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初级工程师
  
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发表于 2018-12-12 16:43:40
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It is impossible to do it as you don't know which tickets they will ask you on the exam.
: v3 {+ i- h: P! Q3 ^So, you should ping and check each device in order to find the errors and solutions. Otherwise, you may choose the wrong answer and then it may affect next tickets . - lose marks and fail..." t* t( y) |) m& C9 b# {
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Some of my suggestions have been provided below:
5 V) h. _ X- G0 d" U4 T1st - you need to justify ipv4 question or ipv6 question 4 m! g/ u- G4 n
2nd - for ipv4 question, H- F' E- d; I7 B) w7 ^4 Q: w/ C# j
ping 10.2.1.1 (DSW1) on client -> fail _> check DSW1 (vlan filter) and ASW1 (port security / access vlan / switch to switch trunk)
V% }% S0 @; W. s0 ]" {' S% ^if ping 10.2.1.1 -> ok, then ping 10.1.1.10 (R4) -> fail and then check R4 (eigrp passive interface and redistribution route-map ospf -> eigrp )
/ Y5 w |4 ~9 |- o- E; nif ping 10.1.1.10, then ping 10.1.1.2 and 10.1.1.1 -> pass and then check R1 (BGP / NAT/ NAT ACL / R1 ACL) , normally , R1 (always asks bgp and NAT only)
+ b4 n6 ?) {) K, {if ping 10.1.1.1 -> fail , then check R1 and problem should be ospf authentication (but this question should seldom be asked. ) & t4 E" h$ G; m& Z7 P1 E
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For ipv6
* d, d1 c2 o( [4 {R2 - ospf on s0/0/0.23 - area 0
4 k6 o1 P; P( v4 _* E- Ashow ipv6 ospf neighbor -> no neighbor on R3
. v5 O. k& |7 lshow run + B7 ^0 ]" ^* y S$ @7 G/ H- M
missing ipv6 ospf 1 area 0 on s0/0/0.23 (R2). 7 T) p$ h1 f! V. ~- c/ Y
# } H4 {1 W- y! Q. lR3 - tunnel ; J5 O ?# w; u, r; i
show ipv6 ospf neighbor - no neighbor on tunnel (R3) on R4. x0 G3 r( e, U/ p
show run on R3 and R4 * W' a" _7 X0 D: `
3 }/ `# _0 {* |/ @" bremove tunnel mode ipv6 on tunnel (R3).
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2018-12-12 16:43:40
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