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51-H3C Access Controllers Comware 7 Policy-Based Forwarding with Dual Gateways (IPv6) Configuration Example

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H3C Access Controllers
Comware 7 Policy-Based Forwarding with Dual Gateways (IPv6)
Configuration Examples

No part of this manual may be reproduced or transmitted in any form or by any means without prior written consent of New H3C Technologies Co., Ltd.

Except for the trademarks of New H3C Technologies Co., Ltd., any trademarks that may be mentioned in this document are the property of their respective owners.

The information in this document is subject to change without notice.

Contents

Introduction· 1

Prerequisites· 1

Example: Configuring policy-based forwarding with dual gateways· 1

Network configuration·· 1

Analysis· 2

Procedures· 2

Configuring Router A·· 2

Configuring Router B·· 3

Configuring the AC·· 4

Verifying the configuration·· 5

Configuration files· 13

Introduction

This document provides a configuration example for configuring policy-based forwarding with dual gateways.

Prerequisites

This document applies to Comware 7-based access controllers and access points. Procedures and information in the examples might be slightly different depending on the software or hardware version of the access controllers and access points.

The configuration examples 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.

The following information is provided based on the assumption that you have basic knowledge of WLAN access, AP management, and DHCPv6.

Example: Configuring policy-based forwarding with dual gateways

Network configuration

As shown in Figure 1, the AC is deployed at the headquarters and an AP is deployed at the branch. Router A and Router B act as the gateways for the branch and the headquarters, respectively. The AP associates with the AC across the Internet.

Configure network settings to meet the following requirements:

· Packets destined to the headquarters are forwarded by the AC and packets destined to the branch or Internet are forwarded by the AP.

· The AP obtains IPv6 addresses from Router A and the client obtains IPv6 addresses from the AC.

Figure 1 Network diagram

Analysis

· For the AP to discover the AC through the Internet, configure Option 52 and manually specify the IPv6 address of the AC on Router A.

· To simplify configurations when a large number of APs are deployed at branches, enable auto AP and auto AP conversion on the AC.

· For both the AP and the AC to forward packets, configure policy-based forwarding on the AC.

Procedures

Configuring Router A

1. Configure interface IPv6 addresses:

# Create VLAN 10 and assign an IPv6 address to VLAN-interface 10.

<RouterA> system-view

[RouterA] vlan 10

[RouterA-Vlan10] quit

[RouterA] interface vlan-interface 10

[RouterA-Vlan-interface10] ipv6 address 2001::1/64

[RouterA-Vlan-interface10] quit

# Assign an IPv6 address to GigabitEthernet 1/0/1.

[RouterA] interface gigabitethernet 1/0/1

[RouterA-GigabitEthernet1/0/1] ipv6 address 3001::1/64

[RouterA-GigabitEthernet1/0/1] quit

# Enable RIPng on GigabitEthernet 1/0/1 and VLAN-interface 10.

[RouterA] ripng 1

[RouterA-ripng-1] quit

[RouterA] interface gigabitethernet 1/0/1

[RouterA-GigabitEthernet1/0/1] ripng 1 enable

[RouterA-GigabitEthernet1/0/1] quit

[RouterA] interface vlan-interface 10

[RouterA-Vlan-interface10] ripng 1 enable

[RouterA-Vlan-interface10] quit

2. Configure DHCPv6:

# Enable the DHCPv6 server on VLAN-interface 10 and apply address pool ap to the interface.

[RouterA] interface vlan-interface 10

[RouterA-Vlan-interface10] ipv6 dhcp select server

[RouterA-Vlan-interface10] ipv6 dhcp server apply pool ap

# Disable RA message suppression. Set both the M flag and O flag to 1 in RA advertisements to be sent.

[RouterA-Vlan-interface10] undo ipv6 nd ra halt

[RouterA-Vlan-interface10] ipv6 nd autoconfig managed-address-flag

[RouterA-Vlan-interface10] ipv6 nd autoconfig other-flag

[RouterA-Vlan-interface10] quit

# Create IPv6 address pool ap, specify the subnet for dynamic allocation, and specify the gateway address.

[RouterA] ipv6 dhcp pool ap

[RouterA-dhcp6-pool-ap] network 2001::0/64

[RouterA-dhcp6-pool-ap] gateway-list 2001::1

[RouterA-dhcp6-pool-ap] quit

# Configure Option 52 that specifies the AC's IPv6 address 4001::2/64.

[RouterA-dhcp6-pool-ap] option 52 hex 40010000000000000000000000000002

[RouterA-dhcp6-pool-ap] quit

Configuring Router B

1. Assign IPv6 addresses to GigabitEthernet 1/0/1 and GigabitEthernet 1/0/2.

[RouterB] interface gigabitethernet 1/0/1

[RouterB-GigabitEthernet1/0/1] ipv6 address 3002::2/64

[RouterB-GigabitEthernet1/0/1] quit

[RouterB] interface gigabitethernet 1/0/2

[RouterB-GigabitEthernet1/0/2] ipv6 address 4001::1/64

[RouterB-GigabitEthernet1/0/2] quit

2. Enable RIPng on GigabitEthernet 1/0/1, GigabitEthernet 1/0/2, and GigabitEthernet 1/0/3.

[RouterB] ripng 1

[RouterB-ripng-1] quit

[RouterB] interface gigabitethernet 1/0/1

[RouterB-GigabitEthernet1/0/1] ripng 1 enable

[RouterB-GigabitEthernet1/0/1] quit

[RouterB] interface gigabitethernet 1/0/2

[RouterB-GigabitEthernet1/0/2] ripng 1 enable

[RouterB-GigabitEthernet1/0/2] quit

[RouterB] interface gigabitethernet 1/0/3

[RouterB-GigabitEthernet1/0/3] ripng 1 enable

Configuring the AC

1. Configure interface IPv6 addresses and routes:

# Create VLAN 2 and assign an IPv6 address to VLAN-interface 2.

<AC> system-view

[AC] vlan 2

[AC-Vlan2] quit

[AC] interface vlan-interface 2

[AC-Vlan-interface2] ipv6 address 5001::1/64

[AC-Vlan-interface2] quit

# Assign an IPv6 address to GigabitEthernet 1/0/1.

[AC] interface gigabitethernet 1/0/1

[AC-GigabitEthernet1/0/1] ipv6 address 4001::2/64

[AC-GigabitEthernet1/0/1] quit

# Configure an IPv6 static route, with the destination address 3002::0 and next hop 4001::1.

[AC] ipv6 route-static 3002:: 64 4001::1

2. Configure DHCPv6 and DNS:

# Enable the DHCPv6 server on VLAN-interface 2 and apply address pool sta to the interface.

[AC] interface vlan-interface 2

[AC-Vlan-interface2] ipv6 dhcp select server

[AC-Vlan-interface2] ipv6 dhcp server apply pool sta

# Disable RA message suppression. Set both the M flag and O flag to 1 in RA advertisements to be sent.

[AC-Vlan-interface2] undo ipv6 nd ra halt

[AC-Vlan-interface2] ipv6 nd autoconfig managed-address-flag

[AC-Vlan-interface2] ipv6 nd autoconfig other-flag

[AC-Vlan-interface2] quit

# Create IPv6 address pool sta, specify the subnet for dynamic allocation, and specify the gateway address.

[AC] ipv6 dhcp pool sta

[AC-dhcp6-pool-sta] network 5001::0/64

[AC-dhcp6-pool-sta] gateway-list 5001::1

#Specify the DNS server address 6001::1/64.

[AC-dhcp6-pool-sta] dns-server 6001::1

[AC-dhcp6-pool-sta] quit

# Exclude IPv6 addresses 5001::1 through 5001::3 from dynamic assignment.

[AC] ipv6 dhcp server forbidden-address 5001::1 5001::3

3. Enable auto AP and auto AP conversion.

[AC] wlan auto-ap enable

[AC] wlan auto-persistent enable

4. Configure policy-based forwarding:

# Create IPv6 advanced ACL 3001, and configure ACL rules to permit DNS, BOOTPC, and BOOTPS packets and packets from 5001::0/64 to 5001::0/64.

[AC] acl ipv6 advanced 3001

[AC-acl-ipv6-adv-3001] rule 0 permit udp source-port eq dns

[AC-acl-ipv6-adv-3001] rule 1 permit udp destination-port eq dns

[AC-acl-ipv6-adv-3001] rule 2 permit udp source-port eq bootpc

[AC-acl-ipv6-adv-3001] rule 3 permit udp destination-port eq bootps

[AC-acl-ipv6-adv-3001] rule 4 permit ipv6 source 5001::0/64 destination 5001::0/64

[AC-acl-ipv6-adv-3001] quit

# Create forwarding policy remote, and configure the forwarding policy to perform centralized forwarding on packets that match ACL 3001.

[AC] wlan forwarding-policy remote

[AC-wlan-fp-remote] classifier acl 3001 behavior remote

[AC-wlan-fp-remote] quit

# Create service template chn, set the SSID to CHN, and assign clients coming online through the service template to VLAN 2.

[AC] wlan service-template chn

[AC-wlan-st-chn] ssid CHN

[AC-wlan-st-chn] vlan 2

# Enable snooping DHCPv6 packets.

[AC-wlan-st-chn] client ipv6-snooping dhcpv6-learning enable

# Enable APs to forward client traffic, apply forwarding policy remote to the service template, and enable the forwarding policy.

[AC-wlan-st-chn] client forwarding-location ap

[AC-wlan-st-chn] client forwarding-policy-name remote

[AC-wlan-st-chn] client forwarding-policy enable

# Enable the service template.

[AC-wlan-st-chn] service-template enable

[AC-wlan-st-chn] quit

# Bind the service template to radio 1 and enable the radio.

[AC] wlan ap-group default-group

[AC-wlan-ap-group-default-group] ap-model WA4320i-ACN

[AC-wlan-ap-group-default-group-ap-model-WA4320i-ACN] radio 1

[AC-wlan-ap-group-default-group-ap-model-WA4320i-ACN-radio-1] service-template chn

[AC-wlan-ap-group-default-group-ap-model-WA4320i-ACN-radio-1] radio enable

[AC-wlan-ap-group-default-group-ap-model-WA4320i-ACN-radio-1] quit

[AC-wlan-ap-group-default-group-ap-model-WA4320i-ACN] quit

[AC-wlan-ap-group-default-group] quit

Verifying the configuration

# Verify that the AP has associated with the AC.

[AC] display wlan ap all

Total number of APs: 1

Total number of connected APs: 1

Total number of connected manual APs: 1

Total number of connected auto APs: 0

Total number of connected common APs: 1

Total number of connected WTUs: 0

Total number of inside APs: 0

Maximum supported APs: 2048

Remaining APs: 2047

Total AP licenses: 32

Remaining AP licenses: 31

AP information

State : I = Idle, J = Join, JA = JoinAck, IL = ImageLoad

C = Config, DC = DataCheck, R = Run, M = Master, B = Backup

AP name APID State Model Serial ID

ap1 2 R/M WA4320i-ACN 210235A1GQC149001806

# Verify that the AP is in Run state, the discovery type is DHCP, and the AP's IPv6 address is 2001::2.

[AC] display wlan ap name ap1 verbose

AP name : ap1

AP ID : 2

AP group name : default-group

State : Run

Backup type : Master

Online time : 0 days 1 hours 25 minutes 12 seconds

System up time : 0 days 2 hours 22 minutes 12 seconds

Model : WA4320i-ACN

Region code : CN

Region code lock : Disable

Serial ID : 210235A1GQC149001806

MAC address : 0AFB-423B-893C

IP address : 2001::2

UDP control port number : 18313

UDP data port number : N/A

H/W version : Ver.C

S/W version : E2321

Boot version : 1.01

USB state : N/A

Power level : N/A

Power info : N/A

Description : wtp1

Priority : 4

Echo interval : 10 seconds

Echo count : 3 counts

Keepalive interval : 10 seconds

Discovery-response wait-time : 2 seconds

Statistics report interval : 50 seconds

Fragment size (data) : 1500

Fragment size (control) : 1450

MAC type : Local MAC & Split MAC

Tunnel mode : Local Bridging & 802.3 Frame & Native Frame

CWPCAP data-tunnel status : Down

Discovery type : DHCP

Retransmission count : 3

Retransmission interval : 5 seconds

Firmware upgrade : Enabled

Sent control packets : 1

Received control packets : 1

Echo requests : 147

Lost echo responses : 0

Average echo delay : 3

Last reboot reason : User soft reboot

Latest IP address : 2001::2

Current AC IP : 5001::1

Tunnel down reason : Request wait timer expired

Connection count : 1

Backup Ipv4 : Not configured

Backup Ipv6 : Not configured

Ctrl-tunnel encryption : Disabled

Ctrl-tunnel encryption state : Not encrypted

Data-tunnel encryption : Disabled

Data-tunnel encryption state : Not encrypted

LED mode : Normal

Remote configuration : Enabled

Radio 1:

Basic BSSID : 70f9-6dd3-61e0

Admin state : Up

Radio type : 802.11ac

Antenna type : internal

Client dot11ac-only : Disabled

Client dot11n-only : Disabled

Channel band-width : 20/40/80MHz

Active band-width : 20/40/80MHz

Secondary channel offset : SCA

Short GI for 20MHz : Supported

Short GI for 40MHz : Supported

Short GI for 80MHz : Supported

Short GI for 160MHz : Not supported

A-MSDU : Enabled

A-MPDU : Enabled

LDPC : Not Supported

STBC : Supported

Operational VHT-MCS Set:

Mandatory : Not configured

Supported : NSS1 0,1,2,3,4,5,6,7,8,9

NSS2 0,1,2,3,4,5,6,7,8,9

Multicast : Not configured

Operational HT MCS Set:

Mandatory : Not configured

Supported : 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,

10, 11, 12, 13, 14, 15

Multicast : Not configured

Channel : 149(auto)

Channel usage(%) : 0

Max power : 20 dBm

Operational rate:

Mandatory : 6, 12, 24 Mbps

Multicast : Auto

Supported : 9, 18, 36, 48, 54 Mbps

Disabled : Not configured

Distance : 1 km

ANI : Enabled

Fragmentation threshold : 2346 bytes

Beacon interval : 100 TU

Protection threshold : 2346 bytes

Long retry threshold : 4

Short retry threshold : 7

Maximum rx duration : 2000 ms

Noise floor : -105 dBm

Smart antenna : Enabled

Smart antenna policy : Auto

Protection mode : cts-to-self

Continuous mode : N/A

HT protection mode : No protection

Radio 2:

Basic BSSID : 70f9-6dd3-61f0

Admin state : Down

Radio type : 802.11n(2.4GHz)

Antenna type : internal

Client dot11n-only : Disabled

Channel band-width : 20MHz

Active band-width : 20MHz

Secondary channel offset : SCN

Short GI for 20MHz : Supported

Short GI for 40MHz : Supported

A-MSDU : Enabled

A-MPDU : Enabled

LDPC : Not Supported

STBC : Supported

Operational HT MCS Set:

Mandatory : Not configured

Supported : 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,

10, 11, 12, 13, 14, 15

Multicast : Not configured

Channel : 6(auto)

Channel usage(%) : 0

Max power : 20 dBm

Preamble type : Short

Operational rate:

Mandatory : 1, 2, 5.5, 11 Mbps

Multicast : Auto

Supported : 6, 9, 12, 18, 24, 36, 48, 54 Mbps

Disabled : Not configured

Distance : 1 km

ANI : Enabled

Fragmentation threshold : 2346 bytes

Beacon interval : 100 TU

Protection threshold : 2346 bytes

Long retry threshold : 4

Short retry threshold : 7

Maximum rx duration : 2000 ms

Noise floor : 0 dBm

Smart antenna : Enabled

Smart antenna policy : Auto

Protection mode : cts-to-self

Continuous mode : N/A

HT protection mode : No protection

Radio 1:

Basic BSSID : 7848-59f6-3940

Admin state : Up

Radio type : 802.11ac

Antenna type : internal

Client dot11ac-only : Disabled

Client dot11n-only : Disabled

Channel band-width : 20/40/80MHz

Active band-width : 20/40/80MHz

Secondary channel offset : SCB

Short GI for 20MHz : Supported

Short GI for 40MHz : Supported

Short GI for 80MHz : Supported

Short GI for 160MHz : Not supported

mimo : Not Config

Green-Energy-Management : Disabled

A-MSDU : Enabled

A-MPDU : Enabled

LDPC : Not Supported

STBC : Supported

Operational VHT-MCS Set:

Mandatory : Not configured

Supported : NSS1 0,1,2,3,4,5,6,7,8,9

NSS2 0,1,2,3,4,5,6,7,8,9

Multicast : Not configured

Operational HT MCS Set:

Mandatory : Not configured

Supported : 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,

10, 11, 12, 13, 14, 15

Multicast : Not configured

Channel : 44(auto)

Channel usage(%) : 15

Max power : -102 dBm

Operational rate:

Mandatory : 6, 12, 24 Mbps

Multicast : Auto

Supported : 9, 18, 36, 48, 54 Mbps

Disabled : Not configured

Distance : 1 km

ANI : Enabled

Fragmentation threshold : 2346 bytes

Beacon interval : 100 TU

Protection threshold : 2346 bytes

Long retry threshold : 4

Short retry threshold : 7

Maximum rx duration : 2000 ms

Noise Floor : 5 dBm

Smart antenna : Enabled

Smart antenna policy : Auto

Protection mode : rts-cts

Continuous mode : N/A

HT protection mode : No protection

Radio 2:

Basic BSSID : 7848-59f6-3950

Admin state : Down

Radio type : 802.11b

Antenna type : internal

Client dot11n-only : Disabled

Channel band-width : 20MHz

Active band-width : 20MHz

Secondary channel offset : SCN

Short GI for 20MHz : Supported

Short GI for 40MHz : Supported

A-MSDU : Enabled

A-MPDU : Enabled

LDPC : Not Supported

STBC : Supported

Operational HT MCS Set:

Mandatory : Not configured

Supported : 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,

10, 11, 12, 13, 14, 15

Multicast : Not configured

Channel : 5(auto)

Channel usage(%) : 0

Max power : 20 dBm

Preamble type : Short

Operational rate:

Mandatory : 1, 2, 5.5, 11 Mbps

Multicast : Auto

Supported : 6, 9, 12, 18, 24, 36, 48, 54 Mbps

Disabled : Not configured

Distance : 1 km

ANI : Enabled

Fragmentation threshold : 2346 bytes

Beacon interval : 100 TU

Protection threshold : 2346 bytes

Long retry threshold : 4

Short retry threshold : 7

Maximum rx duration : 2000 ms

Noise Floor : 0 dBm

Smart antenna : Enabled

Smart antenna policy : Auto

Protection mode : rts-cts

Continuous mode : N/A

HT protection mode : No protection

# Verify that the client has come online with an IPv6 address in subnet 5001::0/64, and the forwarding policy is remote.

[AC] display wlan client ipv6

Total number of clients: 1

MAC address User name AP name RID IPv6 address VLAN

0015-005e-9348 N/A ap1 1 5001::2 2

[AC] display wlan client verbose

Total number of clients: 1

MAC address : 0015-005e-9348

IPv4 address : N/A

IPv6 address : 5001::2

Username : N/A

AID : 1

AP ID : 2

AP name : ap1

Radio ID : 1

SSID : CHN

BSSID : 70f9-6dd3-61e0

VLAN ID : 2

Sleep count : 0

Wireless mode : 802.11an

Channel bandwidth : 40MHz

20/40 BSS Coexistence Management : Not supported

SM power save : Disabled

Short GI for 20MHz : Supported

Short GI for 40MHz : Supported

STBC RX capability : Supported

STBC TX capability : Not supported

LDPC RX capability : Not supported

Block Ack : N/A

Supported HT MCS set : 0, 1, 2, 3, 4, 5, 6, 7,

8, 9, 10, 11, 12, 13, 14,

Supported rates : 6, 9, 12, 18, 24, 36,

48, 54 Mbps

QoS mode : WMM

Listen interval : 100

RSSI : 0

Rx/Tx rate : 0/0

Authentication method : Open system

Security mode : PRE-RSNA

AKM mode : N/A

Cipher suite : N/A

User authentication mode : Bypass

Authorization ACL ID : N/A

Authorization user profile : N/A

Roam status : N/A

Key derivation : N/A

PMF status : N/A

Forwarding policy name : remote

Online time : 0days 0hours 0minutes 33seconds

FT status : Inactive

# Verify that IPv6 address 5001::2 in the headquarters' network can be pinged successfully.

C:\Users\h3c>ping ipv6 5001::2

Pinging 5001::2 with 32 bytes of data:

Reply from 5001::2: bytes=32 time=6ms TTL=255

Reply from 5001::2: bytes=32 time=3ms TTL=255

Reply from 5001::2: bytes=32 time=6ms TTL=255

Reply from 5001::2: bytes=32 time=1ms TTL=255

Ping statistics for 5001::2:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 1ms, Maximum = 6ms, Average = 4ms

# Verify that a website on the Internet (for example, www.baidu.com) can be pinged successfully.

C:\Users\h3c>ping www.baidu.com

Pinging www.baidu.com [202.202.1.188] with 32 bytes of data:

Reply from 202.202.1.188: bytes=32 time=7ms TTL=255

Reply from 202.202.1.188: bytes=32 time=3ms TTL=255

Reply from 202.202.1.188: bytes=32 time=2ms TTL=255

Ping statistics for 202.202.1.188:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 2ms, Maximum = 7ms, Average = 3ms

Configuration files

· Router A:

system-view

vlan 10

interface vlan-interface 10

ipv6 address 2001::1/64

interface gigabitethernet 1/0/1

ipv6 address 3001::1/64

ripng 1

interface gigabitethernet 1/0/1

ripng 1 enable

interface vlan-interface 10

ripng 1 enable

interface vlan-interface 10

ipv6 dhcp select server

ipv6 dhcp server apply pool ap

undo ipv6 nd ra halt

ipv6 nd autoconfig managed-address-flag

ipv6 nd autoconfig other-flag

ipv6 dhcp pool ap

network 2001::0/64

gateway-list 2001::1

option 52 hex 40010000000000000000000000000002

· Router B:

interface gigabitethernet 1/0/1

ipv6 address 3002::2/64

interface gigabitethernet 1/0/2

ipv6 address 4001::1/64

ripng 1

interface gigabitethernet 1/0/1

ripng 1 enable

interface gigabitethernet 1/0/2

ripng 1 enable

interface gigabitethernet 1/0/3

ripng 1 enable

· AC:

system-view

vlan 2

interface vlan-interface 2

ipv6 address 5001::1/64

interface gigabitethernet 1/0/1

ipv6 address 4001::2/64

ipv6 route-static 3002:: 64 4001::1

interface vlan-interface 2

ipv6 dhcp select server

ipv6 dhcp server apply pool sta

undo ipv6 nd ra halt

ipv6 nd autoconfig managed-address-flag

ipv6 nd autoconfig other-flag

ipv6 dhcp pool sta

network 5001::0/64

gateway-list 5001::1

dns-server 6001::1

ipv6 dhcp server forbidden-address 5001::1 5001::3

wlan auto-ap enable

wlan auto-persistent enable

acl ipv6 advanced 3001

rule 0 permit udp source-port eq dns

rule 1 permit udp destination-port eq dns

rule 2 permit udp source-port eq bootpc

rule 3 permit udp destination-port eq bootps

rule 4 permit ipv6 source 5001::0/64 destination 5001::0/64

wlan forwarding-policy remote

classifier acl 3001 behavior remote

wlan service-template chn

ssid CHN

vlan 2

client ipv6-snooping dhcpv6-learning enable

client forwarding-location ap

client forwarding-policy-name remote

client forwarding-policy enable

service-template enable

wlan ap-group default-group

ap-model WA4320i-ACN

radio 1

service-template chn

radio enable

H3C Access Controllers and Access Points Configuration Examples(V7)-6W101

Introduction

Prerequisites

Example: Configuring policy-based forwarding with dual gateways

Network configuration

Analysis

Procedures

Configuring Router A

Configuring Router B

Configuring the AC

Verifying the configuration

Configuration files

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