[实例]H&M SH office 2 IP地址段扩容

[实例]H&M SH office 2 IP地址段扩容

环境如图:

SH office 2以前使用10.200.4.0网段,现需求扩大IP 地址段.

方法1:更改mask,但这个会影响到目前所有设备的更改及地址规划等问题

方法2: 添加一个新的IP地址段给sh office 2使用

现在我们就来实现方法2

1-构建MPLS网络

SH office 2与 SH office1 通过 MPLS 连接,R6有环回口6.6.6.6

R1-R4跑的是静态路由 <模拟现状>

R6-R5 跑得是OSPF

1-1察看VRF信息

R4#sh ip vrf detail

VRF mpls14 (VRF Id = 1); default RD 1:1; default VPNID <not set>

Interfaces:

Fa0/1

VRF Table ID = 1

Export VPN route-target communities

RT:16:16

Import VPN route-target communities

RT:16:16

No import route-map

No export route-map

VRF label distribution protocol: not configured

VRF label allocation mode: per-prefix

R4#sh ip vrf interfaces

Interface IP-Address VRF Protocol

Fa0/1 14.1.1.4 mpls14 up

1-2察看VRF路由

R4#sh ip route vrf mpls14

Gateway of last resort is 14.1.1.1 to network 0.0.0.0

S* 0.0.0.0/0 [1/0] via 14.1.1.1, FastEthernet0/1

6.0.0.0/32 is subnetted, 1 subnets

B 6.6.6.6 [200/2] via 5.5.5.5, 00:11:54

14.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C 14.1.1.0/24 is directly connected, FastEthernet0/1

L 14.1.1.4/32 is directly connected, FastEthernet0/1

56.0.0.0/24 is subnetted, 1 subnets

B 56.1.1.0 [200/0] via 5.5.5.5, 00:11:54

R5#sh ip route vrf mpls56

Gateway of last resort is 4.4.4.4 to network 0.0.0.0

B* 0.0.0.0/0 [200/0] via 4.4.4.4, 00:12:32

6.0.0.0/32 is subnetted, 1 subnets

O 6.6.6.6 [110/2] via 56.1.1.6, 00:12:48, FastEthernet0/0

56.0.0.0/8 is variably subnetted, 2 subnets, 2 masks

C 56.1.1.0/24 is directly connected, FastEthernet0/0

L 56.1.1.5/32 is directly connected, FastEthernet0/0

R4#sh ip protocols vrf mpls14

*** IP Routing is NSF aware ***

Routing Protocol is "bgp 1"

Outgoing update filter list for all interfaces is not set

Incoming update filter list for all interfaces is not set

IGP synchronization is disabled

Automatic route summarization is disabled

Redistributing: static

Maximum path: 1

Routing Information Sources:

Gateway Distance Last Update

Distance: external 20 internal 200 local 200

R5#sh ip protocols vrf mpls56

*** IP Routing is NSF aware ***

Routing Protocol is "ospf 56"

Outgoing update filter list for all interfaces is not set

Incoming update filter list for all interfaces is not set

Router ID 56.1.1.5

It is an area border and autonomous system boundary router

Redistributing External Routes from,

bgp 1, includes subnets in redistribution

Number of areas in this router is 1. 1 normal 0 stub 0 nssa

Maximum path: 4

Routing for Networks:

56.1.1.0 0.0.0.255 area 0

Routing Information Sources:

Gateway Distance Last Update

6.6.6.6 110 00:14:15

Distance: (default is 110)

Routing Protocol is "bgp 1"

Outgoing update filter list for all interfaces is not set

Incoming update filter list for all interfaces is not set

IGP synchronization is disabled

Automatic route summarization is disabled

Redistributing: ospf 56

Maximum path: 1

Routing Information Sources:

Gateway Distance Last Update

Distance: external 20 internal 200 local 200

1-3察看LFIB

R5#sh mpls forwarding-table

Local Outgoing Prefix Bytes Label Outgoing Next Hop

Label Label or Tunnel Id Switched interface

500 Pop Label 4.4.4.4/32 0 Se1/1 point2point

501 No Label 6.6.6.6/32[V] 570 Fa0/0 56.1.1.6

502 No Label 56.1.1.0/24[V] 0 aggregate/mpls56

R4#sh mpls forwarding-table

Local Outgoing Prefix Bytes Label Outgoing Next Hop

Label Label or Tunnel Id Switched interface

400 Pop Label 5.5.5.5/32 0 Se1/1 point2point

401 No Label 0.0.0.0/0[V] 570 Fa0/1 14.1.1.1

1-4察看MP-BGP

R5#sh ip bgp vpnv4 all labels \\察看VPNV4关联的标签

Network Next Hop In label/Out label

Route Distinguisher: 1:1 (mpls56)

0.0.0.0 4.4.4.4 nolabel/401

6.6.6.6/32 56.1.1.6 501/nolabel

56.1.1.0/24 0.0.0.0 502/nolabel(mpls56)

R4#sh ip bgp vpnv4 rd 1:1 //查看MP-BGP RD为1:1的路由信息

BGP table version is 6, local router ID is 4.4.4.4

Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,

r RIB-failure, S Stale

Origin codes: i - IGP, e - EGP, ? - incomplete

Network Next Hop Metric LocPrf Weight Path

Route Distinguisher: 1:1 (default for vrf mpls14)

*> 0.0.0.0 14.1.1.1 0 32768 ?

*>i6.6.6.6/32 5.5.5.5 2 100 0 ?

*>i56.1.1.0/24 5.5.5.5 0 100 0 ?

R5#sh ip bgp vpnv4 rd 1:1 //查看MP-BGP RD为1:1的路由信息

BGP table version is 5, local router ID is 5.5.5.5

Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,

r RIB-failure, S Stale

Origin codes: i - IGP, e - EGP, ? - incomplete

Network Next Hop Metric LocPrf Weight Path

Route Distinguisher: 1:1 (default for vrf mpls56)

*>i0.0.0.0 4.4.4.4 0 100 0 ?

*> 6.6.6.6/32 56.1.1.6 2 32768 ?

*> 56.1.1.0/24 0.0.0.0 0 32768 ?

R4#sh ip bgp vpnv4 all 6.6.6.6

BGP routing table entry for 1:1:6.6.6.6/32, version 5

Paths: (1 available, best #1, table mpls14)

Not advertised to any peer

Local

5.5.5.5 (metric 2297856) from 5.5.5.5 (5.5.5.5)

Origin incomplete, metric 2, localpref 100, valid, internal, best

Extended Community: RT:16:16 OSPF DOMAIN ID:0x0005:0x000000380200

OSPF RT:0.0.0.0:2:0 OSPF ROUTER ID:56.1.1.5:0 //MP-BGP所携带的扩展社团属性

mpls labels in/out nolabel/501

2-构建单臂路由

主要是在R1的F0/0 接口下配置

interface FastEthernet0/0

no ip address

duplex auto

speed auto

!

!

interface FastEthernet0/0.1

encapsulation dot1Q 1 native

ip address 10.200.4.254 255.255.255.0

!

interface FastEthernet0/0.2

encapsulation dot1Q 2

ip address 10.200.43.254 255.255.255.0

!

interface FastEthernet0/1

ip address 14.1.1.1 255.255.255.0

duplex auto

speed auto

SW1---R1 之间为trunk链路 SW3-SW2之间为trunk链路

测试结果就是:

PC9-PC8-PC7 可以相互ping通,且都可以ping通6.6.6.6

试验拓扑图可以在我的网盘下载到

本文转自 bilinyee博客，原文链接：    http://blog.51cto.com/ericfu/1702496    如需转载请自行联系原作者