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网络配置如下:
en0: flags=5e080867,80<UP,BROADCAST,DEBUG,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT,CHECKSUM_OFFLOAD(ACTIVE),PSEG,CHAIN>
inet 192.168.200.1 netmask 0xffffff00 broadcast 192.168.200.255
inet 192.168.13.200 netmask 0xffffff00 broadcast 192.168.13.255
inet 192.168.13.136 netmask 0xffffff00 broadcast 192.168.13.255
en2: flags=5e080863,80<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT,CHECKSUM_OFFLOAD(ACTIVE),PSEG,CHAIN>
inet 192.168.201.1 netmask 0xffffff00 broadcast 192.168.201.255
路由表如下:
130.0/8 192.168.13.100 UGc 0 0 en2 - - - =>
130.0/8 192.168.13.100 UGc 8 4580 en0 - - -
192.168.13.0 192.168.13.200 UHSb 0 0 en0 - - - =>
192.168.13/24 192.168.13.200 U 1 1746 en2 - - - =>
192.168.13/24 192.168.13.200 U 6 4903 en0 - - -
192.168.13.136 127.0.0.1 UGHS 0 1 lo0 - - -
192.168.13.200 127.0.0.1 UGHS 0 0 lo0 - - -
192.168.13.255 192.168.13.200 UHSb 0 0 en2 - - - =>
192.168.13.255 192.168.13.200 UHSb 0 0 en0 - - -
192.168.200.0 192.168.200.1 UHSb 0 0 en0 - - - =>
192.168.200/24 192.168.200.1 U 16 33786 en0 - - -
192.168.200.1 127.0.0.1 UGHS 0 27515 lo0 - - -
192.168.200.255 192.168.200.1 UHSb 0 395 en0 - - -
192.168.201.0 192.168.201.1 UHSb 0 0 en2 - - - =>
192.168.201/24 192.168.201.1 U 4 19544 en2 - - -
192.168.201.1 127.0.0.1 UGHS 0 4362 lo0 - - -
192.168.201.255 192.168.201.1 UHSb 0 96 en2 - - -
ping 192.168.13.100时通、时不通,traceroute结果如下:
#traceroute 192.168.13.100
trying to get source for 192.168.13.100
source should be 192.168.201.1
traceroute to 192.168.13.100 (192.168.13.100) from 192.168.201.1 (192.168.201.1), 30 hops max
outgoing MTU = 1500
1 * * *
2 * * *
3 * * *
#traceroute 192.168.13.100
trying to get source for 192.168.13.100
source should be 192.168.13.200
traceroute to 192.168.13.100 (192.168.13.100) from 192.168.13.200 (192.168.13.200), 30 hops max
outgoing MTU = 1500
1 192.168.13.100 (192.168.13.100) 21 ms 20 ms 20 ms
为什么会这样? |
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