Cisco Cisco 2800 3800 Series 1-Port (SFP) Gigabit Ethernet High-Speed WIC

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Contents

1. Introduction .......................................................................................................................................................... 4

2. Cellular Technology Evolution to 4G LTE ......................................................................................................... 5

2.1 4G LTE Performance Characteristics ................................................................................................................... 5

2.2 Throughput ............................................................................................................................................................. 6

2.3 Latency ................................................................................................................................................................... 6

2.4 Shared Access ....................................................................................................................................................... 7

2.5 Radio Signal ........................................................................................................................................................... 7

2.6 QoS over 4G LTE Connection .............................................................................................................................. 7

3. Why Cisco 4G LTE? ............................................................................................................................................. 8

4. Cisco 4G LTE Offerings ....................................................................................................................................... 9

4.1 Cisco 4G LTE Product-Related Documentation ................................................................................................ 10

4.2 Service Plans ....................................................................................................................................................... 10

5. Configuring the Router for 4G LTE Connectivity ............................................................................................ 11

5.1 4G LTE Basic Configuration ................................................................................................................................ 11

5.2 Preparation to Connect ........................................................................................................................................ 11

5.3 Profile Configuration ............................................................................................................................................ 12

5.4 LTE Data-Call Setup ............................................................................................................................................ 12

5.5 Basic Internet Connectivity .................................................................................................................................. 13

Validating Basic Internet Connectivity ............................................................................................................ 14

Troubleshooting the Basic Connectivity ......................................................................................................... 16

5.6 4G as a Backup to Wired Primary WAN Connection ......................................................................................... 17

Branch-Office Router Configuration ............................................................................................................... 18

Validating Primary and Backup Connectivity .................................................................................................. 21

5.7 Enterprise Deployments Using 4G LTE as a WAN Interface ............................................................................ 21

6. DMVPN over 4G LTE as a Primary WAN .......................................................................................................... 22

Configuration of Branch Office 1 as a DMVPN Spoke .................................................................................... 22

Configuration of Branch Office 2 as a DMVPN Spoke .................................................................................... 24

Configuration of Central-Office Router as a DMVPN Hub .............................................................................. 27

Troubleshooting and Debugging .................................................................................................................... 28

7. Site-to-Site IPsec VPN ....................................................................................................................................... 30

Configuration of Branch-Office Router ........................................................................................................... 30

Configuration of Headquarters Router ............................................................................................................ 34

Troubleshooting and Debugging .................................................................................................................... 36

8. Site-to-Site IPsec with GRE for Dynamic Routing ........................................................................................... 37

Configuration of Branch-Office Router ........................................................................................................... 38

Configuration of Central-Office Router ........................................................................................................... 42

Troubleshooting and Debugging .................................................................................................................... 44

9. Cisco Easy VPN over 4G LTE ........................................................................................................................... 45

Configuration of Branch-Office Router ........................................................................................................... 45

Configuration on a Cisco Easy VPN Hub Gateway ........................................................................................ 48

Troubleshooting the Cisco Easy VPN Setup .................................................................................................. 50

10. Mobile IP Enterprise-Managed Deployments ................................................................................................ 51

Configuration of Branch-Office Router as Mobile Router ............................................................................... 52

Configuration of Headquarters Router as Home Agent .................................................................................. 55

Troubleshooting the Mobile IP Setup ............................................................................................................. 56

11. WAN Optimization over 4G LTE...................................................................................................................... 58