List of Figures

1.1. Example 1 – Mesh topology

1.2. RipEX_A – Mode and name

1.3. RipEX_A – Time

1.4. RipEX_A – Ethernet IP address

1.5. RipEX_A – Radio interface settings

1.6. RipEX_A – Babel common settings

1.7. RipEX_A – Babel Network settings

1.8. RipEX_A – Static rules settings

1.9. RipEX_A – Import filter settings

1.10. Babel diagnostics – Interfaces

1.11. Babel diagnostics – Neighbors

1.12. Babel diagnostics – Routes

1.13. Babel diagnostics – Entries

1.14. Babel diagnostics – Table babel_ipv4

1.15. RipEX_A – Diagnostics – Tools – ICMP Ping

1.16. RipEX_A – Diagnostics – Tools – Routing

2.1. Default Radio filter thresholds for 16DEQAM

2.2. RipEX_D Babel routing

2.3. RipEX_D Radio signal statistics

2.4. RipEX_D Babel routing, #2

2.5. Unknown IP addresses for Link addresses

2.6. RipEX_D filter policy set to “Reject”

2.7. RipEX_A Babel routes

2.8. RipEX_A Babel routes after setting RipEX_D to reject relay policy

2.9. RipEX_C Relay filter to increase metric by 100

2.10. RipEX_D Babel routes with higher metrics via 10.10.10.3

2.11. RipEX_D Relay filter – rejecting 192.168.2.0/23 subnets with /24 mask

2.12. RipEX_C Babel routes without 10.10.10.4 for 192.168.[2-3].0/24 networks

3.1. Example 3 – Two repeaters topology

3.2. Routing offering

3.3. Babel Routing state

3.4. Rx cost decreased in RipEX_C

3.5. Changed routing costs

3.6. RipEX_A – Ping to 192.168.4.1 (RipEX_D)

3.7. RipEX_C turned off, changes in metrics

3.8. RipEX_A – ping

3.9. RipEX_A – Statistics (Radio interface statistics)

4.1. Example 4 – Radio channel and Ethernet combination

4.2. RipEX_A – ETH4 configuration

4.3. RipEX_A – Babel setup (ETH)

4.4. RipEX_B – ETH4 setup

4.5. RipEX_B – Babel setup (ETH)

4.6. RipEX_A – Babel routing

4.7. RipEX_A – ETH monitoring

4.8. RipEX_A – Radio monitoring

4.9. RipEX_A – Babel routing with Ethernet being disconnected

4.10. RipEX_A – Babel data on ETH4 interface

5.1. Example 5 – Radio channel and Cellular LTE combination

5.2. RipEX_B – Cellular interface

5.3. RipEX_B – SIM1 setup

5.4. RipEX_B – GRE tunnel over cellular network

5.5. RipEX_B – Babel interface (GRE over LTE)

5.6. RipEX_B – Static routing via cellular (aux) interface

5.7. RipEX_D – GRE tunnel setup

5.8. RipEX_D – Babel interface (GRE over LTE)

5.9. RipEX_D – Static routing via cellular (aux) interface

5.10. RipEX_B – Cellular interface status

5.11. RipEX_B – Pings over cellular/LTE

5.12. RipEX_B – Babel Routing

5.13. RipEX_A – neighbors (cellular antenna removed from RipEX_B)

5.14. RipEX_B – Cellular/LTE connection down

6.1. Example 6 – Babel and OSPF diagram

6.2. RipEX_A – Ethernet bridge

6.3. RipEX_A – Babel Static rules (def. gateway)

6.4. RipEX_A – OSPF activation

6.5. RipEX_A – New OSPF backbone Area

6.6. RipEX_A – New OSPF interface

6.7. RipEX_A – OSPF static rules

6.8. RipEX_A – OSPF Import filter

6.9. RipEX_D – Ethernet configuration

6.10. RipEX_D – Radio communication disabled

6.11. RipEX_D – Babel protocol disabled

6.12. RipEX_D – OSPF protocol enabled

6.13. RipEX_D – New OSPF Area and Interface

6.14. RipEX_D – OSPF interface details

6.15. RipEX_D – OSPF Static rules

6.16. RipEX_D – OSPF Import filter

6.17. RipEX_A – System routing

6.18. RipEX_A – Babel routing

6.19. RipEX_A – OSPF output

6.20. RipEX_B – Babel routing

6.21. RipEX_D – System routing

6.22. RipEX_D – OSPF routing

7.1. Example 7 Babel and OSPF diagram 3

7.2. RipEX_A – ETH1 configuration

7.3. RipEX_A – ETH4 configuration

7.4. RipEX_A – OSPF Network interface

7.5. RipEX_A – OSPF Static rules

7.6. RipEX_A – Import filter, 1^st rule

7.7. RipEX_A – Import filter, 2^nd rule

7.8. RipEX_A – Export filter

7.9. RipEX_A – Babel Static rules

7.10. RipEX_A – Babel export rule

7.11. RipEX_C – ETH4 configuration

7.12. RipEX_C – OSPF activation

7.13. RipEX_C – New OSPF interface under backbone 0.0.0.0 area

7.14. RipEX_C – OSPF network

7.15. RipEX_C – OSPF Static rules

7.16. RipEX_C – 1^st OSPF Import filter rule

7.17. RipEX_C – 2^nd OSPF Import filter rule

7.18. RipEX_C – OSPF external filter rule

7.19. RipEX_C – Babel Export filter rule

7.20. RipEX_D – ETH1 configuration

7.21. RipEX_D – ETH3 “ospf1” interface

7.22. RipEX_D – ETH4 “ospf2” interface

7.23. RipEX_D – OSPF Network configuration

7.24. RipEX_D – OSPF interface (if_ospf1)

7.25. RipEX_D – OSPF interface (if_ospf2)

7.26. RipEX_D – OSPF Static rules

7.27. RipEX_D – OSPF Routing diagnostics

7.28. RipEX_C – Dynamic routing diagnostics

7.29. RipEX_D – Routing check to remote networks

7.30. RipEX_D – ICMP ping to remote IP addresses

7.31. RipEX_D – Highlighted dynamic route to 192.168.2.0/24 via RipEX_A

7.32. RipEX_D – Highlighted dynamic route to 192.168.2.0/24 via RipEX_C

7.33. RipEX_A – Ping from laptop to RipEX_C

7.34. RipEX_A – Babel metrics go down for the Radio channel

7.35. RipEX_A – Dynamic routing using Ethernet (OSPF) connection to RipEX_C

7.36. RipEX_A – RTT drops down

7.37. RipEX_A – Babel route is unreachable