는지 확인하고 무차별 모드를 "모두 허용"으로 설정하십시오.

둘째, 모든 것을 깔끔하게 만들기 위해 XEN을 사용하여 CentOS를 새로 설치하고 여기에 Bridge Network 및 CentOS VM을 설치해 보겠습니다.

외부 서버 192.168.1.6이 있다고 가정하고 /var/www/html/centos/6.3/os/i386/ 및 /var/www/html/centos/6.3/os/i386/ks에서 CentOS ISO를 추출했습니다. 파일은 cfg에서 추출되었으며 /var/www/html/centos/6.3/os/i386/repodata에는 repodata/TRANS.TBL 파일의 이름과 일치하는 올바른 이름이 있습니다.

XEN 서버(CentOS+XEN)에 다음 패키지를 설치합니다.

yum install -y rsync wget vim-enhanced openssh-clients
yum install -y libvirt python-virtinst libvirt-daemon-xen
yum install -y bridge-utils tunctl

그런 다음 ifcfg-* 파일을 편집하여 브리지를 만듭니다.

echo "DEVICE=br0
TYPE=Bridge
BOOTPROTO=dhcp
ONBOOT=yes" > /etc/sysconfig/network-scripts/ifcfg-br0

echo "DEVICE=eth0
HWADDR=XX:XX:XX:XX:XX:XX
ONBOOT=yes
TYPE=Ethernet
IPV6INIT=no
USERCTL=no
BRIDGE=br0" >  /etc/sysconfig/network-scripts/ifcfg-eth0

HWADDR=XX:XX:XX:XX:XX:XXMAC 주소와 일치하도록 행을 편집하십시오 . SSH 콘솔에서 재부팅하지 말고 VBox 콘솔을 사용하십시오.

reboot

다시 시작한 후 DHCP 서버가 있다고 가정하면 XEN 서버는 새 IP를 얻고 VBox 콘솔을 통해 로그인하여 새 IP를 얻습니다.

ifconfig 결과는 다음과 같아야 합니다.

br0       Link encap:Ethernet  HWaddr 08:00:27:23:54:69  
          inet addr:192.168.1.105  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::a00:27ff:fe23:5469/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:5063 errors:0 dropped:0 overruns:0 frame:0
          TX packets:3142 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:34251267 (32.6 MiB)  TX bytes:361205 (352.7 KiB)

eth0      Link encap:Ethernet  HWaddr 08:00:27:23:54:69  
          inet6 addr: fe80::a00:27ff:fe23:5469/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:149910 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5045 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:182020057 (173.5 MiB)  TX bytes:493792 (482.2 KiB)

이제 브리지가 준비되었으므로 br0의 IP를 사용하여 SSH 콘솔을 다시 가져올 수 있습니다.

이전 브리지를 사용하는 XEN에 가상 머신을 생성하려면:

cd /var/lib/xen/images/

가상 디스크를 생성합니다:

dd if=/dev/zero of=centos_1.img bs=4K count=0 seek=1024K
qemu-img create -f raw centos_1.img 8G 

그런 다음 virt-install을 사용하여 가상 머신을 만듭니다.

virt-install -d -n TestVM1 -r 512 --vcpus=1 \
--bridge=br0 --disk /var/lib/xen/images/centos_1.img \
--nographics -p -l "http://192.168.1.6/centos/6.3/os/i386" \
--extra-args="text console=com1 utf8 console=hvc0 ks=http://192.168.1.6/centos/6.3/os/i386/ks.cfg"

이제 가상 머신이 시작되고 DHCP 서버에서 정상적으로 IP를 얻을 수 있으며 무인 원격 설치를 완료할 수 있습니다.

XEN에서 ifconfig의 결과는 다음과 유사해야 합니다.

br0       Link encap:Ethernet  HWaddr 08:00:27:23:54:69  
          inet addr:192.168.1.105  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::a00:27ff:fe23:5469/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:10247 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8090 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:102264338 (97.5 MiB)  TX bytes:827859 (808.4 KiB)

eth0      Link encap:Ethernet  HWaddr 08:00:27:23:54:69  
          inet6 addr: fe80::a00:27ff:fe23:5469/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:998780 errors:0 dropped:0 overruns:0 frame:0
          TX packets:37992 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:724701715 (691.1 MiB)  TX bytes:2897912 (2.7 MiB)


vif5.0    Link encap:Ethernet  HWaddr FE:FF:FF:FF:FF:FF  
          inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:37 errors:0 dropped:0 overruns:0 frame:0
          TX packets:67 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:32 
          RX bytes:4381 (4.2 KiB)  TX bytes:9842 (9.6 KiB)

일단 설치되면 xen 콘솔을 사용하여 IP를 얻은 다음 SSH 콘솔을 사용할 수 있습니다.

관련 정보