vif0.0问题-vif0.0: received packet with own address as source address
服务器：192.168.15.11
服务器版本：CentOS release 5.5 (Final)
内核：2.6.18-194.el5xen x86_64 x86_64 x86_64 GNU/Linux
问题：ssh连接失败，接上显示器查看，满屏幕滚动显示vif0.0: received packet with own address as source address
分析问题解决问题
#查看系统信息
dmesg
vif0.0: received packet with own address as source address
vif0.0: received packet with own address as source address
vif0.0: received packet with own address as source address
printk: 1 messages suppressed.
vif0.0: received packet with own address as source address
printk: 7 messages suppressed.
vif0.0: received packet with own address as source address
printk: 2 messages suppressed.
vif0.0: received packet with own address as source address
printk: 4 messages suppressed.
vif0.0: received packet with own address as source address
vif0.0: received packet with own address as source address
vif0.0: received packet with own address as source address
vif0.0: received packet with own address as source address
vif0.0: received packet with own address as source address
vif0.0: received packet with own address as source address
#查看系统日志
tail -f /var/log/messsge
Aug 17 13:10:31 ldap01 kernel: vif0.0: received packet with own address as source address
Aug 17 13:10:39 ldap01 kernel: printk: 4 messages suppressed.
Aug 17 13:10:39 ldap01 kernel: vif0.0: received packet with own address as source address
Aug 17 13:10:41 ldap01 kernel: printk: 2 messages suppressed.
Aug 17 13:10:41 ldap01 kernel: vif0.0: received packet with own address as source address
Aug 17 13:10:46 ldap01 kernel: printk: 11 messages suppressed.
Aug 17 13:10:46 ldap01 kernel: vif0.0: received packet with own address as source address
Aug 17 13:10:52 ldap01 kernel: vif0.0: received packet with own address as source address
Aug 17 13:10:57 ldap01 kernel: printk: 1 messages suppressed.
Aug 17 13:10:57 ldap01 kernel: vif0.0: received packet with own address as source address
Aug 17 13:11:03 ldap01 kernel: printk: 1 messages suppressed.
Aug 17 13:11:03 ldap01 kernel: vif0.0: received packet with own address as source address
#查看网络配置
[xuekun@ldap01 ~]$ /sbin/ifconfig
eth0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF #注意观察
inet addr:172.16.1.11 Bcast:172.16.1.255 Mask:255.255.255.0
inet6 addr: fe80::220:aff:fe10:fcff/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:136140 errors:0 dropped:0 overruns:0 frame:0
TX packets:19734 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:11102984 (10.5 MiB) TX bytes:2350144 (2.2 MiB)
eth0:6 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF #注意观察
inet addr:10.0.0.6 Bcast:10.0.15.255 Mask:255.255.240.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
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:16436 Metric:1
RX packets:188 errors:0 dropped:0 overruns:0 frame:0
TX packets:188 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:15932 (15.5 KiB) TX bytes:15932 (15.5 KiB)
peth0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF #注意观察
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:420980 errors:0 dropped:0 overruns:0 frame:0
TX packets:32279 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:34869961 (33.2 MiB) TX bytes:3708085 (3.5 MiB)
Interrupt:254 Base address:0x4000
vif0.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF #注意观察
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:31951 errors:0 dropped:0 overruns:0 frame:0
TX packets:408757 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3655532 (3.4 MiB) TX bytes:32287014 (30.7 MiB)
说明：eth0,eth0:6 的HWaddr地址是一样，跟vif0.0不能一样，如果一样就是有问题了。
上述结果已说明存在问题，HWaddr地址都一样，MAC地址重复，所以才会出现满屏的错误。
解决：
办法一、
mv /etc/sysconfig/network-scripts/ifcfg-eth0 /home/XX/ #备份网卡配置文件
reboot #重启，自动生成配置文件，MAC地址还是：FE:FF:FF:FF:FF:FF
办法二、
vi /etc/ sysconfig/network-scripts/ifcfg-eth0 #手动指定一个一个MAC地址。
/etc/init.d/networt restart #重启网卡，失败，错误提示和屏幕报错一样。
办法三、
ifconfig eth0 down
ifconfig eth0 hw ether 00:20:0A:10:FC:FF
ifconfig eht0 up
启动没有报错，说明没问题，进一步测试。
/etc/init.d/network restart #重起网络配置，正常，没有报错。
查看网络配置：
ifconfig
eth0 Link encap:Ethernet HWaddr 00:20:0A:10:FC:FF
inet addr:172.16.1.11 Bcast:172.16.1.255 Mask:255.255.255.0
inet6 addr: fe80::220:aff:fe10:fcff/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:136140 errors:0 dropped:0 overruns:0 frame:0
TX packets:19734 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:11102984 (10.5 MiB) TX bytes:2350144 (2.2 MiB)
eth0:6 Link encap:Ethernet HWaddr 00:20:0A:10:FC:FF
inet addr:10.0.0.6 Bcast:10.0.15.255 Mask:255.255.240.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
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:16436 Metric:1
RX packets:188 errors:0 dropped:0 overruns:0 frame:0
TX packets:188 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:15932 (15.5 KiB) TX bytes:15932 (15.5 KiB)
peth0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:420980 errors:0 dropped:0 overruns:0 frame:0
TX packets:32279 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:34869961 (33.2 MiB) TX bytes:3708085 (3.5 MiB)
Interrupt:254 Base address:0x4000
vif0.0 Link encap:Ethernet HWaddr FE:FF:FF:FF:FF:FF
inet6 addr: fe80::fcff:ffff:feff:ffff/64 Scope:Link
UP BROADCAST RUNNING NOARP MTU:1500 Metric:1
RX packets:31951 errors:0 dropped:0 overruns:0 frame:0
TX packets:408757 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:3655532 (3.4 MiB) TX bytes:32287014 (30.7 MiB)
有可能用以上办法还是不行，可以尝试以下两种办法：
1、用CentOS5.5构建的Xen domain-0突然发现连接不上网络。用ifup eth0一试，出现以下错误：
Device eth0 has different MAC address than expected, ignoring
把/etc/sysconfig/network-scripts/ifcfg-eth0里的HWADDR那一行comment out后，出现以下信息：
vif0.0 received packet with own address as source address
最后，把/etc/sysconfig/network-scripts/ifcfg-eth0里的
HWADDR=00:xx:xx:xx….
改成
MACADDR=00:xx:xx:xx…
再运行/etc/rc.d/init.d/network restart重启网络服务后，终于可以正常连接网络。
#之后，原来是想再现这个错误，却发现把MACADDR改回HWADDR也可以连接上网络。
2、
Centos/linux重启出现错误信息：
Device eth0 has different MAC address than expected
应该是dmesg 和 eth0 配置文件之间的冲突。
[[email protected] ~]# dmesg | grep eth0
divert: allocating divert_blk for eth0
eth0: RTL-8139C+ at 0xd0842000, 40:61:86:ED:25:E7, IRQ 11
[[email protected] ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE=eth0
BOOTPROTO=static
HWADDR=40:61:86:ED:35:17
ONBOOT=yes
TYPE=Ethernet
IPADDR=192.168.122.101
NETMASK=255.255.255.0
GATEWAY=192.168.122.1
DNS1=192.168.122.1
改正很简单，HWADDR=40:61:86:ED:35:17 改成正确的40:61:86:ED:25:E7 就OK了
HWADDR=40:61:86:ED:25:E7