MPLS系列实验文档 NO.2

MPLS

MPLS系列实验文档 NO.2
Traceroute In MPLS VPN
参考（原文档）（原文档）The Traceroute Command in MPLS

TOPO如下：

基本配置如下：

R1完整配置

!
hostname r1
interface Loopback0
ip address 1.1.1.1 255.255.255.255
!
interface FastEthernet2/0
ip address 12.1.1.1 255.255.255.0
duplex auto
speed auto
!
router ospf 10
log-adjacency-changes
network 0.0.0.0 255.255.255.255 area 0
!

R2完整配置
!
hostname r2

ip vrf a

rd 1:100

route-target export 1:100

route-target import 1:100

!

ip cef

interface Loopback0

ip address 2.2.2.2 255.255.255.255

!

interface FastEthernet0/0

ip vrf forwarding a

ip address 12.1.1.2 255.255.255.0

duplex auto

speed auto

!

interface FastEthernet2/0

ip address 23.1.1.2 255.255.255.0

duplex auto

speed auto

tag-switching ip

!

router ospf 10

log-adjacency-changes

network 0.0.0.0 255.255.255.255 area 0

!

router ospf 100 vrf a

log-adjacency-changes

redistribute bgp 1 subnets

network 0.0.0.0 255.255.255.255 area 0

!

router bgp 1

no synchronization

bgp log-neighbor-changes

neighbor 5.5.5.5 remote-as 1

neighbor 5.5.5.5 update-source Loopback0

no auto-summary

!

address-family vpnv4

neighbor 5.5.5.5 activate

neighbor 5.5.5.5 send-community extended

no auto-summary

exit-address-family

!

address-family ipv4 vrf a

redistribute ospf 100 match internal

no auto-summary

no synchronization

exit-address-family

!

R3完整配置

!
hostname r3
!
ip cef

interface Loopback0

ip address 3.3.3.3 255.255.255.255

!

interface FastEthernet0/0

ip address 23.1.1.3 255.255.255.0

duplex auto

speed auto

tag-switching ip

!

interface FastEthernet2/0

ip address 34.1.1.3 255.255.255.0

duplex auto

speed auto

tag-switching ip

!

router ospf 10

log-adjacency-changes

network 0.0.0.0 255.255.255.255 area 0

!

R4完整配置
!
hostname r4
!
ip cef

interface Loopback0

ip address 4.4.4.4 255.255.255.255

!

interface FastEthernet0/0

ip address 34.1.1.4 255.255.255.0

duplex auto

speed auto

tag-switching ip

!

interface FastEthernet2/0

ip address 45.1.1.4 255.255.255.0

duplex auto

speed auto

tag-switching ip

!

router ospf 10

log-adjacency-changes

network 0.0.0.0 255.255.255.255 area 0

!

R5完整配置
!
hostname r5
!
ip vrf a

rd 1:100

route-target export 1:100

route-target import 1:100

!

ip cef

!

interface Loopback0

ip address 5.5.5.5 255.255.255.255

!

interface Loopback10

no ip address

!

interface FastEthernet0/0

ip address 45.1.1.5 255.255.255.0

duplex auto

speed auto

tag-switching ip

!

interface FastEthernet2/0

ip vrf forwarding a

ip address 56.1.1.5 255.255.255.0

duplex auto

speed auto

!

router ospf 10

log-adjacency-changes

network 0.0.0.0 255.255.255.255 area 0

!

router ospf 100 vrf a

log-adjacency-changes

redistribute bgp 1 subnets

network 0.0.0.0 255.255.255.255 area 0

!

router bgp 1

no synchronization

bgp log-neighbor-changes

neighbor 2.2.2.2 remote-as 1

neighbor 2.2.2.2 update-source Loopback0

no auto-summary

!

address-family vpnv4

neighbor 2.2.2.2 activate

neighbor 2.2.2.2 send-community extended

no auto-summary

exit-address-family

!

address-family ipv4 vrf a

redistribute ospf 100

no auto-summary

no synchronization

exit-address-family

!

R6完整配置
!
hostname r6
!
interface Loopback0
ip address 6.6.6.6 255.255.255.255
!

interface FastEthernet0/0

ip address 56.1.1.6 255.255.255.0

duplex auto

speed auto

!

router ospf 100

log-adjacency-changes

network 0.0.0.0 255.255.255.255 area 0

!

测试：

（1）从r1traceroute 6.6.6.6

r1#traceroute

Protocol [ip]:

Target IP address: 6.6.6.6

Source address: 1.1.1.1

Numeric display [n]:

Timeout in seconds [3]:

Probe count [3]: 1

Minimum Time to Live [1]:

Maximum Time to Live [30]:

Port Number [33434]:

Loose, Strict, Record, Timestamp, Verbose[none]:

Type escape sequence to abort.

Tracing the route to 6.6.6.6

1 12.1.1.2 44 msec

2 23.1.1.3 [MPLS: Labels 18/21 Exp 0] 248 msec
3 34.1.1.4 [MPLS: Labels 17/21 Exp 0] 212 msec
4 56.1.1.5 [MPLS: Label 21 Exp 0] 136 msec
5 56.1.1.6 248 msec

R1并没有运行mpls，它是怎么跟踪到标签的（注意有的IOS版本可以识别，有的不能识别）我们抓一下包，看看R1收到的ICMP包中是否带有标签的标识，注意请使用比较新的抓包工具，这样才能查看到MPLS Extensions

附件: 您所在的用户组无法下载或查看附件

收藏分享评分