新兵上阵
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- 2014-10-6
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累计签到:1 天 连续签到:0 天 [LV.20]漫游旅程
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4金币
一级路由器(WhiteYY):192.168.1.222一级子网 192.168.1.0/24
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二级路由器(BlueYY):192.168.99.1/192.168.1.1993 Y6 j, K' e8 S* X3 \
二级子网 192.168.99.0/24+ e/ u2 X; O& K" c F% _' o
二级子网中PC: 192.168.99.119
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故障现象:从PC可以ping通WhiteYY,但是从WhiteYY无法ping通PC
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( Q3 G9 }* H* ^2 i" M【诊断操作如下】: c& C8 o: I$ B f
0;BlueYY: /home/root[BlueYY /home/root]# ping 192.168.1.222 可以通- k3 b; [: h2 K! w* I
PING 192.168.1.222 (192.168.1.222): 56 data bytes& ^% X& [2 _% h% p. D3 T& ]
64 bytes from 192.168.1.222: seq=0 ttl=64 time=1.633 ms
5 P" f7 D u1 Z2 r0 F4 y9 m64 bytes from 192.168.1.222: seq=1 ttl=64 time=1.333 ms
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0;WhiteYY: /home/root[WhiteYY /home/root]# ping 192.168.99.1 可以通
& Z4 Y/ y' f) Z- J3 W+ v7 ]PING 192.168.99.1 (192.168.99.1): 56 data bytes+ A( v2 H0 a3 Q+ [3 p" j! `+ `
64 bytes from 192.168.99.1: seq=0 ttl=64 time=1.407 ms
8 m' E, n6 a( ?" A64 bytes from 192.168.99.1: seq=1 ttl=64 time=2.176 ms
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5 K+ d$ n8 p1 d3 P% g--- 192.168.99.1 ping statistics ---2 Q7 R2 l* x2 T' M& A% J6 ^9 n; \! x% Y
2 packets transmitted, 2 packets received, 0% packet loss1 H. F7 Q# e1 j7 o$ e4 G7 A
round-trip min/avg/max = 1.407/1.791/2.176 ms* ^! `$ y2 t! j, i9 m
0;WhiteYY: /home/root[WhiteYY /home/root]# ping 192.168.99.119 不能通' U. C3 ~& P, j0 m- @
PING 192.168.99.119 (192.168.99.119): 56 data bytes
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' b/ G9 T; i2 D8 y) h5 s u- {: u* B【路由表打印如下】' D# d2 {: d4 Q9 g& @. b2 r6 [4 U5 E1 Q G
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0;BlueYY: /home/root[BlueYY /home/root]# route
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! M0 O( d, Z3 p/ |2 g! b- D+ }1 SDestination Gateway Genmask Flags Metric Ref Use Iface) f2 C3 {" B3 w" Y
default 192.168.1.222 0.0.0.0 UG 1 0 0 apcli09 ~/ h9 `; m. ~: ~
127.0.0.0 * 255.0.0.0 U 0 0 0 lo
) |5 b) C, A" S3 D192.168.1.0 * 255.255.255.0 U 0 0 0 apcli0( Z8 Z) z y& G I9 ~9 K
192.168.99.0 * 255.255.255.0 U 0 0 0 br01 G9 N+ @- b# a# A/ F* U
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0;WhiteYY: /home/root[WhiteYY /home/root]# route
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Destination Gateway Genmask Flags Metric Ref Use Iface& N- }1 r2 _7 Y
default 112.95.24.1 0.0.0.0 UG 1 0 0 ppp0
. a6 r5 M7 |( ?5 K) S112.95.24.1 * 255.255.255.255 UH 0 0 0 ppp04 ~! b) v/ y% P- G
127.0.0.0 * 255.0.0.0 U 0 0 0 lo! R9 I' ~7 Q u$ U c [ W9 K
192.168.1.0 * 255.255.255.0 U 0 0 0 br0
3 `# I, o X5 V9 [4 r192.168.88.0 BlackYY 255.255.255.0 UG 0 0 0 br0
' k: }4 Y( P3 M0 H5 v$ l0 f$ O192.168.99.0 BlueYY 255.255.255.0 UG 0 0 0 br02 U) H) l0 O9 N$ H
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