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助理工程师
 
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发表于 2018-9-28 12:07:06
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so , 2018.9.05 has a different answer, C, DHCP issue. Which one is correct? I don't think the question any differently.
5 s/ q0 ^; L: h* j4 ~! w( b
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4 b" G/ ~ h8 H. B# ~9 I' ^1 h9 FR5 configuration :-
! b4 ~6 |: Z; k+ x$ U# `int gig0/0* p7 P( W! f4 i9 u" \
ip address dhcp( Y2 j6 c9 X$ ~) k
This interface not getting dhcp ip address from R4. So even though OSPF configuration was like 0.0.0.0# V0 s% R, R; L4 K
0.0.0.0 area 0 , because this interface does not get correct ip address from DHCP it can’t participate in
1 B4 o: J$ M: U4 ` ?2 ^/ HOSPF.4 c1 _0 |: b, z" z* ? r. ^* S
R4 configuration :-
7 j) X1 I7 }* p8 Dip dhcp exlude address
5 u8 W# o# C7 G* rip dhcp pool ine0 Q9 H4 E" a P
network x.x.x.x x.x.x.x# d) ^$ o m8 K3 P+ @ R- s
i think default router command was missing here . not sure
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) w2 S( X+ s& u: DInt gig0/0
9 a7 r8 Z7 Y! L' S& K. Eip address dhcp .2 C7 ]: R' u3 k X, R+ K0 Z
This interface on R4 should have ip address configured on it instead of ” ip address dhcp ” . Hence its not
. _0 Q& w1 P9 T$ nable to provide dhcp lease address to R5.
4 \7 b# n1 V$ ^5 J' A. XR4 also had ospf configured as network 0.0.0.0 0.0.0.0 area 0. So all interface can participate if they are
1 |2 c3 n4 |/ Q2 S6 ~) xup and if they have ip address.7 h! O$ P$ U( H1 `' \
But because R5 interface connected to R4 could not obtail correct dhcp ip address from R4 due to DHCP
% r* @7 ~. @0 G) y" T2 hissue they wont form ospf neighborship.- m, {& v1 j- |# f+ B5 T4 u1 _; ~
So correct answer is DHCP issue between R5 & R4. |
208#
2018-9-28 12:07:06
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