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助理工程师
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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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% P6 s, |6 D: I6 j/ ~, `( M1 N 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.% ~6 s' h. _" e- y) K( L
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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.: J! m' i! O, O6 h- X4 G" w
, P- k/ P% F& ~配置和测试结果如下:
, I* G) A" L) h9 NR1#sh run
6 U' v |! @7 R% C- l' `7 t6 Thostname R13 ]9 Y4 B. p8 |! i7 S, }
ipv6 unicast-routing! V* y" T0 q4 U; O
interface Loopback0
; C2 l, K( G. n% R: I no ip address/ T, r0 O* t. L: |
ipv6 address 2002:C0A8:101:1::1/64
) i4 a3 Z/ V, A Pinterface Tunnel0
' S5 _+ [# T" a3 y no ip address
& s+ ^. T$ `5 Z+ H& L9 } no ip redirects8 `* D ]& y2 i$ S. F
ipv6 address 2002:C0A8:101:13::1/64! y1 P: O% d' `5 n8 \
tunnel source Ethernet0
% O2 s$ e4 y" H' R) ]9 _ tunnel mode ipv6ip 6to4% M! a; G; s" V, z
interface Ethernet0- }: U8 _+ `$ T2 E9 S
ip address 192.168.1.1 255.255.255.0' O; Z/ B$ f2 u: }$ i+ Y5 E- f. k t
ipv6 route 2002::/16 Tunnel0* Y5 c: i0 q+ e1 a
R1#sh ipv6 int brief% `0 ^! i/ I1 E$ d: i
Ethernet0 [up/up]
/ w: C) v: U% s& J* I. e n( t unassigned
, s5 b. ~& Y" }& @4 ZLoopback0 [up/up]
( r6 W i9 f8 }7 \ FE80::210:7BFF:FE36:4911 M- ]0 Y4 Z# V- [
2002:C0A8:101:1::1
5 w" v/ u: w" d. t* PTunnel0 [up/up]
; @. l9 L; W2 y3 l9 r6 R$ C% r FE80::C0A8:101
& d) _* O0 d; `0 R3 R 2002:C0A8:101:13::1, j, Q. j) o9 J8 Y' {
Virtual-Access1 [up/up]3 U+ f" ?; \9 P s& y: T C
unassigned
$ @! ~* X9 y9 W: FR1#sh ipv6 route
- z* A5 U2 \. Z- h5 [IPv6 Routing Table - 8 entries& Z2 m# v7 Q& W$ y
Codes: C - Connected, L - Local, S - Static, R -
6 T+ @' H4 M: d; v0 N1 T' z" ]RIP, B - BGP2 z/ K7 _$ Z+ i( G2 j7 t4 f( l
U - Per-user Static route, a+ r/ f- V! z# Q
I1 - ISIS L1, I2 - ISIS L2, IA - ISIS 8 I# G% I% L& d1 t: ?1 q- R
interarea
/ _2 t: p8 [: f# T5 r O - OSPF intra, OI - OSPF inter, OE1 - OSPF 0 C! |! V1 K: F+ O1 \& M; K
ext 1, OE2 - OSPF ext 2
2 `1 Q. A+ M: s. d T6 z' g% XS 2002::/16 [1/0]5 f( F A2 C& d' f
via ::, Tunnel0
2 {8 W' l/ ^0 c" ~$ ]C 2002:C0A8:101:1::/64 [0/0]+ n- B' V: |& @1 r9 m
via ::, Loopback0. \+ f. D3 c- e8 M
L 2002:C0A8:101:1::1/128 [0/0]
7 [4 p& Z" `! x$ k+ _ via ::, Loopback02 b5 i6 V I) R! B" \1 L: u
C 2002:C0A8:101:13::/64 [0/0]
- c4 P/ P' n( a' @ via ::, Tunnel0* z3 W1 X" H7 c( u5 T9 m
L 2002:C0A8:101:13::1/128 [0/0]5 ~0 G2 m' t( r3 W: I0 e! ^/ Q
via ::, Tunnel0
* C" y" x$ {( ?/ |4 CL FE80::/10 [0/0]- ^1 [3 \9 t# q( f" X$ S, U
via ::, Null0
0 t& G* o* H0 M" uL FF00::/8 [0/0]7 c; Z- Y9 k+ Q" K
via ::, Null04 \8 y5 d. X; W8 f$ q
% J& G: b2 x# G) ]
r3#sh run- s# k- g( U: ]
hostname r3, b$ Y) I* w2 I6 S
ipv6 unicast-routing [, h. v9 l; M1 ]: b7 }4 E$ D
interface Loopback04 M& t& U% ]( L# B# L- K8 n
no ip address: V; |2 }* K0 W# ^6 ]+ M
ipv6 address 2002:C0A8:103:3::3/64
9 u# H7 v' j5 uinterface Tunnel0
' y* S h% W( E$ W3 q no ip address
8 z/ z2 m, A& ]$ N3 e+ o; O1 h no ip redirects
1 D8 X3 \* K$ a& m3 l ipv6 address 2002:C0A8:103:13::3/64# C) u9 V! x, ^. I
tunnel source Ethernet0
2 d& i# `* q! y5 d \/ d tunnel mode ipv6ip 6to4
. p$ o0 _ p7 ointerface Ethernet0
- O+ s9 j6 n" a ip address 192.168.1.3 255.255.255.0$ U _& `4 M. F! X4 j) h
ipv6 route 2002::/16 Tunnel0
E4 e6 r9 P$ a3 ~! [; y
( I! @6 ?6 V+ Vr3#sh ipv6 int brief
9 c* f. t L) y& c t; H9 eEthernet0 [up/up]3 \) f9 K& W3 C0 G! W* X9 c- Y
unassigned
& x' Q( _$ F7 z! Y2 E: MLoopback0 [up/up]6 ^" @; D' ]5 g4 A
FE80::200:CFF:FE0A:26BC
4 p" e" h8 L$ U/ d/ M 2002:C0A8:103:3::39 `; C3 l, a, g2 v
Serial0 [administratively
; P! c$ q' D# i& m% Kdown/down]
- q2 c7 s V: z4 y/ _8 _ unassigned( O7 ?8 g8 U5 x3 F. E
Serial1 [administratively - R. k# t6 V, y3 o6 K
down/down]
8 \3 t4 I4 x- _8 P$ k$ ]. N unassigned/ F, e, @) p6 D+ B: L% D
Tunnel0 [up/up]
+ [6 ~3 S6 R5 R/ g, X FE80::C0A8:103$ E) q* _% {( m; X# l
2002:C0A8:103:13::3; [; m8 Y2 B9 b/ y0 e9 _8 |
Virtual-Access1 [up/up]
) W" H4 l2 f4 P. A; Y9 E9 Z unassigned
7 U# o& F' g5 Q9 H1 ~5 y- X; e7 L. wr3#sh ipv6 route
8 _* J, {5 {5 y0 O- w9 ?7 dIPv6 Routing Table - 7 entries. T3 q% D( [/ u* i$ T7 o
Codes: C - Connected, L - Local, S - Static, R -
5 o# F! b, W3 w4 g# ^0 u0 ]( v3 P# D5 vRIP, B - BGP
2 ^" }5 S' \8 j& q3 Y! }% T+ z U - Per-user Static route
' H# x6 P3 h8 ~+ L, m' s K' q I1 - ISIS L1, I2 - ISIS L2, IA - ISIS
$ Q+ Y$ ~/ L; b% F7 s8 e5 @interarea# f$ X- i' @8 j* _% S7 y Y
O - OSPF intra, OI - OSPF inter, OE1 - OSPF
- m K/ B3 m0 }! I. O) B* vext 1, OE2 - OSPF ext 2
/ K6 H7 p+ Q. M7 |1 _0 Y' P! S z0 NS 2002::/16 [1/0]
- |) l- P Q1 S( R" _$ B via ::, Tunnel0& G/ d9 j. ~" r: _6 U
C 2002:C0A8:103:3::/64 [0/0]3 ^' U4 c0 [, @0 f- x* e8 O1 y, P' h! \
via ::, Loopback0
4 b, W; O# O8 T8 v+ ?+ L# UL 2002:C0A8:103:3::3/128 [0/0]
' X; e. \9 p) j( F- B via ::, Loopback0
# T7 k; Z: M) ?& u4 L7 \" I* E. @C 2002:C0A8:103:13::/64 [0/0]
% T8 C n" Z7 d$ V- L) S via ::, Tunnel04 E7 D- g6 _& t' w% W9 S7 s" J
L 2002:C0A8:103:13::3/128 [0/0]+ n) F! D) [* a! ~! s! o2 G+ D$ v
via ::, Tunnel0
" Z0 M, Q. b4 pL FE80::/10 [0/0]' g& e6 Q/ K! ^- k6 _4 r0 a2 O( {
via ::, Null0
0 z$ j6 b; `0 @8 h: i" n0 A! m+ dL FF00::/8 [0/0]
% e% A4 ?4 P: H0 v via ::, Null0
. | E# V" e/ i$ F在R1上测试直连的ipv6 tunnel接口:7 J' Z$ N8 O% {; V7 @0 r8 V
R1#ping ipv6 2002:c0a8:103:13::33 c" n4 q2 X% \ a, d4 W
Type escape sequence to abort.
+ I5 c% J: B4 X: q/ u( |/ tSending 5, 100-byte ICMP Echos to % t7 Y1 B; {( D& e8 e) _
2002:C0A8:103:13::3, timeout is 2 seconds:4 i$ g& G e3 Q( ]2 T
!!!!!" v0 M( T6 c+ K
Success rate is 100 percent (5/5), round-trip
4 K& R! @$ d9 Hmin/avg/max = 8/10/16 ms
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$ j7 q! ^: ~2 S+ E/ L8 [6 w6 y# b" G在R1上测试到R3的ipv6 loopback0接口(非直连):
1 D; n ]/ \( s& ^5 iR1#ping ipv6 2002:c0a8:103:3::3 # V' Z# W9 Q0 N, Q) m. `+ C
Type escape sequence to abort.$ q/ Z, g+ c" b; V1 n6 m# D: C
Sending 5, 100-byte ICMP Echos to
1 g7 l1 }: a9 K: y% `1 ]8 E+ ]5 Z1 G2002:C0A8:103:3::3, timeout is 2 seconds: B8 |% e9 t( @4 b2 j! M9 [
!!!!!
: p& l ?+ r I: h0 ?) rSuccess rate is 100 percent (5/5), round-trip
4 r+ L4 w" r; u' y3 Ymin/avg/max = 8/12/16 ms3 b0 I$ M' o) j# Q: V$ H; J! M
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m& G( R7 B/ i& h- c ?8 a (亚威科技 转载请注明出处) 1 u% Y: z9 C8 d" m7 }) j( y
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