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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.
7 I9 ~* o; ?7 |/ D3 ~0 H0 S5 B/ E% f5 j! Z' [
0 [+ U( z6 n6 w
R5 configuration :- v$ t* b; O& h. H+ |2 Z5 f' [
int gig0/0
5 C& {+ T6 M$ N; V$ k% cip address dhcp7 C1 j# s) n- S4 w0 a6 _
This interface not getting dhcp ip address from R4. So even though OSPF configuration was like 0.0.0.0+ u( S; u, f! X0 a2 d$ f9 V
0.0.0.0 area 0 , because this interface does not get correct ip address from DHCP it can’t participate in
) B4 I6 i* K7 F: M/ m+ eOSPF.* K! q' |/ s$ z4 [
R4 configuration :-5 p& O6 x+ ]6 `' D. `5 Y& ]
ip dhcp exlude address
, s1 u! e6 A. X8 E% Y a! bip dhcp pool ine0 K8 o8 }; @* E
network x.x.x.x x.x.x.x* O h$ L l5 Z! P
i think default router command was missing here . not sure
% [5 _& y: | |but$ C8 F9 ?$ _8 e3 X. C8 Z5 N. n
Int gig0/0
. j9 q ?! U n% V" U& _. e$ D; Y9 |ip address dhcp .' `4 d. B. v7 F: H
This interface on R4 should have ip address configured on it instead of ” ip address dhcp ” . Hence its not7 [. U' w2 r* o3 @
able to provide dhcp lease address to R5.3 L% l- X' R/ J/ w/ `) n
R4 also had ospf configured as network 0.0.0.0 0.0.0.0 area 0. So all interface can participate if they are- S; `7 K* s: Z4 j: v- x6 b
up and if they have ip address.
! f5 e, a1 ^8 t- ^+ j6 g3 EBut because R5 interface connected to R4 could not obtail correct dhcp ip address from R4 due to DHCP
! f( E7 E: _. O: rissue they wont form ospf neighborship." m# J% {. h' V. P$ O1 v/ k" ~
So correct answer is DHCP issue between R5 & R4. |
208#
2018-9-28 12:07:06
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