Contents

Introduction· 1

Prerequisites· 1

Example: Configuring OSPFv3 route filtering· 1

Network configuration· 1

Applicable hardware and software versions· 2

Restrictions and guidelines· 4

Procedures· 4

Configuring IPv6 addresses· 4

Configuring OSPFv3· 4

Configure RIPng· 6

Configuring route redistribution· 6

Configuring OSPFv3 route filtering· 8

Verifying the configuration· 8

Configuration files· 12

 

Introduction

This document provides OSPFv3 route filtering configuration examples.

Prerequisites

This document is not restricted to specific software or hardware versions.

The configuration examples in this document were created and verified in a lab environment, and all the devices were started with the factory default configuration. When you are working on a live network, make sure you understand the potential impact of every command on your network.

This document assumes that you have basic knowledge of OSPFv3 route filtering.

Example: Configuring OSPFv3 route filtering

Network configuration

As shown in Figure 1, the devices of an enterprise reside in OSPFv3 and RIPng domains.

Configure route redistribution between OSPFv3 and RIPng to interconnect the devices.

Configure route filtering on Device E, Device C, and Device D to meet the following requirements:

·     The route destined for R&D department 2 is not redistributed to OSPFv3.

·     Marketing department 1 cannot reach R&D department 1.

·     R&D department 1 and the After-sale service department cannot reach Marketing department 2.

Figure 1 Network diagram

 

Table 1 Interface and IP address assignment

Device	Interface	IP address	Device	Interface	IP address
Device A	Vlan-int100	1::1/64	Device B	Vlan-int100	1::2/64
	Vlan-int200	2::1/64		Vlan-int300	3::1/64
	Vlan-int400	4::1/64
Device C	Vlan-int200	2::2/64	Device D	Vlan-int300	3::2/64
	Loop0	13::1/64		Loop0	11::1/64
				Loop1	12::1/64
Device E	Vlan-int400	4::2/64	Device F	Vlan-int500	5::2/64
	Vlan-int500	5::1/64		Loop0	14::1/64
				Loop1	15::1/64

 

Applicable hardware and software versions

The following matrix shows the hardware and software versions to which this configuration example is applicable:

 

Hardware	Software version
S6812 switch series S6813 switch series	Release 6615Pxx, Release 6628Pxx
S6550XE-HI switch series	Release 6008 and later, Release 8106Pxx
S6525XE-HI switch series	Release 6008 and later, Release 8106Pxx
S5850 switch series	Release 8005 and later
S5570S-EI switch series	Release 11xx
S5560X-EI switch series	Release 63xx, Release 65xx, Release 6615Pxx, Release 6628Pxx
S5560X-HI switch series	Release 63xx, Release 65xx, Release 6615Pxx, Release 6628Pxx
S5500V2-EI switch series	Release 63xx, Release 65xx, Release 6615Pxx, Release 6628Pxx
MS4520V2-30F switch	Release 63xx, Release 65xx, Release 6615Pxx, Release 6628Pxx
MS4520V2-30C switch MS4520V2-54C switch	Release 65xx, Release 6615Pxx, Release 6628Pxx
MS4520V2-28S switch MS4520V2-24TP switch	Release 63xx
S6520X-HI switch series S6520X-EI switch series	Release 63xx and Release 65xx
S6520X-SI switch series S6520-SI switch series	Release 63xx, Release 65xx, Release 6615Pxx, Release 6628Pxx
S5000-EI switch series	Release 63xx, Release 65xx, Release 6615Pxx, Release 6628Pxx
MS4600 switch series	Release 63xx, Release 65xx, Release 6615Pxx, Release 6628Pxx
ES5500 switch series	Release 63xx, Release 65xx, Release 6615Pxx, Release 6628Pxx
S5560S-EI switch series S5560S-SI switch series	Release 63xx
S5500V3-24P-SI S5500V3-48P-SI	Release 63xx
S5500V3-SI switch series (except S5500V3-24P-SI and S5500V3-48P-SI)	Release 11xx
S5170-EI switch series	Release 11xx
S5130S-HI switch series S5130S-EI switch series S5130S-SI switch series S5130S-LI switch series	Release 63xx
S5120V2-SI switch series S5120V2-LI switch series	Release 63xx
S5120V3-EI switch series	Release 11xx
S5120V3-36F-SI S5120V3-28P-HPWR-SI S5120V3-54P-PWR-SI	Release 11xx
S5120V3-SI switch series (except S5120V3-36F-SI, S5120V3-28P-HPWR-SI, and S5120V3-54P-PWR-SI)	Release 63xx
S5120V3-LI switch series	Release 63xx
S3600V3-EI switch series	Release 11xx
S3600V3-SI switch series	Not supported
S3100V3-EI switch series S3100V3-SI switch series	Release 63xx
S5110V2 switch series	Release 63xx
S5110V2-SI switch series	Not supported
S5000V3-EI switch series S5000V5-EI switch series	Not supported
S5000E-X switch series S5000X-EI switch series	Release 63xx
E128C switch E152C switch E500C switch series E500D switch series	Release 63xx
MS4320V2 switch series MS4320V3 switch series MS4300V2 switch series MS4320 switch series MS4200 switch series	Release 63xx
WS5850-WiNet switch series	Release 63xx
WS5820-WiNet switch series WS5810-WiNet switch series	Release 63xx
WAS6000 switch series	Release 63xx
IE4300-12P-AC switch IE4300-12P-PWR switch IE4300-M switch series IE4320 switch series	Release 63xx

 

Restrictions and guidelines

When you configure OSPFv3 route filtering, follow these restrictions and guidelines:

·     The filter-policy export command that filters redistributed routes takes effect only on an ASBR.

·     OSPFv3 filters routes calculated using received LSAs. It does not filter LSAs.

·     IP communication is bidirectional. If a router filters out a route destined for Network A, the subnets attached to the router cannot reach Network A, and Network A cannot reach the subnets.

·     When you configure route filtering by referencing an ACL, configure the rule permit source any item following multiple rule deny source items to allow unmatched routes to pass.

·     Specify a Router ID when you configure OSPFv3.

Procedures

Configuring IPv6 addresses

# Configure an IPv6 address for VLAN-interface 100.

<DeviceA> system-view

[DeviceA] interface vlan-interface 100

[DeviceA-Vlan-interface100] ipv6 address 1::1 64

# Configure IPv6 addresses for other interfaces in the same way VLAN-interface 100 is configured. (Details not shown.)

Configuring OSPFv3

# Enable OSPFv3 on Device A.

<DeviceA> system-view

[DeviceA] ospfv3

[DeviceA-ospfv3-1] router-id 6.6.6.6

[DeviceA-ospfv3-1] quit

[DeviceA] interface vlan-interface 100

[DeviceA-Vlan-interface100] ospfv3 1 area 0

[DeviceA-Vlan-interface100] quit

[DeviceA] interface vlan-interface 200

[DeviceA-Vlan-interface200] ospfv3 1 area 2

[DeviceA-Vlan-interface200] quit

[DeviceA] interface vlan-interface 400

[DeviceA-Vlan-interface400] ospfv3 1 area 1

[DeviceA-Vlan-interface400] quit

# Enable OSPFv3 on Device B.

<DeviceB> system-view

[DeviceB] ospfv3

[DeviceB-ospfv3-1] router-id 5.5.5.5

[DeviceB-ospfv3-1] quit

[DeviceB] interface vlan-interface 100

[DeviceB-Vlan-interface100] ospfv3 1 area 0

[DeviceB-Vlan-interface100] quit

[DeviceB] interface vlan-interface 300

[DeviceB-Vlan-interface300] ospfv3 1 area 3

[DeviceB-Vlan-interface300] quit

# Enable OSPFv3 on Device C.

<DeviceC> system-view

[DeviceC] ospfv3

[DeviceC-ospfv3-1] router-id 4.4.4.4

[DeviceC-ospfv3-1] quit

[DeviceC] interface vlan-interface 200

[DeviceC-Vlan-interface200] ospfv3 1 area 2

[DeviceC-Vlan-interface200] quit

[DeviceC] interface loopback 0

[DeviceC-LoopBack0] ospfv3 1 area 2

[DeviceC-LoopBack0] quit

# Enable OSPFv3 on Device D.

<DeviceD> system-view

[DeviceD] ospfv3

[DeviceD-ospfv3-1] router-id 3.3.3.3

[DeviceD-ospfv3-1] quit

[DeviceD] interface vlan-interface 300

[DeviceD-Vlan-interface300] ospfv3 1 area 3

[DeviceD-Vlan-interface300] quit

[DeviceD] interface loopback 0

[DeviceD-LoopBack0] ospfv3 1 area 3

[DeviceD-LoopBack0] quit

[DeviceD] interface loopback 1

[DeviceD-LoopBack1] ospfv3 1 area 3

[DeviceD-LoopBack1] quit

# Enable OSPFv3 on Device E.

<DeviceE> system-view

[DeviceE] ospfv3

[DeviceE-ospfv3-1] router-id 2.2.2.2

[DeviceE-ospfv3-1] quit

[DeviceE] interface vlan-interface 400

[DeviceE-Vlan-interface400] ospfv3 1 area 1

[DeviceE-Vlan-interface400] quit

Configure RIPng

# Enable RIPng on Device E.

<DeviceE> system-view

[DeviceE] ripng

[DeviceE-ripng-1] quit

[DeviceE] interface vlan-interface 500

[DeviceE-Vlan-interface500] ripng 1 enable

[DeviceE-Vlan-interface500] quit

# Enable RIPng on Device F.

<DeviceF> system-view

[DeviceF] ripng

[DeviceF-ripng-1] quit

[DeviceF] interface vlan-interface 500

[DeviceF-Vlan-interface500] ripng 1 enable

[DeviceF-Vlan-interface500] quit

[DeviceF] interface loopback 0

[DeviceF-LoopBack0] ripng 1 enable

[DeviceF-LoopBack0] quit

[DeviceF] interface loopback 1

[DeviceF-LoopBack0] ripng 1 enable

[DeviceF-LoopBack0] quit

Configuring route redistribution

# Configure Device E to redistribute OSPFv3 and direct routes to RIPng.

<DeviceE> system-view

[DeviceE] ripng

[DeviceE-ripng-1] import-route direct

[DeviceE-ripng-1] import-route ospfv3

[DeviceE-ripng-1] quit

# Configure Device E to redistribute RIPng and direct routes to OSPFv3.

[DeviceE] ospfv3

[DeviceE-ospfv3-1] import-route direct

[DeviceE-ospfv3-1] import-route ripng

[DeviceE-ospfv3-1] quit

# Verify that Device E has routes to all networks.

[DeviceE] display ipv6 routing-table

 

Destinations : 15        Routes : 15

 

Destination: ::1/128                                     Protocol  : Direct

NextHop    : ::1                                         Preference: 0

Interface  : InLoop0                                     Cost      : 0

 

Destination: 1::/64                                      Protocol  : OSPFv3

NextHop    : FE80::2E0:FCFF:FE58:124D                    Preference: 10

Interface  : Vlan400                                     Cost      : 2

 

Destination: 2::/64                                      Protocol  : OSPFv3

NextHop    : FE80::2E0:FCFF:FE58:124D                    Preference: 10

Interface  : Vlan400                                     Cost      : 2

 

Destination: 3::/64                                      Protocol  : OSPFv3

NextHop    : FE80::2E0:FCFF:FE58:124D                    Preference: 10

Interface  : Vlan400                                     Cost      : 3

 

Destination: 4::/64                                      Protocol  : Direct

NextHop    : ::                                          Preference: 0

Interface  : Vlan400                                     Cost      : 0

 

Destination: 4::2/128                                    Protocol  : Direct

NextHop    : ::1                                         Preference: 0

Interface  : InLoop0                                     Cost      : 0

 

Destination: 5::/64                                      Protocol  : Direct

NextHop    : ::                                          Preference: 0

Interface  : Vlan500                                     Cost      : 0

 

Destination: 5::1/128                                    Protocol  : Direct

NextHop    : ::1                                         Preference: 0

Interface  : InLoop0                                     Cost      : 0

 

Destination: 11::1/128                                   Protocol  : OSPFv3

NextHop    : FE80::2E0:FCFF:FE58:124D                    Preference: 10

Interface  : Vlan400                                     Cost      : 3

 

Destination: 12::1/128                                   Protocol  : OSPFv3

NextHop    : FE80::2E0:FCFF:FE58:124D                    Preference: 10

Interface  : Vlan400                                     Cost      : 3

 

Destination: 13::1/128                                   Protocol  : OSPFv3

NextHop    : FE80::2E0:FCFF:FE58:124D                    Preference: 10

Interface  : Vlan400                                     Cost      : 2

 

Destination: 14::/64                                     Protocol  : RIPng

NextHop    : FE80::2E0:FCFF:FE11:19B5                    Preference: 100

Interface  : Vlan500                                     Cost      : 1

 

Destination: 15::/64                                     Protocol  : RIPng

NextHop    : FE80::2E0:FCFF:FE11:19B5                    Preference: 100

Interface  : Vlan500                                     Cost      : 1

 

Destination: FE80::/10                                   Protocol  : Direct

NextHop    : ::                                          Preference: 0

Interface  : InLoop0                                     Cost      : 0

 

Destination: FF00::/8                                    Protocol  : Direct

NextHop    : ::                                          Preference: 0

Interface  : NULL0                                       Cost      : 0

# Verify that other devices have routes to all networks. (Details not shown.)

Configuring OSPFv3 route filtering

# On Device C, configure IPv6 basic ACL 2000 to permit any subnet except 12::1/64.

<DeviceC> system-view

[DeviceC] acl ipv6 basic 2000

[DeviceC-acl-ipv6-basic-2000] rule 0 deny source 12::1 64

[DeviceC-acl-ipv6-basic-2000] rule permit source any

[DeviceC-acl-ipv6-basic-2000] quit

# On Device C, use ACL 2000 to filter received routes.

[DeviceC] ospfv3

[DeviceC-ospfv3-1] filter-policy 2000 import

[DeviceC-ospfv3-1] quit

# On Device D, configure IPv6 basic ACL 2000 to permit any subnet except 15::1/64.

<DeviceD> system-view

[DeviceD] acl ipv6 basic 2000

[DeviceD-acl-ipv6-basic-2000] rule 0 deny source 15::1 64

[DeviceD-acl-ipv6-basic-2000] rule permit source any

[DeviceD-acl-ipv6-basic-2000] quit

# On Device D, use ACL 2000 to filter received routes.

[DeviceD] ospfv3

[DeviceD-ospfv3-1] filter-policy 2000 import

[DeviceD-ospfv3-1] quit

# On Device E, configure IPv6 basic ACL 2000 to permit any subnet except 14::1/64.

<DeviceE> system-view

[DeviceE] acl ipv6 basic 2000

[DeviceE-acl-ipv6-basic-2000] rule 0 deny source 14::1 64

[DeviceE-acl-ipv6-basic-2000] rule permit source any

[DeviceE-acl-ipv6-basic-2000] quit

# On Device E, use ACL 2000 to filter routes redistributed from RIPng.

[DeviceE] ospfv3

[DeviceE-ospfv3-1] filter-policy 2000 export ripng 1

[DeviceE-ospfv3-1] quit

Verifying the configuration

# Verify that Device C does not have a route to 12::/64.

[DeviceC] display ipv6 routing-table

 

Destinations : 13        Routes : 13

 

Destination: ::1/128                                     Protocol  : Direct

NextHop    : ::1                                         Preference: 0

Interface  : InLoop0                                     Cost      : 0

 

Destination: 1::/64                                      Protocol  : OSPFv3

NextHop    : FE80::2E0:FCFF:FE58:1245                    Preference: 10

Interface  : Vlan200                                     Cost      : 2

 

Destination: 2::/64                                      Protocol  : Direct

NextHop    : ::                                          Preference: 0

Interface  : Vlan200                                     Cost      : 0

 

Destination: 2::2/128                                    Protocol  : Direct

NextHop    : ::1                                         Preference: 0

Interface  : InLoop0                                     Cost      : 0

 

Destination: 3::/64                                      Protocol  : OSPFv3

NextHop    : FE80::2E0:FCFF:FE58:1245                    Preference: 10

Interface  : Vlan200                                     Cost      : 3

 

Destination: 4::/64                                      Protocol  : OSPFv3

NextHop    : FE80::2E0:FCFF:FE58:1245                    Preference: 10

Interface  : Vlan200                                     Cost      : 2

 

Destination: 5::/64                                      Protocol  : OSPFv3

NextHop    : FE80::2E0:FCFF:FE58:1245                    Preference: 150

Interface  : Vlan200                                     Cost      : 1

 

Destination: 11::1/128                                   Protocol  : OSPFv3

NextHop    : FE80::2E0:FCFF:FE58:1245                    Preference: 10

Interface  : Vlan200                                     Cost      : 3

 

Destination: 13::/64                                     Protocol  : Direct

NextHop    : ::                                          Preference: 0

Interface  : Loop0                                       Cost      : 0

 

Destination: 13::1/128                                   Protocol  : Direct

NextHop    : ::1                                         Preference: 0

Interface  : InLoop0                                     Cost      : 0

 

Destination: 15::/64                                     Protocol  : OSPFv3

NextHop    : FE80::2E0:FCFF:FE58:1245                    Preference: 150

Interface  : Vlan200                                     Cost      : 1

 

Destination: FE80::/10                                   Protocol  : Direct

NextHop    : ::                                          Preference: 0

Interface  : InLoop0                                     Cost      : 0

 

Destination: FF00::/8                                    Protocol  : Direct

NextHop    : ::                                          Preference: 0

Interface  : NULL0                                       Cost      : 0

# Verify that Marketing department 1 cannot reach R&D department 1.

[DeviceC] ping ipv6 -a 13::1 12::1

Ping6(56 data bytes) 13::1 --> 12::1, press CTRL+C to break

Request time out

Request time out

Request time out

Request time out

Request time out

 

--- Ping6 statistics for 12::1 ---

5 packet(s) transmitted, 0 packet(s) received, 100.0% packet loss

# Verify that Device D does not have a route to 15::/64.

[DeviceD] display ipv6 routing-table

 

Destinations : 14        Routes : 14

 

Destination: ::1/128                                     Protocol  : Direct

NextHop    : ::1                                         Preference: 0

Interface  : InLoop0                                     Cost      : 0

 

Destination: 1::/64                                      Protocol  : OSPFv3

NextHop    : FE80::2A0:FCFF:FE00:5815                    Preference: 10

Interface  : Vlan300                                     Cost      : 2

 

Destination: 2::/64                                      Protocol  : OSPFv3

NextHop    : FE80::2A0:FCFF:FE00:5815                    Preference: 10

Interface  : Vlan300                                     Cost      : 3

 

Destination: 3::/64                                      Protocol  : Direct

NextHop    : ::                                          Preference: 0

Interface  : Vlan300                                     Cost      : 0

 

Destination: 3::2/128                                    Protocol  : Direct

NextHop    : ::1                                         Preference: 0

Interface  : InLoop0                                     Cost      : 0

 

Destination: 4::/64                                      Protocol  : OSPFv3

NextHop    : FE80::2A0:FCFF:FE00:5815                    Preference: 10

Interface  : Vlan300                                     Cost      : 3

 

Destination: 5::/64                                      Protocol  : OSPFv3

NextHop    : FE80::2A0:FCFF:FE00:5815                    Preference: 150

Interface  : Vlan300                                     Cost      : 1

 

Destination: 11::/64                                     Protocol  : Direct

NextHop    : ::                                          Preference: 0

Interface  : Loop0                                       Cost      : 0

 

Destination: 11::1/128                                   Protocol  : Direct

NextHop    : ::1                                         Preference: 0

Interface  : InLoop0                                     Cost      : 0

 

Destination: 12::/64                                     Protocol  : Direct

NextHop    : ::                                          Preference: 0

Interface  : Loop1                                       Cost      : 0

 

Destination: 12::1/128                                   Protocol  : Direct

NextHop    : ::1                                         Preference: 0

Interface  : InLoop0                                     Cost      : 0

 

Destination: 13::1/128                                   Protocol  : OSPFv3

NextHop    : FE80::2A0:FCFF:FE00:5815                    Preference: 10

Interface  : Vlan300                                     Cost      : 3

 

Destination: FE80::/10                                   Protocol  : Direct

NextHop    : ::                                          Preference: 0

Interface  : NULL0                                       Cost      : 0

 

Destination: FF00::/8                                    Protocol  : Direct

NextHop    : ::                                          Preference: 0

Interface  : NULL0                                       Cost      : 0

# Verify that the After-sale service department cannot reach Marketing department 2.

[DeviceD] ping ipv6 -a 11::1 15::1

Ping6(56 data bytes) 11::1 --> 15::1, press CTRL+C to break

Request time out

Request time out

Request time out

Request time out

Request time out

 

--- Ping6 statistics for 15::1 ---

5 packet(s) transmitted, 0 packet(s) received, 100.0% packet loss

# Verify that R&D department 1 cannot reach Marketing department 2.

[DeviceD] ping ipv6 -a 12::1 15::1

Ping6(56 data bytes) 12::1 --> 15::1, press CTRL+C to break

Request time out

Request time out

Request time out

Request time out

Request time out

 

--- Ping6 statistics for 15::1 ---

5 packet(s) transmitted, 0 packet(s) received, 100.0% packet loss

The output on Device C and Device D shows that Device E has filtered out the route destined for R&D development 2.

Configuration files

·     Device A:

#

ospfv3 1

 router-id 6.6.6.6

 area 0.0.0.0

 area 0.0.0.1

 area 0.0.0.2

#

vlan 100

#

vlan 200

#

vlan 400

#

interface Vlan-interface100

 ospfv3 1 area 0.0.0.0

 ipv6 address 1::1/64

#

interface Vlan-interface200

 ospfv3 1 area 0.0.0.2

 ipv6 address 2::1/64

#

interface Vlan-interface400

 ospfv3 1 area 0.0.0.1

 ipv6 address 4::1/64

#

·     Device B:

#

ospfv3 1

 router-id 5.5.5.5

 area 0.0.0.0

 area 0.0.0.3

#

vlan 100

#

vlan 300

#

interface Vlan-interface100

 ospfv3 1 area 0.0.0.0

 ipv6 address 1::2/64

#

interface Vlan-interface300

 ospfv3 1 area 0.0.0.3

 ipv6 address 3::1/64

#

·     Device C:

#

ospfv3 1

 router-id 4.4.4.4

 filter-policy 2000 import

 area 0.0.0.2

#

vlan 200

#

interface LoopBack0

 ospfv3 1 area 0.0.0.2

 ipv6 address 13::1/64

#

interface Vlan-interface200

 ospfv3 1 area 0.0.0.2

 ipv6 address 2::2/64

#

acl ipv6 basic 2000

 rule 0 deny source 12::/64

 rule 5 permit

#

·     Device D:

#

ospfv3 1

 router-id 3.3.3.3

 filter-policy 2000 import

 area 0.0.0.3

#

vlan 300

#

interface LoopBack0

 ospfv3 1 area 0.0.0.3

 ipv6 address 11::1/64

#

interface LoopBack1

 ospfv3 1 area 0.0.0.3

 ipv6 address 12::1/64

#

interface Vlan-interface300

 ospfv3 1 area 0.0.0.3

 ipv6 address 3::2/64

#

acl ipv6 basic 2000

 rule 0 deny source 15::/64

 rule 5 permit

#

·     Device E:

#

ospfv3 1

 router-id 2.2.2.2

 import-route direct

import-route ripng 1

 filter-policy 2000 export ripng 1

 area 0.0.0.1

#

ripng 1

 import-route direct

 import-route ospfv3 1

#

vlan 400

#

vlan 500

#

interface Vlan-interface400

 ospfv3 1 area 0.0.0.1

 ipv6 address 4::2/64

#

interface Vlan-interface500

 ipv6 address 5::1/64

 ripng 1 enable

#

acl ipv6 basic 2000

 rule 0 deny source 14::/64

 rule 5 permit

#

·     Device F:

#

ripng 1

#

vlan 500

#

interface LoopBack0

 ipv6 address 14::1/64

 ripng 1 enable

#

interface LoopBack1

 ipv6 address 15::1/64

 ripng 1 enable

#

interface Vlan-interface500

 ipv6 address 5::2/64

 ripng 1 enable

#