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本帖最后由 小乔 于 2017-11-22 09:13 编辑 & @' M7 k3 K+ s2 I% B1 b
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Question 1 拖图题1 O$ b% g0 W, s3 D
Gre Tunnel Header Mandatory and Optional ??
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Mandatory: Reserved0, Version, Protocol Type
2 {9 Z" O: y Y J: DOptional: Checksum, Reserved1, Key, and Sequence Number
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Question 2 拖图题. d, ?4 V5 k, u E/ d2 W; L* Z; c+ u- h
Gre tunnel Header,which one is standard,witch one Extended? (4 Standard,2 Extended)" Q& y1 r- ~: O2 a3 s
9 r1 ^9 Q" c5 pStandard Header :Reserved0 , Version , Protocol Type , Checksum , Reserved1- t8 ^& I$ c) x; d& y- t5 e/ e
Extended Header : Key , Sequence Number
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