Configure SD-WAN Edge Router for Inline Deployment

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Updated:October 2, 2023

Document ID:221008

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Background Information

Introduction

This document describes how to configure Cisco SD-WAN Edge with MPLS transport to access Cisco SD-WAN controllers on Internet via inline DC WAN Edge.

Prerequisites

Requirements

Cisco recommends knowledge of these topics:

Cisco Software-Defined Wide Area Network (SD-WAN)
Routing

Components Used

The information in this document is based on these software and hardware versions:

Cisco vManage version 20.6.5.2
Cisco WAN Edge router version 17.06.05

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, ensure that you understand the potential impact of any command.

Background Information

In an Inline DC WAN Edge deployment, control traffic incoming from the MPLS need to reach SD-WAN Controllers on the Internet. Traffic can be routed between MPLS and Internet in VPN 0.

In this case, the tunnel configuration needs to be removed from the MPLS and Internet physical interfaces and placed on two separate loopback interfaces.

Network Diagram

Network Topology

Configurations

In this Deployment, the Branch WAN edge device needs to access controllers through DC WAN edge. In this scenario, an additional physical interface is added in VPN 0 on DC WAN edge and tunnels are moved from physical interface to loopback interface.

Moving the Tunnel from Physical interface to loopback interface allows the DC WAN Edge Router to act as transit for the traffic from DC WAN edge and Branch WAN edge Router. There must be connectivity between loopback IP addresses and controllers to form control and data plane.

This output captures DC WAN edge Interface configuration:

interface GigabitEthernet0/0/0
 ip address 10.201.186.175 255.255.255.224
 no shutdown
!
interface GigabitEthernet0/0/2
 description connection to Branch_WAN-Edge
 ip address 192.168.20.21 255.255.255.252
 no shutdown
!
interface Loopback1
 description wan_color_green
 ip address 192.168.20.2 255.255.255.255
 no shutdown
!
interface Loopback2
 description wan_color_custom2
 ip address 192.168.20.10 255.255.255.255
 no shutdown
!

Next output captures DC WAN edge tunnel configuration:

DC_WAN-Edge#sh sdwan running-config sdwan
sdwan
 interface Loopback1
  tunnel-interface
   encapsulation ipsec weight 1
   no border
   color green
   no last-resort-circuit
   no low-bandwidth-link
   max-control-connections 1
   no vbond-as-stun-server
   vmanage-connection-preference 5
   port-hop
   carrier                       default
   nat-refresh-interval          5
   hello-interval                1000
   hello-tolerance               12
   no allow-service all
   no allow-service bgp
   allow-service dhcp
   allow-service dns
   allow-service icmp
   no allow-service sshd
   no allow-service netconf
   no allow-service ntp
   no allow-service ospf
   no allow-service stun
   allow-service https
   no allow-service snmp
   no allow-service bfd
  exit
 exit
 interface Loopback2
  tunnel-interface
   encapsulation ipsec weight 1
   no border
   color custom2 restrict
   no last-resort-circuit
   no low-bandwidth-link
   max-control-connections 1
   no vbond-as-stun-server
   vmanage-connection-preference 5
   port-hop
   carrier default
   nat-refresh-interval 5
   hello-interval 1000
   hello-tolerance 12
   no allow-service all
   no allow-service bgp
   allow-service dhcp
   allow-service dns
   allow-service icmp
   no allow-service sshd
   no allow-service netconf
   no allow-service ntp
   no allow-service ospf
   no allow-service stun
   allow-service https
   no allow-service snmp
   no allow-service bfd
  exit
 exit
!

Next output captures Branch_WAN-Edge tunnel configuration:

Branch_WAN-Edge#sh sdwan run sdwan
sdwan
 interface GigabitEthernet0/0/2
  tunnel-interface
   encapsulation ipsec weight 1
   no border
   color custom2
   no last-resort-circuit
   no low-bandwidth-link
   no vbond-as-stun-server
   vmanage-connection-preference 5
   port-hop
   carrier                       default
   nat-refresh-interval          5
   hello-interval                1000
   hello-tolerance               12
   no allow-service all
   no allow-service bgp
   allow-service dhcp
   allow-service dns
   allow-service icmp
   no allow-service sshd
   no allow-service netconf
   no allow-service ntp
   no allow-service ospf
   no allow-service stun
   allow-service http
   no allow-service snmp
   no allow-service bfd
  exit
 exit
!

Verification

Next output captures control plane connectivity for DC_WAN-Edge.

DC_WAN-Edge#sh sdwan control connections 
PEER PEER CONTROLLER 
PEER PEER PEER SITE DOMAIN PEER PRIV PEER PUB GROUP 
TYPE PROT SYSTEM IP ID ID PRIVATE IP PORT PUBLIC IP PORT ORGANIZATION LOCAL COLOR PROXY STATE UPTIME ID 
------------------------------------------------------------------------------------------------------------------------------
vsmart dtls 10.10.10.2 1 1 10.201.186.172 12346 10.201.186.172 12346 rch_sdwan_lab custom2 No up 0:00:00:37 0
vsmart dtls 10.10.10.2 1 1 10.201.186.172 12346 10.201.186.172 12346 rch_sdwan_lab green No up 0:00:00:37 0 
vmanage dtls 10.10.10.1 1 0 10.201.186.171 12746 10.201.186.171 12746 rch_sdwan_lab green No up 0:00:00:35 0

Next output captures control plane connectivity for Branch_WAN-Edge.

Branch_WAN-Edge#show sdwan control connections
PEER PEER CONTROLLER 
PEER PEER PEER SITE DOMAIN PEER PRIV PEER PUB GROUP 
TYPE PROT SYSTEM IP ID ID PRIVATE IP PORT PUBLIC IP PORT LOCAL COLOR PROXY STATE UPTIME ID 
------------------------------------------------------------------------------------------------------------------------------
vsmart dtls 10.10.10.2 1 1 10.201.186.172 12346 10.201.186.172 12346 custom2 No up 0:00:00:20 0 
vmanage dtls 10.10.10.1 1 0 10.201.186.171 12346 10.201.186.171 12346 custom2 No up 0:00:00:22 0

Next output captures data plane connectivity for DC_WAN-Edge. The local color green is forming BFD session with remote edge devices.

DC_WAN-Edge#sh sdwan bfd sessions 
SOURCE TLOC REMOTE TLOC DST PUBLIC DST PUBLIC DETECT TX 
SYSTEM IP SITE ID STATE COLOR COLOR SOURCE IP IP PORT ENCAP MULTIPLIER INTERVAL(msec UPTIME TRANSITIONS 
------------------------------------------------------------------------------------------------------------------------------
10.10.10.60 60 up green biz-internet 192.168.20.2 10.201.186.167 12346 ipsec 7 1000 0:00:06:37 6 
10.10.10.20 20 up green biz-internet 192.168.20.2 10.201.186.180 12346 ipsec 7 1000 0:00:06:37 6 
10.10.10.5 5 up green default 192.168.20.2 10.201.186.181 12346 ipsec 7 1000 0:00:06:37 6 
10.10.10.10 10 up green gold 192.168.20.2 10.201.186.182 12346 ipsec 7 1000 0:00:06:37 6

Next output captures data plane connectivity for Branch_WAN-Edge. The local color custom2 is forming BFD session with remote edge devices.

Branch_WAN-Edge#sh sdwan bfd sessions 
SOURCE TLOC REMOTE TLOC DST PUBLIC DST PUBLIC DETECT TX 
SYSTEM IP SITE ID STATE COLOR COLOR SOURCE IP IP PORT ENCAP MULTIPLIER INTERVAL(msec) UPTIME TRANSITIONS 
------------------------------------------------------------------------------------------------------------------------------
10.10.10.5 5 up custom2 default 192.168.20.22 10.201.186.181 12346 ipsec 7 1000 0:00:07:37 2 
10.10.10.10 10 up custom2 gold 192.168.20.22 10.201.186.182 12346 ipsec 7 1000 0:00:07:37 2 
10.10.10.20 20 up custom2 biz-internet 192.168.20.22 10.201.186.180 12346 ipsec 7 1000 0:00:07:37 2 
10.10.10.60 60 up custom2 biz-internet 192.168.20.22 10.201.186.167 12346 ipsec 7 1000 0:00:07:37 2

Related Information

Cisco SD-WAN Design Guide

Revision History

Revision	Publish Date	Comments
1.0	02-Oct-2023	Initial Release

Contributed by Cisco Engineers

Tushar Uttamrao Jagtap
Technical Consulting Engineer

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Configure SD-WAN Edge Router for Inline Deployment

Available Languages

Download Options

Bias-Free Language

Contents

Introduction

Prerequisites

Requirements

Components Used

Background Information

Network Diagram

Configurations

Verification

Related Information

Revision History

Contributed by Cisco Engineers

Was this Document Helpful?

Contact Cisco

This Document Applies to These Products