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助理工程师
 
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/ [9 s N* c3 o' g# e 说明:此案例使用两台cisco2500路由器,IOS (tm) 2500 Software (C2500-IS-L), Version 12.2(15)T9,利用ip v4主干加ipv6的6to4 tunnel结合ipv6静态路由,就能实现两个远程ipv6子网的互连互通.
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- s# o, h% S( B4 {" q( }$ m- z 拓扑说明:使用两台路由器的e0接口互连仿真ipv4的主干,使用loopback0仿真两个远程的ipv6子网,6to4tunnel必须在所有的ipv6子网使用标准的ipv6地址前缀(2002::/16)进行编址.9 o( K' z2 P' h& s, r) c/ s
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在两个端点建立tunnel时,必须使用本地路由器的ipv4接口的ip地址结合2002前缀来对本路由器的tunnel接口做编址.例如R1的e0:192.168.1.1,则R1的tunnel接口的ipv6地址一定要包含此地址的16进制格式,即2002:C0A8:101:…,其中C0A8:101即为e0接口ip地址的16进制.6 b( v7 K' I# q
; |7 K- f b4 h3 T* X3 y9 G配置和测试结果如下:
* A4 C" @0 E6 O* m% F$ C2 E {R1#sh run6 J& n4 H/ C7 y0 a
hostname R1
8 s% @1 h0 R J0 ?: wipv6 unicast-routing. D5 P! s$ Z" r9 ~* M2 n! Q5 o
interface Loopback0
2 c6 N6 D; i& d- C" Z no ip address1 q" v+ h3 i$ U; e
ipv6 address 2002:C0A8:101:1::1/64
( ]% A" J" p% ?interface Tunnel0) b4 ~/ ]" U5 x1 D
no ip address
' z" h6 {5 N7 y2 Q& M9 I, f% T no ip redirects* w4 m" @2 g' P/ C" i5 J% u/ P
ipv6 address 2002:C0A8:101:13::1/64
1 [$ P* V+ Z0 H0 ^+ }- q& R tunnel source Ethernet07 e6 B/ I& r" S) D
tunnel mode ipv6ip 6to43 e$ }9 M2 h) {2 E
interface Ethernet0) w" Q$ m# T! J8 r4 A
ip address 192.168.1.1 255.255.255.0
; H! r x0 Z0 O1 T7 A1 k1 w# fipv6 route 2002::/16 Tunnel0# i1 j& m$ _( M) \" B: }
R1#sh ipv6 int brief- r! @. f9 O, g+ M- h; k: V/ B. F/ ]( y& b
Ethernet0 [up/up]
' d/ }' n9 p; G, P8 q5 n unassigned) C+ B. x6 P0 U5 C* A7 A
Loopback0 [up/up]
1 B; A0 \3 [% s' l5 X7 l, w FE80::210:7BFF:FE36:491
2 m5 }* O; Q% W2 b* t% m 2002:C0A8:101:1::1
( Q, X* c. M0 G6 GTunnel0 [up/up]! E/ [2 r: |& A' R0 _1 U* J( R
FE80::C0A8:101
& h& \: U; m& k9 } ?; W 2002:C0A8:101:13::17 X0 t6 B4 Q. }& n$ x! [* I
Virtual-Access1 [up/up], {" |# k( x+ S- s
unassigned M/ X" {$ a, q! @4 A- i6 c
R1#sh ipv6 route
6 \0 G0 {% @8 f" D# `$ |/ U2 gIPv6 Routing Table - 8 entries
( d" w! J) h# H6 T) s! oCodes: C - Connected, L - Local, S - Static, R - _6 S3 v' g1 G. r! x
RIP, B - BGP2 e+ \$ |7 H6 l7 }3 R
U - Per-user Static route+ c, W. A* k5 T4 Y
I1 - ISIS L1, I2 - ISIS L2, IA - ISIS % q, N5 M4 O G% R- K% M
interarea! g1 `! N# T! m$ K% j( T9 {
O - OSPF intra, OI - OSPF inter, OE1 - OSPF
* L, ^" l6 @" `$ O3 J9 ^2 e2 Lext 1, OE2 - OSPF ext 2
) L" t! j* \* [ R5 C8 P; }; BS 2002::/16 [1/0]. i; Y9 f: N) `! V4 b- m
via ::, Tunnel0
/ G% M5 O8 a) a8 J0 R6 a0 ?% oC 2002:C0A8:101:1::/64 [0/0]; f3 v4 q7 V5 t
via ::, Loopback0% [5 T5 P$ @3 ?
L 2002:C0A8:101:1::1/128 [0/0]
$ |- t% r9 ^+ m3 y9 E via ::, Loopback07 f; N8 L- J A# Y6 \/ @3 D
C 2002:C0A8:101:13::/64 [0/0]' I* d( P: l6 D5 w1 d" U7 M+ L# B
via ::, Tunnel0! V# Z! X* P$ A7 s3 c
L 2002:C0A8:101:13::1/128 [0/0]
: R; [; d ~* u5 A6 ?" t# ^/ M4 V* {# E via ::, Tunnel0& |+ U% K- w. M! ?
L FE80::/10 [0/0]7 a5 l* n, t* c- S; K0 d" l
via ::, Null0
8 n" u4 Q' {$ v7 y+ v$ Z! dL FF00::/8 [0/0]7 b4 U# ?! p' g0 D% S) @& z
via ::, Null08 S' q0 r- S' d/ ?! [& Y) u
5 c4 T4 E6 t& _) E' r1 c. hr3#sh run5 ~& g. Q1 f1 R
hostname r3
' Q6 H6 T" V' \2 Jipv6 unicast-routing
# X* f* R. g6 @+ r; D6 _( pinterface Loopback0
+ I* [- E7 l4 Q9 G! F6 Z no ip address4 J0 A# a2 p0 e7 [# N, N6 u
ipv6 address 2002:C0A8:103:3::3/64
{/ {; f" e Hinterface Tunnel0. C2 X0 K% w2 N& x, J" f
no ip address
' H* c( c {6 `( j5 n no ip redirects$ Z$ d5 v2 {( u, n& d( J4 v+ [
ipv6 address 2002:C0A8:103:13::3/64
3 g9 f' D8 p3 ^/ _/ s tunnel source Ethernet0
! K% ?% r9 F# ^ tunnel mode ipv6ip 6to4
* @' S" T/ g9 ^8 w6 Uinterface Ethernet0/ G! [: T5 W) u! Y8 x0 M
ip address 192.168.1.3 255.255.255.0" q# K1 |7 @7 m, e2 d2 X3 ?1 n9 o' V
ipv6 route 2002::/16 Tunnel0$ G- g4 C: L: n- e4 X; j
+ q8 H7 d2 ~$ Q# d' yr3#sh ipv6 int brief
6 K J& M" [8 q1 \( L+ ]; J" _Ethernet0 [up/up]9 p* C* {" B0 A) e. \
unassigned5 ?$ t" q* R; x( ^7 k: m! O
Loopback0 [up/up]
5 e: Q R! ~( \4 o: V1 \& w2 s/ ?+ r FE80::200:CFF:FE0A:26BC: R' S7 ~. d4 s
2002:C0A8:103:3::3
- G& r1 } u+ O3 p% q9 WSerial0 [administratively
+ y" x7 v: w$ jdown/down]: d/ Q- p- U0 b: \# N
unassigned1 P0 F& z: b! ?9 a4 F' @ T
Serial1 [administratively ( E* m2 E$ c$ u( n
down/down]
; I* L8 Y, b4 t/ q% U0 c unassigned. M. v3 W7 c5 {( ?$ w- t3 y' a* q. L
Tunnel0 [up/up]
# \, _4 |( |! {" s- z0 A FE80::C0A8:103
* R) e. |6 \9 H0 K 2002:C0A8:103:13::3
7 e5 s( @! U# p' e# d. r1 nVirtual-Access1 [up/up]! `4 C7 l2 Q$ J; b- ~" U
unassigned1 e% q7 d: _" B! o, c3 ]# ^, j
r3#sh ipv6 route4 Y, N- t. d( L: W1 W1 n7 j2 W
IPv6 Routing Table - 7 entries; f) S, m: h" h5 L) c% |
Codes: C - Connected, L - Local, S - Static, R - & w! ^% V1 q( Y( h. B7 p
RIP, B - BGP- H$ @# Y8 c! C# Z3 B9 ]% e
U - Per-user Static route3 T# I8 W$ S% n; B# P
I1 - ISIS L1, I2 - ISIS L2, IA - ISIS
: U7 o$ X5 O! C3 o' Linterarea4 I# D; n. {2 u8 h
O - OSPF intra, OI - OSPF inter, OE1 - OSPF ! _% n6 R2 q2 s) v b, e$ Q' g
ext 1, OE2 - OSPF ext 2/ ~8 k8 k @/ [8 f8 W8 k/ R) N
S 2002::/16 [1/0]
0 u) m0 p8 a+ N via ::, Tunnel0
5 T+ x" ]) f2 i3 Y0 M6 HC 2002:C0A8:103:3::/64 [0/0]4 X0 ^8 \8 Q% e3 \( y
via ::, Loopback0
2 V5 Q! z# B5 z3 _' kL 2002:C0A8:103:3::3/128 [0/0]
7 o4 K3 N& P. F. k" N4 [- ~: X! S via ::, Loopback08 M# u- W2 c' r1 ]0 F
C 2002:C0A8:103:13::/64 [0/0]
1 F' E- x. X% d* D via ::, Tunnel0
' L0 L) e0 o- c$ P1 ]! C6 F. E( @L 2002:C0A8:103:13::3/128 [0/0]
/ @) |# Q, m) i1 _9 A, [ via ::, Tunnel0$ R7 _) [: C9 m5 A" z- }. s
L FE80::/10 [0/0]
% m: [8 D! J5 W8 k; }2 c1 u via ::, Null0
3 T) O3 S+ f. |L FF00::/8 [0/0]# S ~8 g/ T7 f8 y0 D* x' T% F
via ::, Null05 V1 I& I& c1 Y) v- o
在R1上测试直连的ipv6 tunnel接口:1 x# M0 [8 ?0 k+ v9 m7 L i
R1#ping ipv6 2002:c0a8:103:13::3
& V- W' b% a# k2 ~0 U* UType escape sequence to abort.
3 M- H$ o% y( @' TSending 5, 100-byte ICMP Echos to
9 |5 U. G' V% c X) H2002:C0A8:103:13::3, timeout is 2 seconds:
& \7 ^/ Q3 h! ]: S0 ?: i; `+ S!!!!!
, s& H& H ]; b2 z' u zSuccess rate is 100 percent (5/5), round-trip
J1 M9 Q6 ^1 q/ h5 emin/avg/max = 8/10/16 ms) ?3 a3 m2 I m( F5 w; q9 q
7 ^/ r2 r- i" B& D) k在R1上测试到R3的ipv6 loopback0接口(非直连):$ [ L' D& D V1 d: H5 Z% M
R1#ping ipv6 2002:c0a8:103:3::3
& g9 s3 y5 O" HType escape sequence to abort.
2 Z2 |- d$ P5 ^6 r$ KSending 5, 100-byte ICMP Echos to
0 |8 L) x" k& p5 ?2002:C0A8:103:3::3, timeout is 2 seconds:
% |! ^$ {( e c!!!!!
, S( }* W& g9 r1 x) M4 a) U2 Q ESuccess rate is 100 percent (5/5), round-trip c/ n* i; g) W
min/avg/max = 8/12/16 ms
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s, Z) z& D/ j (亚威科技 转载请注明出处) 1 l4 v, d7 W- f/ @. t
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