我们有几个红帽企业Linux服务器与群集
uname -a: Linux deda-ora1 2.6.18-194.el5 #1 SMP Mon Mar 29 22:10:29 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux rpm -qf /etc/redhat-release enterprise-release-5-0.0.22 每个节点4个nic：
eth0奴隶债券
eth2救济债券
eth1未使用
债券0掌握债券
ifconfig first node: bond0 Link encap:Ethernet HWaddr D8:D3:85:B5:B6:AE inet addr:172.19.19.65 Bcast:172.19.19.255 Mask:255.255.255.0 inet6 addr: fe80::dad3:85ff:feb5:b6ae/64 Scope:Link UP BROADCAST RUNNING MASTER MULTICAST MTU:1500 Metric:1 RX packets:62794748 errors:0 dropped:28 overruns:0 frame:0 TX packets:67609557 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:17019400666 (15.8 GiB) TX bytes:48301294532 (44.9 GiB) eth0 Link encap:Ethernet HWaddr D8:D3:85:B5:B6:AE UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1 RX packets:60616622 errors:0 dropped:28 overruns:0 frame:0 TX packets:67609557 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:16815386111 (15.6 GiB) TX bytes:48301294532 (44.9 GiB) Interrupt:82 Memory:fa000000-fa012800 eth2 Link encap:Ethernet HWaddr D8:D3:85:B5:B6:AE UP BROADCAST RUNNING SLAVE MULTICAST MTU:1500 Metric:1 RX packets:2178126 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:204014555 (194.5 MiB) TX bytes:0 (0.0 b) Interrupt:90 Memory:f8000000-f8012800 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:32107580 errors:0 dropped:0 overruns:0 frame:0 TX packets:32107580 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:2185420255 (2.0 GiB) TX bytes:2185420255 (2.0 GiB) ip addr first node: 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: __tmp92808343: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 1000 link/ether f4:ce:46:87:86:50 brd ff:ff:ff:ff:ff:ff 3: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop qlen 1000 link/ether f4:ce:46:87:86:51 brd ff:ff:ff:ff:ff:ff 4: eth0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond0 qlen 1000 link/ether d8:d3:85:b5:b6:ae brd ff:ff:ff:ff:ff:ff 5: eth2: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast master bond0 qlen 1000 link/ether d8:d3:85:b5:b6:ae brd ff:ff:ff:ff:ff:ff 6: sit0: <NOARP> mtu 1480 qdisc noop link/sit 0.0.0.0 brd 0.0.0.0 7: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue link/ether d8:d3:85:b5:b6:ae brd ff:ff:ff:ff:ff:ff inet 172.19.19.65/24 brd 172.19.19.255 scope global bond0 inet 172.19.19.164/24 scope global secondary bond0 inet6 fe80::dad3:85ff:feb5:b6ae/64 scope link valid_lft forever preferred_lft forever cat /etc/sysconfig/network NETWORKING=yes NETWORKING_IPV6=no HOSTNAME=deda-ora1 GATEWAY=172.19.19.5
集群服务是：
1个Oracle数据库
1虚拟IP地址“172.19.19.164”
在过去的五年中，所有工作都完美无缺，具有以下路由表：
Destination Gateway Genmask Flags MSS Window irtt Iface 172.19.19.0 * 255.255.255.0 U 0 0 0 bond0 169.254.0.0 * 255.255.0.0 U 0 0 0 bond0 default 172.19.19.5 0.0.0.0 UG 0 0 0 bond0
昨天晚上有人启用了防火墙设备“pfense”rip协议，oracle服务器开始也没有响应。
最后我们发现启用虚拟IP集群服务，几秒钟后出现一条新的默认路由。
路由表成为：
172.19.19.0 0.0.0.0 255.255.255.0 U 0 0 0 bond0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 bond0 0.0.0.0 172.19.19.11 0.0.0.0 UG 0 0 0 bond0 0.0.0.0 172.19.19.5 0.0.0.0 UG 0 0 0 bond0
172.18.19.11是pfsense家电ip
我们用路由del 0.0.0.0解决了。 gw 172.19.19.11
两个群集节点上都没有安装或运行“路由”或“门控”。
看来，集群听从pfesese广播的“路由表”。
可能吗？
谢谢你的帮助