呵呵，这是一种巧合.
问题是这样的.
有一台 rh as 3的oracle+resin+.java的服务器A ip:192.168.0.20.4。今天访问突然出问题....部分MM可以访问(web,telnet,pi.ng测试)，一些GG无法访问.......教育
分析问题:
我在一台不能访问的机器上,进行.ping 测试,同时在A SERVER上t.cpdump抓包分析..
在B CLIENT(192.16.8.0.234.)上ping .
[
root@A.LLLINK-DBTest root]#. ping 192.168.0.204 电子
PING 192.168.0..204 (192.168.0.204) 56(84) bytes o.f data.健康
--- 1.92.168.0.7 .ping statistics ---.
26 packets transmitted, .0 received,. 100% packet loss, time 25011ms教育
复制代码
在A服务器上抓包分析
tcpdump -vv -nne. host .$(echo $HOSTNAME)虚拟主机
15:01:27.236845 .0:e:c:65:91:67 ff:ff:ff:ff:ff:ff 0806 60: arp who-h.as 192.168.0.204 te.ll 192.168.0.234(广告)
15:01:27.236880 0:1:6c:2c:22:fe 0:e:c:65:91:67 0806 42: arp ..reply 192.168.0.204 is-at 0:.1:6c:2c:22:fe 美容
15:01:28.237156 0:e:c:65:91:67 ff:ff:.ff:ff:ff:ff 0806 60: arp who-has 192.168..0.20.4 tell 192.168.0.234--- 印刷
15:01:28.23.7182 0:1:6c:2c:22:fe 0:e:c:65:91:67 0806 42: arp reply 192.168.0.204 is-.at 0:1:6c:2c:2.2:fe 电子
15:01:29.2371.15 0:e:c:6.5:91:67 ff:ff.:ff:ff:ff:ff 0806 60: arp who-has 192.168.0.204 tell 192.168.0.234.
15:01:29.23.7130 0:1:6c:2c.:22:fe 0:e:c:65:91:67 0806 42: arp. reply 192.168.0.204 is-at 0:1:6c:2c:22:fe 建材
15:01:29.896210 0:e:c:65:91:67 ff:ff:ff:ff:ff:ff 0806 60: arp who-has 192.168.0..20.0 tell 192.168.0.23.4教育
15:01:30.237250 0:e:c:65:91:67 ff:ff.:ff:ff:ff.:ff. 0806 60: arp who-has 192.168.0.204 tell 192.168.0.234<性病>
15:01:30.237266 0:1:6c:2c:22:.fe 0.:e:c:65:91:6.7 0806 42: arp reply 192.168.0.204 is-at 0:1:6c:2c:22:fe.
15:01:31.237573 0:e:c:65:91:67 ff:ff:ff:.ff:ff:ff 0806 60: .arp who-has 192.168.0.204 tell 1.92.168.0.234投资
15:01:31.23760.6 0:1:6c:2c:22:fe 0:e:c:65:91:6.7 0806 42: arp reply 192.168.0.204 is-at 0:1:6.c:2c:22:fe 健康
15:01:32.237528 0:e:c:65:91:67 ff:ff:ff:ff.:ff:.ff 0806 60: arp who-has 192.168.0.20.4 tell 192.168.0.234.
15:01:32.237551 0:1:6c:2c:22:fe. .0:e:c:65:91:67 0806 42: arp reply 192.168.0..204 is-at 0:1:6c:2c:22:fe.
15:01:33.237665 0:e:c:65:.91:67 ff:ff:ff:ff.:ff:ff 08.06 60: arp who-has 192.168.0.204 tell 192.168.0.234服务器
15:01:33.237685 0:1:6c:2c:22:fe 0:e:c:65:91:67 0.806 42: arp reply 192.168..0.204 is-at 0:1.:6c:2c:22:fe投资
15:01:34.237982 0:e:c.:65:91:67 ff:ff:.ff:ff:ff:ff 0806 60: arp who-has 192.168.0.204 tell 192.168..0.234<性病>
15:01:34.238008 0:1:6c:2c:22:fe 0:e:c:65:91:67 0806 42: arp re.ply 192..1.68.0.204 is-at 0:1:6c:2c:22:fe( 游戏 )
复制代码
从上面可以清晰的看到,没有返回icmp报文,返回的都是AR.P广.播的包............. 美容
而在B CLIETN上查看arp -a .列表.
C:\D.ocuments and Settings\engineer>a.rp -a 汽车
Interf.ace.: 192.168.0.7 --- 0x2.
Internet Address Physic.al Addr.ess Type( 游戏 )
192.168.0.204 .00-00.-00-00-00-00 invalid 女人
192..168.0.211 00-0.e-a1-65-9E-67 dynamic 外汇
复制代码
汗死.,为什么MAC都显示为零呢(广告)
然后.，通过.arp -s 设置静态的MAC绑定,还是不能解决问题.....( 游戏 )
why?
[ 本帖最后由 we.byuhang .于 2007-2-15 15:44 编辑 ]--------------彩票
