言归正传，OSPF和RIP都配置好后执行重发布
& S2 [5 ^2 }- C( {然后很自然地产生了次优路径：1 |2 V3 N3 p6 |6 Q @! h& L
发布后由于OSPF的管理距离小于RIP，所以R2上到192.168.6.0网段的下一跳指向了R4而不是R1，为了解决这个问题，配置了发布列表，R2和R3配置如下：, U Z$ x3 D# F i
R2:% v2 i0 h# t7 r' s f/ T; ?1 i, g' w/ d
router ospf 1
; t: H* N/ I+ U# ?log-adjacency-changes, u( ?2 Y# Z, _: K) Q9 V) s; ^; ~
redistribute rip subnets
, C1 {1 \. E) Snetwork 192.168.3.0 0.0.0.255 area 0
. D. R" F7 j6 {) [: P( a5 H8 x. Sdistribute-list 2 in$ a/ B4 y4 S& h
! [+ r# f3 f, {4 x* ?6 i
router rip0 K% T+ [& {. O/ B2 T9 s3 v
version 2( n$ f. \- N; s7 X% N- T4 S
redistribute ospf 1 metric 5
2 a# t) H8 \* i+ Wnetwork 192.168.2.0 R' ]* d- U! D; D- o% C! R: ~
distribute-list 1 in
6 p$ c K: p) w% Kno auto-summary
( g0 h3 @# q# ^!
/ ?9 Z& z# V3 h& N' K& q/ Sip http server6 h: B* ]$ u. z d" P5 k- X
!
T, x5 J3 D; ~/ \0 f!
: h, c# a. b* ~ E!' e, g" ]- o8 I& ]& {5 o( [
access-list 1 permit 192.168.1.0 0.0.0.255
: b d H% j7 zaccess-list 1 permit 192.168.6.0 0.0.0.255
# M2 b% R( L* Y, @( eaccess-list 2 permit 192.168.4.0 0.0.0.255
; G. O' N" L2 g. c4 u3 _9 maccess-list 2 permit 192.168.5.0 0.0.0.2556 @' w) t" \" u
4 w) J9 l/ G( ]0 U# {
R3:# j' R7 ], H* ~, ^% t' c+ D% m. [
router ospf 1
( S5 w; D! ~# E' x9 R% }$ jlog-adjacency-changes' A3 f: b+ `% `2 R
redistribute rip subnets
* I8 {/ p; H4 S: y8 i2 W R/ Q5 p# qnetwork 192.168.5.0 0.0.0.255 area 0
! z+ r2 [2 i0 b+ Ndistribute-list 2 in
) m) d% u) J' X5 v" y1 @! J8 H4 }0 V: q4 Q) V. @% d: @1 N
router rip
9 ?# }* ], Y+ G4 N* {version 2, }, }' p* G1 C& @5 L$ e: M8 m
redistribute ospf 1 metric 5
2 |- l9 [ p" h& snetwork 192.168.6.0 H/ m! d [+ T X
distribute-list 1 in5 {( V9 M: c& Z0 ?
no auto-summary
G; u% w. T7 z K!
/ n& x% |1 d1 i% \: |- Bip http server
$ _" F* V1 {. _6 g5 j! h8 m!
# H* {3 ~8 s, U: p! ~!
8 T8 P7 i) g% q5 t!
) X2 N1 |% ]4 g* }4 Uaccess-list 1 permit 192.168.2.0 0.0.0.255
! f2 q, P. \, ]9 aaccess-list 1 permit 192.168.1.0 0.0.0.2556 Y! X9 [9 K+ D* p' N9 o& J! O
access-list 2 permit 192.168.3.0 0.0.0.255% D! @4 a* `+ N% _" }2 U
access-list 2 permit 192.168.4.0 0.0.0.255
$ }$ l; ~1 u9 m9 U7 F* g, |
/ Q$ h$ p% P8 q( x# w6 Y我理解的是只有访问控制列表1允许的地址才能发布进入RIP进程，列表2允许的地址可以发布进入ospf进程，不明白的是为什么R1、R4和R5还能学到不允许的地址？不是在重发布路由器那就给拦住了吗？& ]" {$ V3 O% Z7 a/ Y2 e
R1:, D' S: \! i2 O! a% J. d8 b
R1#sh ip rou
/ v- `, @2 G2 [Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP3 m0 H' y1 \5 }+ h) s
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
0 E& z' E0 a7 r) [8 m9 g4 r N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
' m" @3 k; j6 b, n n E1 - OSPF external type 1, E2 - OSPF external type 2: i% X/ H5 K3 ^6 y& r
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
N( R" m" t( w+ k7 c. R0 E ia - IS-IS inter area, * - candidate default, U - per-user static route
8 L1 [! T! s% \7 Q& ?* m C0 g o - ODR, P - periodic downloaded static route: D$ {8 h! `( O
. }& u5 x, Z1 w3 l. P [$ dGateway of last resort is not set
5 w; a9 G. T) X4 a
* A4 [& t6 [5 u6 VR 192.168.4.0/24 [120/5] via 192.168.6.2, 00:00:02, FastEthernet1/0
/ X( l+ R V2 H* g( w1 [, E [120/5] via 192.168.2.2, 00:02:20, FastEthernet0/02 L6 O4 L( q! `# w$ S* R
R 192.168.5.0/24 [120/5] via 192.168.6.2, 00:00:02, FastEthernet1/0* r0 y) P: L: U( \' k- a ?0 w) s
[120/5] via 192.168.2.2, 00:02:20, FastEthernet0/0$ `. Q( _5 ^# p! f- i
C 192.168.6.0/24 is directly connected, FastEthernet1/0- x3 z0 i: d0 a7 n* l. I4 V/ c, a8 ]
C 192.168.1.0/24 is directly connected, Loopback09 Q6 \. ~( u K
C 192.168.2.0/24 is directly connected, FastEthernet0/0
( ^. j* o; `3 e5 ]9 Y2 e \+ u; UR 192.168.3.0/24 [120/5] via 192.168.6.2, 00:00:02, FastEthernet1/0
3 L+ P4 [" F- E1 l! J6 a w [120/5] via 192.168.2.2, 00:02:20, FastEthernet0/0% d8 D) o. F! b5 X6 L+ o! m
5 e6 V8 o5 s( `, `
R4: c/ y. K# u6 ~; y
R4#sh ip rou# P' L' H* G2 n& ^2 o {
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
/ f! v+ X P& U6 O9 G9 u5 U4 y D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area ; r, p" d* H( G) Q) G
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
H5 ] p6 F0 ^2 b4 c E1 - OSPF external type 1, E2 - OSPF external type 2
& N% N8 i6 s* N/ W i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
9 z2 G6 n8 G- W9 Y" e4 V0 t& _0 a; L ia - IS-IS inter area, * - candidate default, U - per-user static route
" ~' B) F \4 i' V- N7 b+ k L o - ODR, P - periodic downloaded static route, Q7 F9 ]# P0 v+ d: u& m
2 H0 j' R- t- @, RGateway of last resort is not set+ m" ^; C- |5 x% C9 }
5 `5 r! _; y7 _0 G. ]9 n
C 192.168.4.0/24 is directly connected, FastEthernet0/0
" v3 n. z8 Z1 H7 y" fO 192.168.5.0/24 [110/65] via 192.168.4.2, 00:16:40, FastEthernet0/0
) ]: a; P4 i* ?O E2 192.168.6.0/24 [110/20] via 192.168.3.1, 00:05:59, Serial1/0$ n! u+ n9 Z1 X
O E2 192.168.1.0/24 [110/20] via 192.168.3.1, 00:05:59, Serial1/09 Q" v8 a% I5 ^( z* O
O E2 192.168.2.0/24 [110/20] via 192.168.3.1, 00:05:59, Serial1/0& g0 T' _" G( ^- @
C 192.168.3.0/24 is directly connected, Serial1/0
# y2 @5 m- Q; V. Q. c& b1 e) X- h+ o
R5:
0 x+ ? v @- m8 ?% M+ UR5#sh ip rou
. m5 D; }4 n* v& U1 `Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
" h8 _8 z7 v0 Y4 o$ L0 a# w D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
* O: j6 M7 [5 E8 u- o N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
6 C# t- d2 Y% m* z" { E1 - OSPF external type 1, E2 - OSPF external type 2 j) l/ {4 B1 j; i0 ~! P
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-22 Q, l4 U4 V! h2 C0 \
ia - IS-IS inter area, * - candidate default, U - per-user static route" B O5 f4 m* C, c: c9 y
o - ODR, P - periodic downloaded static route
7 J8 W1 @, A0 N3 K0 s- u' o# ^
, p& `* Y1 [- A9 {; T" MGateway of last resort is not set
& U; c9 H& }) X5 ^# T; z( C6 N P) A; E+ E- Z- n- u; n
C 192.168.4.0/24 is directly connected, FastEthernet0/02 W6 q3 V* f2 j- Y3 Y! Z! U1 p9 P l
C 192.168.5.0/24 is directly connected, Serial1/04 J& @6 f2 o2 p" }) Y7 v
O E2 192.168.6.0/24 [110/20] via 192.168.5.1, 00:26:47, Serial1/03 @1 t. Z$ B+ n& s
O E2 192.168.1.0/24 [110/20] via 192.168.5.1, 00:26:48, Serial1/02 y% M& }. H+ E6 H( }
O E2 192.168.2.0/24 [110/20] via 192.168.5.1, 00:26:48, Serial1/0
; P0 w9 x/ ~" C, sO 192.168.3.0/24 [110/65] via 192.168.4.1, 00:33:54, FastEthernet0/04 G C g( c9 I! S) C
" U) p, z. Z( G- C求高手解答下我的疑问.... |
|
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