Contents

Introduction

Prerequisites

Requirements

Components Used

Background Information

Network Diagram

Configurations

Verification

Related 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